Play Video
1
Earthquake Ground Motion Animation 09-12-2007 Sumatra
Earthquake Ground Motion Animation 09-12-2007 Sumatra
::2008/10/02::
Play Video
2
Padang earthquake (Sept 30 2009), Sumatra, Indonesia
Padang earthquake (Sept 30 2009), Sumatra, Indonesia
::2009/09/30::
Play Video
3
Nine Years of Earthquakes in Southeast Asia
Nine Years of Earthquakes in Southeast Asia
::2013/08/01::
Play Video
4
September 2009 Magnitude 7.5 Sumatran Earthquake
September 2009 Magnitude 7.5 Sumatran Earthquake
::2009/10/01::
Play Video
5
2009 Sumatra, Indonesian earthquakes (Building foundations)
2009 Sumatra, Indonesian earthquakes (Building foundations)
::2012/07/31::
Play Video
6
West Sumatra 7.9 Quake Video
West Sumatra 7.9 Quake Video
::2007/09/16::
Play Video
7
2004 Indian Ocean Tsunami Simulation
2004 Indian Ocean Tsunami Simulation
::2013/12/25::
Play Video
8
Devastating Earthquake strikes Sumatra, Indonesia
Devastating Earthquake strikes Sumatra, Indonesia
::2009/10/22::
Play Video
9
Gempa(Earthquake) Sumatera Barat Padang-2
Gempa(Earthquake) Sumatera Barat Padang-2
::2009/10/02::
Play Video
10
vjmcharities...30 September 2009 Padang Sumatra Earthquake
vjmcharities...30 September 2009 Padang Sumatra Earthquake
::2009/10/09::
Play Video
11
World Vision distributes family kits to survivors of the Sumatra Earthquake (2009)
World Vision distributes family kits to survivors of the Sumatra Earthquake (2009)
::2009/10/05::
Play Video
12
Major Earthquake Hits West Sumatra City
Major Earthquake Hits West Sumatra City
::2009/10/01::
Play Video
13
Scary Padang, Indonesia Earthquake Sept 2007
Scary Padang, Indonesia Earthquake Sept 2007
::2009/10/01::
Play Video
14
Sumatra earthquake shakes East Malaysia
Sumatra earthquake shakes East Malaysia
::2011/06/14::
Play Video
15
YouTube Padang earthquake Sept 30 2009 Sumatra Indonesia
YouTube Padang earthquake Sept 30 2009 Sumatra Indonesia
::2009/10/03::
Play Video
16
Tsunami Caught On Camera FULL MOVIE
Tsunami Caught On Camera FULL MOVIE
::2013/02/04::
Play Video
17
The Padang, Indonesia Earthquake of 2009
The Padang, Indonesia Earthquake of 2009
::2011/12/08::
Play Video
18
picture of my hometown after earthquake(padang ,sumatera barat,indonesia)
picture of my hometown after earthquake(padang ,sumatera barat,indonesia)
::2009/10/02::
Play Video
19
Earthquake Cloud, Weird, Sign of Earthquake ? (RE-UPLOAD)
Earthquake Cloud, Weird, Sign of Earthquake ? (RE-UPLOAD)
::2007/11/16::
Play Video
20
earthquakes in pondok west sumatra 2009 part 1
earthquakes in pondok west sumatra 2009 part 1
::2010/08/22::
Play Video
21
Thailand Tsunami 2004
Thailand Tsunami 2004
::2013/11/28::
Play Video
22
Gempa(Earthquake) Sumatera Barat Padang-3
Gempa(Earthquake) Sumatera Barat Padang-3
::2009/10/02::
Play Video
23
earthquakes live in jakarta
earthquakes live in jakarta
::2009/10/10::
Play Video
24
Is there an Earthquake pattern of 188 days or NOT? April 11 - 8.7 mag Sumatra
Is there an Earthquake pattern of 188 days or NOT? April 11 - 8.7 mag Sumatra
::2012/04/09::
Play Video
25
Alidar 2009 Sumatra earthquake victim is given tent by vjmcharities
Alidar 2009 Sumatra earthquake victim is given tent by vjmcharities
::2009/10/31::
Play Video
26
G30S Gempa 30 September Padang - September 30 Earthquake, Padang Part 2/2
G30S Gempa 30 September Padang - September 30 Earthquake, Padang Part 2/2
::2010/05/20::
Play Video
27
Indonesia quake kills 75, thousands trapped
Indonesia quake kills 75, thousands trapped
::2009/09/30::
Play Video
28
Earthquake   2009 - Misteri  Gempa bumi Padang Sumatera Indonesia, Mengunci Lidah Ganyang MALAYSIA
Earthquake 2009 - Misteri Gempa bumi Padang Sumatera Indonesia, Mengunci Lidah Ganyang MALAYSIA
::2009/10/03::
Play Video
29
Beautiful city of Padang destroyed by earthquake
Beautiful city of Padang destroyed by earthquake
::2009/10/02::
Play Video
30
Earthquake Mentawai
Earthquake Mentawai's 13th September
::2007/11/13::
Play Video
31
Earthquake Alert 6.3 Earthquake Kepulauan Mentawai Indonesia
Earthquake Alert 6.3 Earthquake Kepulauan Mentawai Indonesia
::2012/09/14::
Play Video
32
September 7, 1966 Earthquake Rare Footage
September 7, 1966 Earthquake Rare Footage
::2008/03/16::
Play Video
33
Padang Earthquake: The Schools Damage
Padang Earthquake: The Schools Damage
::2009/10/17::
Play Video
34
Earthquake Indonesia in West Sumatera ( Padang )
Earthquake Indonesia in West Sumatera ( Padang )
::2009/10/02::
Play Video
35
Padang earthquake damage
Padang earthquake damage
::2009/10/01::
Play Video
36
Indonesian Earthquake Appeal - STIR our world, donate now to World Vision
Indonesian Earthquake Appeal - STIR our world, donate now to World Vision
::2009/10/04::
Play Video
37
Buildings evacuated damage as powerful earthquake strikes 2009 News
Buildings evacuated damage as powerful earthquake strikes 2009 News
::2013/11/04::
Play Video
38
Indonesia Earthquake Death Toll Soars To More Than 1,000
Indonesia Earthquake Death Toll Soars To More Than 1,000
::2009/09/30::
Play Video
39
Amateur video of people fleeing quake damage 2009 News
Amateur video of people fleeing quake damage 2009 News
::2013/11/04::
Play Video
40
The 2007 Magnitude 8.0 Pisco, Peru Earthquake
The 2007 Magnitude 8.0 Pisco, Peru Earthquake
::2010/09/18::
Play Video
41
pbox Earthquake Opening Slide 3rd
pbox Earthquake Opening Slide 3rd
::2009/12/21::
Play Video
42
Indonesian Earthquake Appeal (World Vision)
Indonesian Earthquake Appeal (World Vision)
::2009/10/04::
Play Video
43
Bengkulu Earthquake Relief 2007
Bengkulu Earthquake Relief 2007
::2007/12/21::
Play Video
44
The last SEVEN 8.0+ Mag Earthquakes fall within the 188 Days window
The last SEVEN 8.0+ Mag Earthquakes fall within the 188 Days window
::2012/04/11::
Play Video
45
Chile Earthquake 2007 footage
Chile Earthquake 2007 footage
::2007/11/14::
Play Video
46
News: Earthquake in Peru 15.08.2007
News: Earthquake in Peru 15.08.2007
::2007/08/16::
Play Video
47
Taiwan 2007-09-07 Earthquake 台灣2007年9月7日地震
Taiwan 2007-09-07 Earthquake 台灣2007年9月7日地震
::2007/09/07::
Play Video
48
Earthquake in Penang
Earthquake in Penang
::2007/10/03::
Play Video
49
3d Earthquake Report (5.4 Indonesia & South of Fiji) 05 September 2010 USGS
3d Earthquake Report (5.4 Indonesia & South of Fiji) 05 September 2010 USGS
::2010/09/05::
Play Video
50
Seattle Earthquake 2001 - Nisqually Quake: A look Back
Seattle Earthquake 2001 - Nisqually Quake: A look Back
::2009/02/27::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
September 2007 Sumatra earthquakes
Sumatra 2007 earthquakes map.gif
Map showing the 3 large quakes and 22 pre and aftershocks in a span of 24 hours.
Date 12 September 2007 (2007-09-12)
Magnitude 8.5 Mw[1][2]
Depth 30 kilometres (19 mi)
Epicenter 4°31′12″S 101°22′26″E / 4.520°S 101.374°E / -4.520; 101.374[1]
Areas affected Indonesia
Singapore
Malaysia
Thailand
Casualties 23 killed[3]

The September 2007 Sumatra earthquakes were a series of megathrust earthquakes that struck the Sunda Trench off the coast of Sumatra, Indonesia, three greater than magnitude 7. A series of tsunami bulletins was issued for the area. The most powerful of the series had a magnitude of 8.5, which makes it in the top 20 of the largest earthquakes ever recorded on a seismograph.

Timeline[edit]

The first earthquake occurred at 11:10:26 UTC (18:10 local time) on 12 September 2007, and was an 8.5 Mw[1][2] earthquake on the moment magnitude scale. 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. It was followed by several earthquakes of magnitude 5 through 6 along the same fault, west of Sumatra.

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). It was centred about 10 km underground, at 2°30′22″S 100°54′22″E / 2.506°S 100.906°E / -2.506; 100.906, 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).

After further aftershocks above magnitude 5, a third earthquake, 7.0 Mw,[5] occurred at 03:35:26 UTC (10:35:26 local time) on 13 September. It was centred about 10 km underground, at 2°09′36″S 99°51′04″E / 2.160°S 99.851°E / -2.160; 99.851, some 165 km south-southwest of Padang and 345 km west-northwest of Bengkulu.

Aftershocks continued into 13 September and 14 September, with more earthquakes ranging up to magnitude 6.4.[6] Most of the aftershocks have been northwest of the original magnitude 8.5 earthquake. A 6.7 struck Southern Sumatra on Sept 20, 2007.

Tidal buoys[7] positioned in the Indian Ocean and other seismic tools have led scientists to issue a series of tsunami bulletins.[8]

Effects[edit]

The tremors of the 8.5 Mw earthquake lasted for several minutes. 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. Tremors felt in Jakarta were described as being "violent".[9] It was reported that several high-rise buildings were evacuated.[10] The earthquake also led to a power outage in Bengkulu, which crippled communications.[10] The death toll of the earthquakes is 21 with 88 people injured.[11]

Tremors were felt in neighbouring countries as far away as Southern Thailand.[12][13] In Singapore, which is about 670 km from the epicenter, the tremor was felt at around 11:10 UTC (19:10 local time).[14] Most of the Central and Eastern part of Singapore has felt the tremor.[15] In Peninsular Malaysia, tremors were reported after 19:15 local time, including Kuala Lumpur, Putrajaya, Johor Bahru, Malacca and Penang. Like Singapore, the tremors were most severe on high-rises, resulting in minor panic and evacuations. No casualties were reported in the country, as of 13 September.[16][17]

Tsunami[edit]

Sea level readings indicated that a tsunami was generated. A total of 4 tsunami alerts were issued in 24 hours. After the first, and largest, earthquake, the Pacific Tsunami Warning Centre issued a tsunami alert for much of the Indian Ocean basin. A tsunami approximately 1 metre high was reported at Padang, Indonesia.[18] A small tsunami, some 15 cm high, was reported at the Cocos Islands.[19] Sumatra was taken off tsunami alert after two hours.

Tsunami warnings were also issued in India and other countries around the Indian Ocean soon after the earthquake. 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.[20] By late 12 September, the tsunami warning was recalled.[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. However, Malaysian authorities had detected a 1-3m high tsunami heading away from the epicenter of the earthquake.[16]

Tectonic summary[edit]

September 2007 Sumatra quake.gif

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. 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. The component of plate motion perpendicular to the boundary produces thrust faulting on the offshore plate-boundary.

The magnitude 7.9 earthquake was also a result of thrust faulting on the same plate boundary. It occurred about 225 km northwest of the magnitude 8.4 earthquake, at the northern end of the aftershock zone.[22]

The magnitude 8.5 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. It was the second most powerful earthquake since the magnitude 9.3 2004 Indian Ocean earthquake, exceeded only by the magnitude 8.6 2005 Sumatra earthquake. The two largest earthquakes were the fourth and fifth earthquakes with magnitude 7.9 or greater to have occurred on or near the plate boundaries offshore of western Sumatra in 7 years, the others being the magnitude 7.9 earthquake of 4 June 2000; the magnitude 9.3 2004 Indian Ocean earthquake on 26 December 2004; and the magnitude 8.6 2005 Sumatra earthquake on 28 March 2005.

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.[23]

See also[edit]

References[edit]

External links[edit]

Coordinates: 4°31′01″S 101°22′55″E / 4.517°S 101.382°E / -4.517; 101.382

 This article incorporates public domain material from websites or documents of the United States Geological Survey.

Wikipedia content is licensed under the GFDL License
Powered by YouTube
LEGAL
  • Mashpedia © 2014