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Great Sumatra fault. The west coast of Sumatra is dominated by the Sunda megathrust; a 5,500 km (3,400 mi) [3] long convergent boundary where the Australian plate subducts beneath the Burma plate and Sunda plate at a rate of 60 mm (2.4 in) per year. [4] The subduction zone offshore Sumatra was responsible for several large earthquakes in 2004 ...
The 2004 Indian Ocean earthquake is thought to have triggered activity in both Leuser Mountain [45] and Mount Talang, [46] volcanoes in Aceh along the same range of peaks, while the 2005 Nias–Simeulue earthquake sparked activity in Lake Toba, a massive caldera in Sumatra.
Image as of a few days after the earthquake. The 2004 Indian Ocean earthquake and tsunami occurred on Sunday, December 26, 2004. The earthquake itself, with a moment magnitude of around 9.2-9.3, devastated Aceh Province, Indonesia, while the tsunami affected countries all around the Indian Ocean. Nations which were affected are listed below in ...
JAKARTA (Reuters) -A magnitude 7.3 earthquake struck west of Indonesia's Sumatra Island on Tuesday, Indonesia's geophysics agency (BMKG) said, triggering a tsunami warning for around two hours.
Although National Oceanic and Atmospheric Administration (NOAA) scientists at the Pacific Tsunami Warning Center (PTWC) in Hawaii eventually issued warnings of a possible tsunami from the large earthquake off Sumatra, the waves outran notification systems at jet speeds of 500 mph (804 km/h), catching hundreds of thousands of people unaware.
The magnitude-9.1 earthquake of Dec. 26, 2004, 150 miles off the coast of the Indonesian island of Sumatra, packed the energy of 23,000 atomic bombs, according to National Geographic.
The first of the 2009 Sumatra earthquakes (Indonesian: Gempa bumi Sumatra 2009) occurred on 30 September off the coast of Sumatra, Indonesia with a moment magnitude of 7.6 at 17:16:10 local time. The epicenter was 45 kilometres (28 mi) west-northwest of Padang , West Sumatra , and 220 kilometres (140 mi) southwest of Pekanbaru , Riau .
Indonesia was the first country to be seriously affected by the earthquake and tsunami created by the 2004 Indian Ocean earthquake on 26 December 2004, swamping the northern and western coastal areas of Sumatra, and the smaller outlying islands off Sumatra.