March 2007 Sumatra earthquakes

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March 2007 Sumatra earthquakes
March 2007 Sumatra earthquakes is located in Sumatra
March 2007 Sumatra earthquakes
UTC timeDoublet earthquake:    
 2007-03-06 03:49:38
 2007-03-06 05:49:25
ISC event 
 11691339
 11691369
USGS-ANSS 
 ComCat
 ComCat
Local dateMarch 6, 2007 (2007-03-06)
Local time
Magnitude 
 6.4 Mwc[1]
 6.3 Mwc[2]
Epicenter0°29′N 100°30′E / 0.49°N 100.5°E / 0.49; 100.5Coordinates: 0°29′N 100°30′E / 0.49°N 100.5°E / 0.49; 100.5
FaultGreat Sumatran Fault
TypeStrike-slip
Areas affectedIndonesia
Max. intensityVIII (Severe)
Casualties68 fatalities; over 460 serious injuries[3]

The March 2007 Sumatra earthquakes occurred near the northern end of Lake Singkarak in Sumatra, Indonesia, on March 6. 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]

Earthquakes[edit]

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.[4][5] The earthquakes were felt as far away as Singapore and Malaysia, which prompted the evacuation of some buildings there.[6]

Effects[edit]

Over 60 fatalities and 460 serious injuries have been reported, spread across many towns and regencies in West Sumatra.[3] Over 43,000 houses were damaged, with over 12,000 of those severely damaged.[7] The severe damage to other structures includes over 130 public facilities, 310 mosques, 60 government buildings, 370 schools, and 230 shops.[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.[8] The total value of damage is estimated to be around 1.4 trillion Indonesian rupiah (US$160 million).[7]

Response[edit]

A variety of local and international aid organizations have deployed to the region to assist victims. A number of countries have pledged aid, including the Netherlands (US$2.0 million), Sweden (US$1.0 million), Canada (US$0.21 million), Malaysia (US$0.16 million), United States (US$0.1 million) and Taiwan (US$0.06 million). The US AID has supplied them with all sorts of essentials like blankets, water, food and first aid kits.

See also[edit]

References[edit]

  1. ^ ANSS. "Sumatra 2007a". Comprehensive Catalog. U.S. Geological Survey.
  2. ^ ANSS. "Sumatra 2007b". Comprehensive Catalog. U.S. Geological Survey.
  3. ^ a b "Indonesia: Earthquakes West Sumatra Province OCHA Situation Report No. 6" (Press release). United Nations Office for the Coordination of Humanitarian Affairs. 2007-03-16. Retrieved 2007-03-16.
  4. ^ a b USGS. "M6.4 - southern Sumatra, Indonesia". United States Geological Survey.
  5. ^ a b USGS. "M6.3 - southern Sumatra, Indonesia". United States Geological Survey.
  6. ^ "Quakes kill 82 in Indonesia". The Age. 2007-03-06. Retrieved 2007-03-06.
  7. ^ a b c "West Sumatra Earthquake, March 13, 2007 : 17.00 PM" (Press release). West Sumatra Provincial Government. 2007-03-13. Archived from the original on September 27, 2007. Retrieved 2007-03-16.
  8. ^ "Indonesia: Earthquakes West Sumatra Province OCHA Situation Report No. 5" (Press release). United Nations Office for the Coordination of Humanitarian Affairs. 2007-03-12. Retrieved 2007-03-14.

Further reading[edit]

  • M. Nakano, H. Kumagai, S. Toda, R. Ando, T. Yamashina, H. Inoue, Sunarjo; Source model of an earthquake doublet that occurred in a pull-apart basin along the Sumatran fault, Indonesia, Geophysical Journal International, Volume 181, Issue 1, 1 April 2010, Pages 141–153, https://doi.org/10.1111/j.1365-246X.2010.04511.x
  • Natawidjaja, D.H., Tohari, A., Subowo, E., Daryono, M.R. and Boen, T., 2007. Western Sumatra Earthquakes of March 6, 2007, EERI Special Earthquake Report, 1–8

External links[edit]