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Please note that the parameters listed for each earthquake below were the PRELIMINARY calculations available at the time of issue. SEISMIC ALERT: LLANNON, CARMARTHENSHIRE 05:05 UTC 6 OCTOBER 2009 2.5 ML BGS have detected an earthquake at 05:05 UTC today located near Llannon, Carmarthenshire. At this time there are no reports of anyone having felt this event. This is the largest event detected in the region since the magnitude 3.2 ML Neath earthquake on 25 August 1930 and the magnitude 5.2 ML Swansea earthquake on 27 June 1906, which were both felt in the area, with intensities of 5 and 7 EMS, respectively. The following preliminary information is available for this event: DATE : 6 October 2009 Click here to view a pdf of a seismogram of the earthquake, as recorded on the BGS broadband network seismometers, and a map showing the seismicity of the area since 1690.. Issued 6 October 2009 SEISMIC ALERT: GOOLE, EAST YORKSHIRE 13:04 UTC 30 SEPTEMBER 2009 2.9 ML BGS have received a report from a resident of Brigg, South Humberside, of a felt event at approximately 13:04 UTC (14:04 BST). The report described a “small quick rumble” and “tv creaked”. This is the largest event to occur in this area since a magnitude 3.0 earthquake on 4 June 1984 near Selby, East, Yorkshire. Historically, however, larger earthquakes have been known to occur to the southeast of this today's event, the last and largest of these being a magnitude 5.2 that occurred on 27 February 2008 close to Market Rasen, Lincolnshire. The following preliminary information is available for this event: DATE : 30 September 2009 Click here to view a pdf of a seismogram of the earthquake, as recorded on the BGS broadband network seismometers, and a map showing the seismicity of the area since 1885. Issued 30 September 2009 SEISMIC ALERT: SOUTHERN NORTH SEA 00:30 UTC 15 SEPTEMBER 2009 3.3 ML BGS have detected an event at 00:30 UTC this morning with a location approximately 95 km east of Hull, East Riding of Yorkshire. It also locates around 7 km east of a magnitude 5.1 North Sea event on 9 February 1958 and 45 km southwest of the magnitude 6.1 ML North Sea event of 7 June 1931. The following preliminary information is available for this event: DATE : 15 September 2009 Issued 15 September 2009 SEISMIC ALERT: ISLE OF ANGLESEY, N WALES 26 JULY 2009 12:17 UTC (13:17 BST) 2.2 ML BGS have received a few reports from the residents of Anglesey of a felt event at approximately 12:17 UTC. The felt reports described a moderate sounding rumble and some weak shaking. The following preliminary information is available for this earthquake: DATE : 26 July 2009 Click here to view a pdf of a seismogram of the earthquake, as recorded on the BGS broadband seismometer at Hartland and a map showing the seismicity of the area since 1727. Issued 27 July 2009 SEISMIC ALERT: MAESTEG, BRIDGEND 5 JUNE 2009 19:42 UTC (20:42 BST) 2.9 ML BGS have received several reports from the media and residents of Bridgend, South Wales, of a felt event at approximately 19:42 UTC. The felt reports described “lying in bed and metal frame shook”, “the whole house creeked and it felt like it moved”, “the experience felt like a car had collided with the house” and “heard rumbling sound”. The following preliminary information is available for this earthquake: DATE : 5 June 2009 This is the largest event to occur in this area since a magnitude 3.8 earthquake on 23 May 1975, approximately 7 km southwest of Merthyr Tydfil. Historically, however, larger earthquakes, with magnitudes ranging from 4.9 to 5.2, have been known to occur to the west of this evening's event, the last and largest of these being a magnitude 5.2 that occurred in 1906 close to Port Talbot. Known as the Swansea earthquake, this was one of the most damaging earthquakes in Britain in the whole of the 20th century. Click here to view a pdf of a seismogram of the earthquake, as recorded on the BGS broadband seismometer at Hartland and a map showing the seismicity of the area since 1727. Updated 9 June 2009 BGS ALERT: POSSIBLE SONIC EVENT EYEMOUTH/BURNMOUTH, BERWICKSHIRE 11 MAY 2009 13:05 - 13:10 UTC (14:05 - 14:10 BST) BGS has received information from RAF Flying complaints and the Police that members of the public in the region between Eyemouth and Burnmouth, Berwickshire, reported a felt event sometime around 13:05-13:10 UTC on 11 May 2009. Reports described "a loud boom". Data from the BGS seismic networks in the region were examined and a signal consistent with a possible sonic origin was recorded at 13:08 UTC on stations in the area. The reports received are also consistent with historical observations received for previous events with a sonic origin. Issued 11 May 2009. SEISMIC ALERT: ULVERSTON, CUMBRIA 28 APRIL 2009 10:22 UTC (11:22 BST) 3.7 ML The following preliminary information is available for this earthquake: DATE : 28 April 2009 Cumbria was struck by a magnitude 3.7 earthquake on 28 April 2009 at 10:22 UTC (11:22 BST). Detailed analysis by the British Geological Survey shows that the epicentre was 5km southeast of Ulverston in south Cumbria. The earthquake was felt widely across Cumbria and Lancashire. “An earthquake of this size occurs somewhere in the UK roughly every year. It is unlikely to have caused significant damage.” said Brian Baptie from the British Geological Survey. This is the largest earthquake in the region since a magnitude 4.4 earthquake struck Lancaster in 1835, which caused some minor damage. More recently, a magnitude 3 earthquake occurred near Grange-Over-Sands in 1993. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity of the Ulverston area since 1672. Did you feel this earthquake? Click here to complete a macroseismic enquiry. The earthquake of the 28 April 2009 occurred at 10:22 UTC (11:22 BST), with an epicentre approximately 5 kilometres southeast of Ulverston, Cumbria, at a depth of around 9 km. The instrumental magnitude was determined at 3.7 ML and initial reports suggested that the earthquake had been felt across southern Cumbria and Lancashire. This is the largest instrumental earthquake in the region since a magnitude 3.0 ML earthquake that occurred 11 km to the northeast, near Grange-over-Sands, in 1993. Historically, the most significant earthquake to have struck the area was the 1835 Lancaster earthquake which had a magnitude of 4.4 ML and caused only very minor damage. A macroseismic survey was launched on the BGS ‘Earthquakes’ web site and, so far, over 800 responses have been received. A map of the data can be viewed at http://www.quakes.bgs.ac.uk/latest/200904281022_map.html. The completed questionnaires were arranged by location into squares 5x5 km, and an intensity value was assigned to each square, provided at least five responses were received from that square. Where fewer responses were received (especially the case in sparsely populated areas) the intensity was either given as “felt” or “not felt” (which is also defined as intensity 1). The large number of replies received is partly a function of the strength of shaking in the most affected area, but is also influenced by the fact that the shock occurred not far from the town of Ulverston, which is quite well-populated. The highest intensity experienced was 5 EMS (European Macroseismic Scale), which was observed over an area extending approximately 25 kilometres to the northeast and 35 kilometres to the south of the epicentre. Unsurprisingly, Ulverston has returned a high number of replies (83 so far) it being the closest settlement to the epicentre, whilst the Lancaster/Morecambe area has returned in the region of 400 replies. Comments received described the particular effects people had experienced. Closest to the epicentre, these included descriptions of the noise made by the earthquake as sounding like a heavy clap of thunder or a quarry blast and of the whole house shaking. Almost a third of all the people who reported having felt the event said they had been frightened. A few people reported objects falling over or coming off their wall-fixing. In several reports it was stated that domestic animals were alarmed. There were no reports of damage to property. The most distant reports were from the following places: to the north, the earthquake was felt in Carlisle (80 km); to the northeast, the earthquake was reported as having been felt in Durham and Newcastle (115-135 km); to the southeast, the earthquake was felt near Harrogate and Leeds (100 km); and also near Manchester to the south (95 km). Some examples of what people reported experiencing: “Whole building shook and moved chairs and tables noticeably and disconcerting” Updated 29 April 2009 . SEISMIC ALERT: GOXHILL, NTH. LINCOLNSHIRE 11 APRIL 2009 11:39 UTC 3.0 ML The British Geological Survey recorded an earthquake with a magnitude of 3.0 ML approximately 8 km southeast of Hull at 11:39 UTC on 11 April 2009. The earthquake was felt by a few residents in the surrounding area. Reports described the earthquake as being "a very short thud through the floor", "a weak rumble, then intensified before stopping" and "the oven grill shelving rattled". There are around three earthquakes of this size in mainland Britain every year. This earthquake was around 2000 times smaller in terms of energy release than the magnitude 5.2 ML earthquake that struck nearby at Market Rasen on 27 February 2008, causing some damage. Historically, an earthquake with a magnitude of 4.2 occurred on 15 December 1703 just 11 km southeast of this latest event. The following preliminary information is available for this earthquake: DATE : 11 April 2009 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity of the Goxhill area since 1703. Updated 15 April 2009 . SEISMIC ALERT: BONAWE, ARGYLL & BUTE 24 MARCH 2009 07:52 UTC 1.9 ML BGS have received a number of reports from the Media and from residents in the Bonawe, Taynuilt, Connel and North Connel areas of Argyll & Bute, of a felt event this morning at around 08:00 UTC. Felt reports described "the windows shook", "the house rattled and dust was lifted from shelves" and "sounded very much like a distant explosion", indicating an intensity of at least 3 EMS. The following preliminary information is available for this earthquake: DATE : 24 March 2009 Updated 24 March 2009 . SEISMIC ALERT: FOLKESTONE 14:35 UTC 3 MARCH 2009 3.0 ML The British Geological Survey recorded an earthquake with a magnitude of 3.0 directly under Folkestone at 14:35 on 3 March 2009. The earthquake was felt by many residents of Folkestone and the surrounding area. Reports described the earthquake as being "quick but very scary and noisey", "like an explosion" and with "quite strong rumbling". Some people described the event as being like "a large lorry driven by" or that it "felt like a pneumatic drill on the floor". Others reported that "crockery shook and rattled noticeably" and "the whole room rumbled and the desk shuddered". Most people reported the strength of the shaking as weak to moderate with the sound being soft. There are around three earthquakes of this size in mainland Britain every year. Today’s earthquake was around 200 times smaller than the magnitude 4.3 earthquake that struck Folkestone on 28 April 2007, causing some damage. “This was a small earthquake, even by British standards and we would not expect it to cause any damage” said Dr Brian Baptie from the British Geological Survey Significant earthquakes also struck the Dover Straits in 1776 and 1580; the latter had an approximate magnitude of 5.7 ML and reportedly caused damage in London. The following preliminary information is available for this earthquake: DATE : 3 March 2009 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity of the Folkestone area since 1382. Did you feel this earthquake? Click here to complete a macroseismic enquiry. Click here to view a map showing where macroseismic reports have been received from. Updated 4 March 2009 . SEISMIC ALERT: SHETLAND ISLES 05:32 UTC 15 JANUARY 2009 3.3 ML BGS have received a number of reports of an earthquake from residents in the Shetland Isles on 15 January. The earthquake had a magnitude of 3.3 with an epicentre on the Shetland Isles. There is around three earthquakes of this size in the UK every year. Reports described "similar feeling to being moved forward then stopping with a jolt", "windows shook, like as if a truck was driving past really fast and close", "the noise got louder, then stopped, then the windows went in and out", "growing rumble, sounded very much like a fast approaching, and very large train" and "like a loud explosion". The strength of the shaking has been described in most cases as moderate, enough to make furniture shake and windows or crockery rattle. Some reports indicate that people were woken from sleep and a few were frightened. However, an earthquake of this size is unlikely to cause any structural damage. This is the largest earthquake to strike this area since a magnitude 3.5 earthquake on 12 October 2002, approximately 85 km southeast of today’s event. The Shetland Isles are low in seismic activity with any events occurring usually below 2 in magnitude. The only earthquake of note to have occurred on the mainland of Shetland Isles was a magnitude 2.0 on the island of Unst in 1886. The following preliminary information is available for this earthquake: DATE : 15 January 2009 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity of the Shetland Isles since 1886. Did you feel this earthquake? Click here to complete a macroseismic enquiry. Click here to view a map showing where macroseismic reports have been received from. Issued 15 January 2009 . BGS ALERT: SONIC EVENT NORTH WALES/MERSEYSIDE 18 NOVEMBER 2008 14:25-14:35 UTC BGS has, over the past couple of days, received information from members of the public in the North Wales and Merseyside areas, and from the local media, of a felt event sometime around 14:30 UTC on 18 November 2008. Reports describe "all the windows rattled", "the roof appeared to shake" and "we heard a boom and felt a rumbling sensation for a few seconds". Data from the BGS seismic network in the region were examined but no earthquakes or signals consistent with a sonic origin were detected. However, the reports received are consistent with historical observations reported for previous events with a sonic origin. British Aerospace were contacted and have now confirmed that a Typhoon Euro-fighter was on exercise over the Irish Sea at the time and that the aircraft went supersonic within the time window reported. Updated 20 November 2008. SEISMIC ALERT: BROMYARD, HEREFORDSHIRE 18:06 UTC 26 OCTOBER 2008 3.6 ML BGS have received a number of reports from residents in the Herefordshire area of a felt event this evening at 18:06 UTC. Felt reports described "a thump as if someone had jumped off the bed upstairs" and "loud boom noise as though something extremely heavy had fallen on the wood floor above my head". The strength of the shaking has been described as moderate, enough to make furniture shake and windows and crockery rattle. Some reports indicate that people were woken from sleep and a Today’s event locates approximately 17 km southeast of a magnitude 2.4 ML earthquake which occurred on 17 September 1993. Historicaly, the largest earthquake to have occurred in this area was a magnitude 5.3 event on 17 December 1896. The following preliminary information is available for this earthquake: DATE : 26 October 2008 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1768. Did you feel this earthquake? Click here to complete a macroseismic enquiry Click here to view a map showing where macroseismic reports have been received from. Issued 26 October 2008. SEISMIC ALERT: FORT WILLIAM, HIGHLANDS 10 OCTOBER 2008 04:28 UTC 3.4 ML BGS have received a number of reports from residents in the Fort William, Highland, area of a felt event this morning at approximately 04:28 UTC. Reports have been received from Fort William, Glenfinnan, Ardgour, Strontian and Drumnadrochit. Felt reports described "a train rumbling past" and "dogs also went mad barking and growling". The strength of the shaking has been described as moderate, lasting between 2-3 seconds, though enough to make furniture shake and windows or crockery rattle. Most reports indicated that people were woken from their sleep and of a few being frightened. The following preliminary information is available for this earthquake: DATE : 10 October 2008 Today’s event locates approximately 14 km south of a magnitude 2.3 ML earthquake which occurred near Loch Morar on 27 January 2008, and was felt with intensities of up to 3-4 EMS. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1809. Did you feel this earthquake? Click here to complete a macroseismic enquiry. Click here to view a map showing where macroseismic reports have been received from. Updated 10 October 2008. SEISMIC ALERT: TARBERT, ARGYLL & BUTE 9 AUGUST 2008 12:32 UTC 1.8 ML BGS have received a report from a resident in West Loch, Tarbert, Argyll & Bute, of an event on 9 August at approximately 13:35 BST (12:35 UTC). The report described "the house shook" and "various objects rattled". The resident also confirmed that "it was the talk of the local hotel as the earthquake had been felt by many Tarbert residents" and that "it was also felt by others in Lochgilphead". The following preliminary information is available for this earthquake: DATE : 9 August 2008 The earthquake locates approximately 11 km NNE of a magnitude 2.7 ML earthquake that occurred on 12 February 2000 near Lochgilphead, which was felt with intensities of at least 4 EMS. BGS ALERT: POSSIBLE SONIC EVENT NORTH WALES 2 JULY 2008 16:45-17:30 UTC BGS has received information from the local media and from several members of the public, from the Denbighshire and Conwy counties, North Wales, of a felt event sometime between 16:45 and 17:30 UTC last night (2 July). Reports describe "heard a low grumbling noise and the windows and doors rattled for about 3 or 4 seconds" and "the roof appeared to have been hit by a heavy object". Data from the BGS rapid-access networks in the region were examined but no earthquakes or signals consistent with a sonic origin were detected. However, the reports received are consistent with historical observations received for previous events with a sonic origin. British Aerospace were contacted and have confirmed that aircraft were on exercise over the Irish Sea within the time window reported. Updated 3 July 2008.
The following preliminary information is available for these earthquakes: DATE : 28 May 2008 DATE : 28 May 200 To date, there have been no reports of anyone having felt either of these events. Both are located approximately 12 km NW of Penrith, 35 km SSE of Chapelcross and 50 km northeast of Sellafield Updated 29 May 2008.
The following preliminary information is available for this earthquake: DATE : 5 April 2008 The location is in the same area as the magnitude 5.2 Market Rasen earthquake which occurred at 00:56 UTC on 27 February 2008 and was felt throughout much of England and Wales. Updated 7 April 2008 BGS ALERT: SONIC EVENT NORFOLK AREA 20 MARCH 2008 12:10 - 12:40 UTC BGS has received information from several residents and from the local Media, of a felt events from 12:10 - 12:40 today, in the area of Norwich and the surrounding area. People have described "the whole house shook" and "rocked our office building" and "a loud bang". Data from the BGS seismic network in the region were examined and a signal consistent with a possible sonic origin was recorded at 12:13 UTC on stations in the area. The reports received are also consistent with historical observations received for previous events in the area for events with a sonic origin. The RAF were contacted but could not confirm if aircraft were operational at the time. BBC News - 'SONIC BOOM SHAKES PARTS OF COUNTY' Updated 20 March 2008 SEISMIC ALERT: MARKET RASEN, LINCOLNSHIRE 27 FEBRUARY 2008 00:56 UTC 5.2 ML The following preliminary information is available for this earthquake: DATE : 27 February 2008 BGS have been inundated with calls from the public, the Media and the emergency services throughout England. The epicentre is approximately 4 km north of Market Rasen and reports suggest that the earthquake has been felt widely across England and Wales, with reports of one person having been injured and of damage to chimneys in the epicentral area. Earthquakes of this size occur in mainland UK roughly every 30 years, although are more common in offshore areas. This is the largest earthquake in the UK since the magnitude 5.4 ML Lleyn Peninsula event in July 1984, which was also felt throughout England and Wales. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1985. Updated 28 February 2008 BGS ALERT: POSSIBLE SONIC EVENT DEVON 12 FEBRUARY 2008 10:38 UTC BGS has received information from several residents and from the local Media, of a felt event at around 10:40 UTC this morning, in the area between Plymouth and Torquay, Devon. Reports describe "heard two bangs and felt a slight tremor", "the whole house shook" and "felt two distinct shocks". Data from the BGS rapid-access networks in the region were examined and a signal consistent with a possible sonic origin was recorded at 10:38 UTC on station DYA (Yadsworthy). The reports received are consistent with historical observations received for previous events with a sonic origin. Both RAF Flying Complaints and British Aerospace were contacted but neither could confirm if aircraft were operational at the time. Updated 12 February 2008 12:05 UTC SEISMIC ALERT: LOCH MORAR, HIGHLAND 27 JANUARY 2008 13:21 UTC 2.3 ML BGS have received a report from a resident in the Lochailort, Highland, area of a felt event yesterday (27 January 2008) at approximately 13:21 UTC. The report described "we thought it was a thunderclap ", "it's shaking the entire house from the ground up" and "it sounded like the chimney had fallen down the roof as a rumble continued for several seconds". The following preliminary information is available for this earthquake: DATE : 27 January 2008 Yesterday’s event locates in the same region as a magnitude 2.8 ML earthquake which occurred on 19 January 2006, and was also felt with intensity of 3-4 EMS Updated 28 January 2008 10:15 UTC SEISMIC ALERT: PENICUIK, MIDLOTHIAN 9 DECEMBER 2007 15:59 UTC 2.3 ML BGS have received several reports from residents in the Penicuik, Midlothian area, of a felt event yesterday (9 December) at approximately 16:00 UTC. The felt reports described "we noticed a strong thump from beneath the floor", "felt a rumbling which lasted no more than a second or two" and "felt a sideward motion of the house and heard a bang". The following preliminary information is available for this earthquake: DATE : 9 December 2007 Yesterday’s event locates in the same region as a magnitude 2.3 ML earthquake which occurred ten days ago, on 30 November 2007, and was also felt with intensities between 3 and 4 EMS. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity (magnitude 2.0 and above) within 25 km of the event since 1789. Updated 10 December 2007 11:45 UTC SEISMIC ALERT: LLANGOLLEN, NORTH WALES 30 NOVEMBER 2007 22:05 UTC 2.9 ML BGS have received several reports, mainly from residents in the Llangollen area of North Wales, of a felt event at approximately 22:05 UTC on 30 November. The felt reports described "a moderate shaking, enough to make windows rattle" and "a faint rumbling", indicating an intensity of at least 4 EMS. The furthest away reports came from close to Shrewsbury in the southeast and Ffestiniog to the west. This earthquake locates approximately 18 kilometres southeast of a magnitude 3.5 ML earthquake that occurred on 23 January 1974 near Bala, Gwynedd, which was felt with intensities of at least 4 EMS. The following preliminary information is available for this earthquake: DATE : 30 November 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1613. Updated 3 December 2007 SEISMIC ALERT: PENICUIK, MIDLOTHIAN 30 NOVEMBER 2007 17:08 UTC 2.3 ML BGS have detected an earthquake at 17:08 UTC on 30 November 2007 located near Penicuik, Midlothian. A single report has been received from a local resident that described "the building I was in shook violently". This is the largest earthquake detected in the region since a magnitude 2.3 ML event, near Rosewell, on 21 December 1986, which was felt with intensities of at least 4 EMS in the epicentral area. The following preliminary information is available for this earthquake: DATE : 30 November 2007 Updated 3 December 2007 SEISMIC ALERT: OFF THE COAST OF MARGATE, KENT 12 OCTOBER 2007 09:34 UTC 2.3 ML BGS have received information from members of the public residing in the Margate area of a felt event at approximately 09:35 UTC on 12 October. Reports described, “the whole house shook from side to side ” and “loud rumbling ”. Data from the BGS seismic network in the region were examined and signals consistent with an explosion were recorded. Dover Coastguard has confirmed the controlled detonation of a WW II mine by Royal Navy bomb disposal team, off the coast of north Kent, approximately two kilometres north of Margate. The following preliminary information is available for this earthquake: DATE : 12 October 2007 Updated 12 October 2007 SEISMIC ALERT: SOUTHERN JURA, ARGYLL 17 SEPTEMBER 2007 19:35 UTC 3.0 ML BGS have detected an earthquake at 19:35 UTC on 17 September 2007 located on the southern tip of the Isle of Jura, Argyll, approximately 4.0 km southwest of the settlement of Craighouse. BGS have received information from the local media of reports that this event was felt on the Isle of Islay and on southern Jura. This earthquake is located approximately 28 km south of a magnitude 3.5 ML event detected on 3 May 1998. The following preliminary information is available for this earthquake: DATE : 17 September 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1975. Updated 18 September 2007 BGS ALERT: POSSIBLE SONIC EVENT EAST KENT 5 SEPTEMBER 2007 09:50 UTC BGS has received information, via the Media, of a felt event at around 10:50 BST (09:50 UTC) this morning, in the Margate, Ramsgate, Canterbury and Faversham areas of east Kent. Reports describe "heard a bang and felt a tremor" and "the house shook". Data from the BGS rapid-access networks in the region were examined and a signal consistent with a possible sonic origin was recorded at 09:50 UTC on station TFO (Folkestone). The reports received are consistent with historical observations received for previous events with a sonic origin. Updated 5 September 2007 SEISMIC ALERT: MANCHESTER 30 AUGUST 2007 04:46 UTC 2.2 ML BGS have received many reports from the media and from residents in the Manchester area, of a felt event at approximately 05:46 BST. The felt reports described a weak-moderate shaking, enough to make beds and wardrobes rattle, and faint rumbling. The following preliminary information is available for this earthquake: DATE : 30 August 2007 This morning’s earthquake locates in the same region as five other events which occurred earlier this month between 10-23 August; the largest event having a magnitude of 2.5 ML. All these events locate in the same region as a series of 150 events which occurred between October 2002 and January 2003. The largest event in that series, with a magnitude of 3.9 ML, occurred on 21 October 2002 and was felt throughout the region with intensities of 5 EMS. Manchester Earthquakes Swarm Report. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1777. Updated 30 August 2007 BGS ALERT: POSSIBLE SONIC EVENT CLEVELAND 24 AUGUST 2007 09:00-09:15 UTC BGS has received information, via the Media, of a felt event, sometime between 09:00 and 09:15 UTC this morning, in the Redcar, Saltburn, Marske and Guisborough areas of Cleveland. Reports describe “heard a bang then felt a rumble” and "the house shook”. Data from the BGS rapid-access networks in the region were examined but no earthquakes or signals consistent with a sonic origin were detected. However, the reports received are consistent with historical observations received for previous events with a sonic origin. Both RAF Flying Complaints and British Aerospace were contacted
but neither could confirm if aircraft were operational at the time. Updated 24 August 2007 BGS ALERT: CONFIRMED SONIC EVENTS NORTH WALES 23 AUGUST 2007 11:00 & 13:30 UTC BGS has received several reports from members of the public and the Media of events between 11:00 and 11:20 UTC and again between 13:30 and 13:45 UTC today (23 August), from the Angelsey and Bangor areas of Gwynedd, North Wales. Reports describe "the windows rattled" and "the house shook". Data from the BGS rapid-access networks in the region were examined and no tectonic seismic events were detected. However, the reports received are consistent with historical observations received for previous events with a sonic origin. British Aerospace was contacted and has confirmed that a Typhoon
Euro-fighter was on supersonic exercises over the Irish Sea at these
times, and that the aircraft went supersonic within the two time
windows reported. Updated 24 August 2007 SEISMIC ALERT: MANCHESTER 10 AUGUST 2007 10:50 UTC 2.5 ML BGS have received numerous reports from the Media and from residents in the Manchester and Stockport areas, of a felt event at approximately 11:50 BST. The reports described “the whole house shook and vibrated for a few seconds”, “there was a sudden jolt” and “the building shook violently and people ran into the streets”. The following preliminary information is available for this earthquake: DATE : 10 August 2007 This event locates in the same region as a series of approximately 150 events which occurred between October 2002 and January 2003. The largest event in that series, with a magnitude of 3.9 ML, occurred on 21 October 2002 and was felt throughout the region with intensities of at least 5 EMS. Manchester Earthquakes Swarm Report. Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1777. Updated 10 August 2007 SEISMIC ALERT: CENTRAL GRABEN, NORTH SEA 01:01 UTC 24 JULY 2007 3.1 ML BGS have detected an earthquake at 01:01 UTC on 24 July 2007 approximately 250 km east of Aberdeen, Aberdeenshire, and 275 km southwest of the southern coast of Norway. To date, there are no reports of anyone having felt this event. This earthquake is located very close to a magnitude 3.9 event detected on 4 June 2007 and 90 km northeast of a magnitude 4.2 event on 7 May 2001. The following preliminary information is available for this earthquake: DATE : 24 July 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 250 km of the event since 1765. Updated 24 July 2007 SEISMIC ALERT: MELTON MOWBRAY, LEICESTERSHIRE 17 JULY 2007 17:17 UTC 2.6 ML BGS have detected an event at 17:17 UTC on 17th July with a location approximately 5 km north-west of Melton Mowbray, Leicestershire. A report has been received from the village of Kirby Bellars (approx 4 km south of the epicentre) that described "a deep roaring noise, immediately followed by the house shaking and windows rattling". This event locates approximately 8km WSW of the magnitude 4.1 Melton Mowbray earthquake of 28 October 2001 that had a maximum intensity of 5 EMS. The following preliminary information is available for this event: DATE : 17 July 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1893. Updated 18 July 2007 SEISMIC ALERT: SOUTHERN NORTH SEA 05:27 UTC 16 JULY 2007 3.0 ML BGS have detected an event at 05:27 UTC this morning with a location approximately 180 km east of Kingston-Upon-Hull, Humberside and 87 km southeast of the magnitude 6.1 ML North Sea event of 7 June 1931. The following preliminary information is available for this event: DATE : 16 July 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 100 km of the event since 1923. Updated 16 July 2007 SEISMIC ALERT: MILLOM, CUMBRIA 8 JULY 2007 20:04 UTC 2.0 ML The following preliminary information is available for this earthquake: DATE : 8 July 2007 Click here to view a pdf of seismograms of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 25 km of the event since 1755. Updated 10 July 2007 SEISMIC ALERT: CENTRAL NORTH SEA 17:34 UTC 4 JUNE 2007 4.0 ML BGS have detected an earthquake at 17:34 UTC on 4 June 2007 approximately 245 km east of Aberdeen, Aberdeenshire, and 275 km southwest of the southern coast of Norway. To date, there are no reports of anyone having felt this event. This earthquake is located approximately 90 km northeast of a magnitude 4.2 event on 7 May 2001. The following preliminary information is available for this earthquake: DATE : 4 June 2007 Click here to view a seismogram of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 250 km of the event since 1765. Updated 5 June 2007 SEISMIC ALERT: DOVER STRAITS 07:18 UTC 28 APRIL 2007 4.3 ML BGS have received numerous reports from the Police, the Media and from residents throughout Kent, of a felt event at approximately 08:15 BST. The felt reports described “the whole house shook and vibrated for approx 5 seconds”, “our animals were very disturbed and my son's large fish tank wobbled and the water splashed from side to side”, “a glass of water on my desk was still rippling from the event a few seconds later” and “it lasted for approaching 10 seconds causing our houses to shake”. The following preliminary information is available for this earthquake: DATE : 28 April 2007 This is the largest event detected in the region since a magnitude 4.4 ML earthquake in 1950. Large earthquakes have also occurred in the region in the historical past in 1382 (magnitude 5.8), 1580 (magnitude 5.8) and 1776 (magnitude 4.1). Click here to view a seismogram of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 50 km of the events since 1382. A preliminary moment tensor solution has been computed based on 5 stations from the UK. The solution shows a strike-slip mechanism with the nodal planes in either SW-NE or NW-SE direction. Updated 28 April 2007 BGS ALERT: POSSIBLE EXPLOSION LEITH, EDINBURGH 10 APRIL 2007 19:00 UTC BGS have received reports via the Lothian and Borders Fire and Rescue Service and the media, of a felt event sometime around 19:00 UTC, last night, in the Leith area, Edinburgh. Reports, from a floating restaurant in the area, described, “furniture moved" and “glasses fell off shelves”. Data from the BGS rapid-access networks in the region were examined and a small signal was recorded on nearby seismic station, EDI, in Edinburgh at 18:59 49s UTC. SEISMIC ALERTS: MALTBY, SOUTH YORKSHIRE MARCH 2007 BGS have received a number of reports via Doncaster City Council and from a number of residents in the Maltby area of South Yorkshire of several felt events between 7 – 14 March. Reports described, “movement of the house which physically rocked” and “faint rumbling”. The shallow depths and characteristics of the seismograms are similar to previously recorded activity in the area that was associated with mining. The following preliminary information is available for these earthquakes:
These are the largest events detected in the region since a magnitude 1.9 ML earthquake near Doncaster on 21 February 2005. Click here to view a seismogram of the earthquakes, as recorded on the BGS seismograph network and a map showing the seismicity within 25km of the events since 1902. Updated 15 March 2007 SEISMIC ALERT: BGS have received a number of reports via the Strathclyde Police and from a number of residents in the Lochgoilhead area of Strathclyde of felt events at approximately 20:10 UTC last night. Reports described, “felt the house shake”, “we felt two distinct tremblings” and “heard a loud rumble”. The following preliminary information is available for these earthquakes: DATE : 18 February 2007 DATE : 18 February 2007 Last night’s events are the largest detected in the region since a magnitude 2.9 ML earthquake near Loch Fyne on 18 May 1996, which was felt with intensities of 4 EMS in the epicentral area. Click here to view a seismogram of the earthquakes, as recorded on the BGS seismograph network and a map showing the seismicity within 25km of the events since 1821. Updated 19 February 2007 SEISMIC ALERT: EASTERN NORTH SEA 28 JANUARY 2007 10:30 UTC 4.4 ML BGS have detected an earthquake at 10:30 UTC on 28 January 2007 approximately 50 km southwest of the southern Norwegian coast. This event was felt in southern parts of Norway. There were no reports of damage or casualties. This earthquake is located 30 km northeast of a magnitude 4.5 event that occurred on 2 May 1990. The following preliminary information is available for this earthquake: DATE : 28 January 2007 Click here to view a seismogram of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 50 km of the event since 1981. Updated 29 January 2007 SEISMIC ALERT: SOUTHERN NORTH SEA 23 JANUARY 2007 17:32 UTC 3.5 ML BGS have detected an earthquake at 17:32 UTC on 23 January 2007 approximately 60 km northeast of Margate, Kent, and 65 km east of Clacton-on-Sea, Essex. To date, there are no reports of anyone having felt this event. This earthquake is located approximately 35 km north of a magnitude 5.8 event in 1382. The following preliminary information is available for this earthquake: DATE : 23 January 2007 Click here to view a seismogram of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 50 km of the event since 1382. Updated 24 January 2007 SEISMIC ALERT: NORWEGIAN SEA 7 JANUARY 2007 01:50 UTC 4.8 ML BGS have received three reports from residents in the Shetland Islands of a felt event at 01:50 UTC on 7 January 2007 approximately 200 km northeast of the Shetland Islands. Reports described, “computer table rocked back and forth” and “rattle was more severe and prolonged than I have ever heard before”. The following preliminary information is available for this earthquake: DATE : 7 January 2007 Yesterday’s event is located within a 20 km radius of four other events measuring between 4.1 and 4.7 ML which occurred between 1976 and 1990, and also 90 km northwest of a magnitude 5.6 earthquake which occurred on 6 April 1977 and was felt in Norway, Sweden and the Shetland Islands. Click here to view a seismogram of the earthquake, as recorded on the BGS seismograph network and a map showing the seismicity within 200 km of the event since 1879. Updated 07 January 2007
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