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Indonesia lies between the Pacific Ring of Fire along the north-eastern islands adjacent to New Guinea, and the Alpide belt that runs along the south and west from Sumatra, Java, Bali, Flores to Timor. The 2002 Sumatra earthquake is believed to have been a foreshock, preceding the main event by over two years. [34]
Map of earthquakes in Indonesia 1900– 2004. 1833. 2005. 1861. ... 2009 Sumatra earthquakes. August 2018 Lombok earthquake. 2018 Sulawesi earthquake and tsunami.
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 .
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 rupture area of this earthquake is situated within the southern segment, where historical earthquakes include the earthquake of 1797 and the M w ~ 9.0 1833 Sumatra earthquake. [1] [10] Unlike in 2004, the tsunami caused by the October 2010 earthquake did not propagate westwards and other Indian Ocean nations were unaffected.
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.
The first earthquake occurred at 11:10:26 UTC (18:10 local time) on 12 September 2007, and was an 8.4 M w earthquake on the moment magnitude scale. [2] It had a focal depth of 34 km, at , 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 2005 Nias–Simeulue earthquake occurred on 28 March off the west coast of northern Sumatra, Indonesia in the subduction zone of the Sunda megathrust. At least 915 people were killed, mostly on the island of Nias .