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2013 Aceh earthquake
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Earthquake in Aceh Province, Indonesia
July 2022
July 2022
2013 Aceh earthquake 2013-07-02 07:37:02 usb000i4re 603173687 Indonesia Sumatra 2013 07 02 y 2:37pm (UTC+7) 15 seconds 6.1 Mw 10 km mi 0 on 4.698 N 96.687 E region:ID_type:event inline,title Strike-slip Indonesia 4,292 houses damaged"Death toll in Indonesia quake rises to 35; rescuers search for missing", CNN, 6 July 2013 VIRILIS PERS DAMPAK DAN PENANGANAN BENCANA GEMPA BUMI 6,2 SR DI BENER MERIAH DAN ACEH TENGAH, Badan Nasional Penanggulangan Bencana, July 3, 2013 Yes 4.3, 5.5, 5.2 Mw 43 dead, 6 missing,BNBP September 2013 Gema BNBP https://bnpb.go.id/uploads/migration/pubs/587.pdf 40–41 Indonesian 2 July 2022 5 July 2022 https://web.archive.org/web/20220705112641/https://bnpb.go.id/uploads/migration/pubs/587.pdf dead 2,532 injured
On 2 July 2013, an earthquake struck the Indonesian island of Sumatra with a moment magnitude of 6.1 and a maximum Mercalli intensity of VI (Strong). The strike-slip earthquake killed at least 43 people and injured more than 2,500 othersOCHA 19 July 2013 Indonesia: Aceh Tengah Earthquake Situation Report – 19 July 2013 https://reliefweb.int/attachments/4e4bf7be-e4f1-3df5-861c-aa1cf2b50707/Indonesia%20Sitrep%20no%2003-July%202013%20Aceh%20Tengah%2C%20Aceh%20Earthquake.pdf 2 July 2022 in the province of Aceh (on the northern end of Sumatra) where approximately 4,300 homes were damaged or destroyed.
Background
Earthquakes are common in Sumatra as it lies at the convergent boundary where the Sunda plate is subducting beneath the Indo-Australian plate. The plates are converging obliquely at a rate of 60 mm per year and the right lateral component is accommodated by strike-slip faulting within Sumatra, mainly on the Great Sumatran fault. In 2004, Sumatra was devastated by the Sumatra–Andaman earthquake and resulting tsunami that killed tens of thousands in the area and 230,000 people around the Indian Ocean. In 2009, an earthquake near Padang on Sumatra killed more than 1,000. In April 2012, an 8.6-magnitude quake killed five people in Aceh.
Earthquake characteristics
At 2:37pm local time (07:37 UTC) on 2 July 2013, a 6.1 magnitude earthquake struck at a depth of 10 km mi with an epicenter near Sumatra's northwestern tip, 55 km mi south of Bireun.https://earthquake.usgs.gov/earthquakes/eventpage/usb000i4re#summary M6.1 – 55 km S of Bireun, Indonesia United States Geological Survey 3 July 2013 3 July 2013 The quake lasted approximately 15 seconds and was felt from regional capital Banda Aceh to Bener Meriah. The quake was powerful enough to cause concern in Banda Aceh, 320 mi km from the epicenter, and shaking was felt as far as Malaysia. At least fifteen aftershocks occurred, with three powerful ones registering magnitudes of 4.3, 5.5 and 5.2.USGS – two further earthquakes https://earthquake.usgs.gov/earthquakes/map/ United States Geological Survey 3 July 2013
The earthquake had a strike-slip mechanism involving either left lateral slip on a SW-NE trending fault or right lateral slip on a NW-SE trending fault. Analysis of the aftershock distribution and GPS data highlighted two fault segments, the right lateral Pantan Terong segment and the previously unrecognised left lateral Celala segment, both forming part of the overall Great Sumatran fault system. The best-fit model indicates that the Celala segment was responsible for the earthquake,Gunawan Endra Widiyantoro Sri Rosalia Shindy Daryono Mudrik Rahmawan Meilano Irwan Supendi Pepen Ito Takeo Tabei Takao Kimata Fumiaki Ohta Yusaku Ismail Nazli Coseismic Slip Distribution of the 2 July 2013 Mw 6.1 Aceh, Indonesia, Earthquake and Its Tectonic Implications Bulletin of the Seismological Society of America 108 4 2018-06-05 0037-1106 10.1785/0120180035 1918–1928 2018BuSSA.108.1918G 135420370 although aftershocks and some of the post-seismic slip occurred on the Pantan Terong segment.Gunawan Endra Widiyantoro Sri Meilano Irwan Pratama Cecep Postseismic deformation following the 2 July 2013 M 6.1 Aceh, Indonesia, earthquake estimated using GPS data Journal of Asian Earth Sciences 177 2019 1367-9120 10.1016/j.jseaes.2019.03.020 146–151 2019JAESc.177..146G 134984084
Damage
thumb|left|A damaged house
As of 19 July, the official death toll stood at 43, with six people still missing. A further 2,532 people were injured. The Bener Meriah and Central Aceh districts were hardest hit by the quake.Quake in Indonesia kills 22, injures more than 200 Jethro Mullen Kathy Quiano CNN https://edition.cnn.com/2013/07/02/world/asia/indonesia-earthquake/ 3 July 2013 3 July 2013
In Bener Meriah, eight deaths were reported. More than 100 people were hospitalized due to their injuries and 537 houses were badly damaged in the district. A further 252 houses suffered minor damage.Aceh earthquake death toll reaches 35 The Jakarta Post 5 July 2013 http://www.thejakartapost.com/news/2013/07/05/aceh-earthquake-death-toll-reaches-35.html 5 July 2013 Several hundred residents slept outdoors the night of 2 July, afraid to return to their homes for fear of aftershocks. "There were strong aftershocks last night and people didn’t want to go back home, so they stayed in the open overnight," commented an official, "but we don’t have enough tents".42 Reported Dead in Aceh as Rescue Crews Search Earthquake Wreckage 3 July 2013 Jakarta Globe Nurdin Hasan Fikri Ramadhavi Muhammad Hamzah http://www.thejakartaglobe.com/news/31-reported-dead-in-aceh-as-rescue-crews-search-earthquake-wreckage/ 3 July 2013
In Central Aceh, 35 deaths were reported. A mosque collapse killed six children and trapped 14 others. Rescuers dug through the rubble throughout the night of 2–3 July, but did not locate any of the trapped children. Numerous landslides occurred in the district and 1,368 houses were destroyed. A further 2,135 houses suffered minor damaged. On 3 July, a local official commented "People are still frightened, especially after the aftershocks last night. Nobody dared to stay at home. Everyone slept on the roads or in car parks." The main hospital was overcrowded with patients, causing tents to be set up outside to handle the overflow.
Response
A government plane and helicopter were sent in to assist local police and soldiers in rescue efforts.22 Indonesians killed, over 200 injured in Aceh quake Xinhua News Agency 3 July 2013 http://news.xinhuanet.com/english/world/2013-07/03/c_132507476.htm https://web.archive.org/web/20130704140528/http://news.xinhuanet.com/english/world/2013-07/03/c_132507476.htm dead 4 July 2013 3 July 2013 Several roads were destroyed in the quake or blocked by landslides, hampering rescue efforts.Rescue after deadly earthquake in Indonesia's Aceh 3 July 2013 BBC https://www.bbc.co.uk/news/world-23141479 3 July 2013 Power and cell phone tower outages made communications difficult. Three truckloads of bottled water, food, and other supplies were dispatched to the region. The Aceh Disaster Mitigation Office said more help would be provided when they had better data on what was needed.
On 3 July 40 billion rupiah (approximately US$4 million) was allocated for emergency relief efforts. A one-week emergency response period, which can be extended if necessary, was enacted in Bener Meriah.Indonesia imposes week emergency response period in Aceh earthquake Xinhua News Agency 3 July 2013 http://news.xinhuanet.com/english/world/2013-07/03/c_132509344.htm https://web.archive.org/web/20130711075140/http://news.xinhuanet.com/english/world/2013-07/03/c_132509344.htm dead 11 July 2013 3 July 2013 Five shelters were set up in Bener Meriah and 10 in Central Aceh.
See also
List of earthquakes in 2013
List of earthquakes in Indonesia
Indonesia
References
Further reading
Prasetyo Retno Agung Heryandoko Nova Source mechanism analysis of central Aceh earthquake July 2, 2013 Mw 6.2 using moment tensor inversion with BMKG waveform data AIP Conference Proceedings AIP Publishing LLC 2015 1657 030020 0094-243X 10.1063/1.4915028
External links
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Category:Earthquakes in Sumatra
Category:2013 disasters in Indonesia
Category:Earthquakes in Indonesia
Category:2010s in Aceh
Category:July 2013 in Indonesia