The magnitude 8.4 and 7.8 southern Sumatra earthquakes of September 12, 2007 According to the US Geological Survey,[2] the earthquake was caused by thrust faulting on the boundary between the Australian Plate and the Sunda Plate. 2007. | U.S. Geological SurveyURL: http://earthquake.usgs.gov/eqcenter/eqinthenews/2007/us2007hear/index.phpPage No casualties were reported in the country, as of 13 September.[16][17]. [10] The death toll of the earthquakes is 21 with 88 people injured. The September 12, 2007, M 8.5 southern Sumatra earthquake occurred as the result of shallow thrust faulting on the boundary between the Australia and Sunda plates. A total of 4 tsunami alerts were issued in 24 hours. Preliminary magnitude of 6.3 RS earthquake struck 50 km from Padang, a city on Sumatra's western coast. program. The great magnitude 9.1 earthquake of mm/year. A tsunami warning was issued for the immediate area and watches for adjacent regions. and Sunda plates. Like Singapore, the tremors were most severe on high-rises, resulting in minor panic and evacuations. Accessibility FOIA and roads damaged in Bengkulu and Sumatera Barat. A 6.7 struck Southern Sumatra on Sept 20, 2007. "Indonesia: Earthquakes West Sumatra Province OCHA Situation Report No. Power and telephone outages occurred. 70 dead - 3-6-07. compiled by Dee Finney. A variety of local and international aid organizations have deployed to the region to assist victims. [6] Most of the aftershocks have been northwest of the original magnitude 8.4 earthquake. the plate boundary is accommodated by strike-skip faulting on the Sumatra fault, however the USGS has no information that an actual tsunami has been generated. Tremors felt in Jakarta were described as being "violent". [11], Tremors were felt in neighbouring countries as far away as Southern Thailand. very preliminary, and may disagree with the more accurate USGS locations and date, ruptured much of the boundary separating the India plate and the Burma The first event, M w8.4, struck at 6:0 p.m. local time on September 2. [20] By late 12 September, the tsunami warning was recalled. Privacy Policies and Notices. The magnitude 8.4 earthquake of September 12, 2007 is the fourth earthquake Nias Island earthquake of March 28, 2005, ruptured a segment of the plate On September 2 and 3, 2007, two earthquakes struck off the island of Sumatra, Indonesia, causing dam- age in the provinces of Bengkulu, Jambi, and West Sumatra, and in the Mentawai Islands. The magnitude 8.4 earthquake was the most powerful earthquake of 2007 to date, more powerful than the two March 2007 Sumatra earthquakes nearby and the 2007 Peru earthquake. Tectonic [15] In Peninsular Malaysia, tremors were reported after 19:15 local time, including Kuala Lumpur, Putrajaya, Johor Bahru, Malacca and Penang. two earthquakes and their aftershocks overlay the southern portion of the Massive earthquake strikes Indonesia on September 12, Indonesia quake was 8.4 magnitude, says USGS, "Sumatra 2007: M 8.4 - southern Sumatra, Indonesia", "Sumatra 2007: M 7.9 - Kepulauan Mentawai region, Indonesia", "Sumatra 2007: M 7.0 - Kepulauan Mentawai region, Indonesia", DART Buoy Station 23401 - 600 NM West-Northwest of Phuket, Thailand, Message indian.2007.09.13.002807 Pacific Tsunami Warning Center, NWS, Reuters AlertNet - Indonesia quake toll rises to 21 dead, 88 wounded, Tsunami alert issued after Indonesia quake: US centre, Singapore buildings sway after strong quake hits Indonesia, "8.2 magnitude quake sparks tsunami warnings", Powerful earthquake triggers tsunami in western Indonesia, India on tsunami alert after quake near Indonesia, Southern Sumatra Earthquake in 2007, coastal change, GSI, USGS Earthquake Center 8.5 tracking report, USGS Earthquake Center 7.9 tracking report, https://en.wikipedia.org/w/index.php?title=September_2007_Sumatra_earthquakes&oldid=976041169, Earthquake clusters, swarms, and sequences, Articles with Japanese-language sources (ja), Wikipedia articles incorporating text from the United States Geological Survey, Creative Commons Attribution-ShareAlike License, This page was last edited on 31 August 2020, at 21:11. The magnitude 8.4 and 7.8 southern Sumatra earthquakes of September 12, 2007 occurred as the result of thrust faulting on the boundary between the Australia and Sunda plates. Bengkulu, Sumatra, Indonesia and 625 km (390 miles) WNW of JAKARTA, Java, The earthquake locations and magnitudes cited in these bulletins are [7] The severe damage to other structures includes over 130 public facilities, 310 mosques, 60 government buildings, 370 schools, and 230 shops. According to data from the Japanese PALSAR microwave sensor aboard the Daichi(ALOS) satellite, South Pagai Island was uplifted, creating 6 new islands, and exposing previously submerged coral reefs as well as enlarging existing islands. Eggano Island, a distance of more than 2,000 km, has ruptured in a series of Earthquake Information Center: An earthquake occurred 130 km (80 miles) SW of A tsunami with a wave height [3] Over 43,000 houses were damaged, with over 12,000 of those severely damaged. At the latitude of the earthquake, the average long-term rate of displacement on the fault is about 20 mm/yr. Felt by 6", United Nations Office for the Coordination of Humanitarian Affairs, "West Sumatra Earthquake, March 13, 2007 : 17.00 PM", "Indonesia: Earthquakes West Sumatra Province OCHA Situation Report No. It was centred about 35 km underground, at 2°37′30″S 100°50′28″E / 2.625°S 100.841°E / -2.625; 100.841, some 185 km (115 mi) south-southeast of Padang, Indonesia and about 205 km northwest of Bengkulu (about 225 km northwest of the magnitude 8.5 earthquake). CMT Project Moment Tensor Solution. which is inland on Sumatra proper. This article incorporates public domain material from websites or documents of the United States Geological Survey. moves northeast with respect to the Sunda plate at a velocity of about 60 the plate boundary offshore of the west coast of Sumatra. On Wednesday, September 12, 2007, a great earthquake struck off the southern coast of the island of Sumatra, killing at least 9 people and generating a relatively small tsunami. TeamPage Last Modified: September 27, 2007 8:01:07 AM. Sea level readings indicated that a tsunami was generated. and Boen, T., 2007. plate-motion perpendicular to the boundary is accommodated by thrust faulting on At the location of the earthquake, offshore of the west coast of Sumatra, the Australia plate moves northeast with respect to the Sunda Plate at a velocity of about 69 mm/year, oblique to the orientation of the plate boundary. Indonesia at 5:10 AM MDT, Sep 12, 2007 (6:10 PM local time in Indonesia). It caused buildings to sway in Jakarta, and some buildings were reported to have collapsed in the city of Bengkulu, Bengkulu Province, about 100 km from the epicenter. The direction of relative plate motion is oblique to the orientation of The second earthquake occurred at 12:49 hours with the epicentre at approximately 11 km southwest of Batusangkar. The following is a release by the United States Geological Survey, National Detailed earthquake information - overview map, magnitude, time, depth, information source, shake map, list of reports. The September 2007 Sumatra earthquakes were a series of megathrust earthquakes that struck the Sunda Trench off the coast of Sumatra, Indonesia, with three of magnitude 7 or greater. The March 2007 Sumatra earthquakes occurred near the northern end of Lake Singkarak in Sumatra, Indonesia, on March 6. the northern portion of Siberut Island. The second largest earthquake, 7.9 Mw,[4] occurred later the same day at 23:49:04 UTC (06:49:04 local time the following day). Feature interactive map: submit / read I-felt-an-earthquake reports and links to further info. [8] The total value of damage is estimated to be around 1.4 trillion Indonesian rupiah (US$160 million).[7]. the magnitude 8.4 earthquake at the northern end of the aftershock zone. http://tsunami.gov. The component of plate motion perpendicular to the boundary produces thrust faulting on the offshore plate-boundary. 5", https://doi.org/10.1111/j.1365-246X.2010.04511.x, https://en.wikipedia.org/w/index.php?title=March_2007_Sumatra_earthquakes&oldid=976040601, Creative Commons Attribution-ShareAlike License. It is regarded as an aftershock of the two larger earthquakes.[5]. magnitudes computed using more extensive data sets. SUMATRA - THE QUAKES PERSIST. north of the source region of the magnitude 7.9 earthquake on June 4, 2000. plate. U.S. Department of the Interior This event has been reviewed by a seismologist. Since the December 26, 2004 Ruptures PDF. magnitude and location may be revised when additional data and further analysis The [21] Similarly, a tsunami alert was issued in Peninsular Malaysia at 20:50 (local time) for the coastal areas of Perlis, Kedah, Perak and Penang; the alert was lifted two hours later. plate boundaries offshore of western Sumatra. earthquake, much of the Sunda trench between the northern Andaman Islands to large subduction zone earthquakes. For information about tsunamis, contact the NOAA Tsunami Warning Centers at results are available. The EARTHQUAKE on 06/03/2007 at 03:49 (UTC) SOUTHERN SUMATRA, INDONESIA 11 km SE Bukittinggi [6], Over 60 fatalities and 460 serious injuries have been reported, spread across many towns and regencies in West Sumatra. The March 2007 Sumatra earthquakes occurred near the northern end of Lake Singkarak in Sumatra, Indonesia, on March 6. [7] According to the governor of West Sumatra, Agam Regency is the worst affected area, though other areas including Solok Regency and Tanah Datar are also badly affected. The first shock in this earthquake doublet struck with a maximum Mercalli intensity of VIII (Severe) and the second shock that arrived two hours later had a maximum Mercalli intensity of VI (Strong). [4][5], The initial quake at 10:49 (03:49 UTC) measured 6.4 on the moment magnitude scale and the second quake at 12:49 (05:49 UTC) measured 6.3. Earthquake Information Center: http://earthquake.usgs.gov/eqcenter/eqinthenews/2007/us2007hear/index.php, 34 km (21.1 miles) set by location program, horizontal +/- 6.1 km (3.8 miles); depth fixed by location [18] A small tsunami, some 15 cm high, was reported at the Cocos Islands. The most powerful of the series had a magnitude of 8.4, which makes it in the top 20 of the largest earthquakes ever recorded on a seismograph. Earthquakes of this type sometimes cause tsunamis, It was centered about 34 km underground, at 4°31′12″S 101°22′26″E / 4.520°S 101.374°E / -4.520; 101.374, about 130 km southwest of Bengkulu on the southwest coast of Sumatra, Indonesia, and some 600 km west-northwest of Indonesia's capital city, Jakarta. A tsunami approximately 1 metre high was reported at Padang, Indonesia. The first earthquake occurred at 11:10:26 UTC (18:10 local time) on 12 September 2007, and was an 8.4 Mw earthquake on the moment magnitude scale. [8], The tremors of the 8.4 Mw earthquake lasted for several minutes. Two other major earthquakes struck later. Aftershocks continued into 13 September and 14 September, with more earthquakes ranging up to magnitude 6.4. Warning Center, Global After the first, and largest, earthquake, the Pacific Tsunami Warning Centre issued a tsunami alert for much of the Indian Ocean basin. The Government of India asked the states of Tamil Nadu, Kerala, Andhra Pradesh and the union territories of Andaman and Nicobar Islands and Puducherry to be on high alert. It was followed by several earthquakes of magnitude 5 through 6 along the same fault, west of Sumatra. It was centered about 34 km underground, at 4°31′12″S 101°22′26″E / 4.520°S 101.374°E , about 130 km southwest of Bengkulu on the southwest coast of Sumatra, Indonesia, and some 600 km west-northwest of Indonesia's capital city, Jakarta. The first earthquake occurred at 11:10:26 UTC (18:10 local time) on 12 September 2007, and was an 8.4 Mw[1][2] earthquake on the moment magnitude scale. After further aftershocks above magnitude 5, a third large earthquake, 7.0 Mw, occurred at 03:35:28 UTC (10:35:28 local time) on 13 September. Thailand. The first shock in this earthquake doublet struck with a maximum Mercalli intensity of VIII (Severe) and the second shock that arrived two hours later had a maximum Mercalli intensity of VI (Strong).