A major earthquake (magnitude 7.7) occurred off the west coast of Sumatra Indonesia on 25th October at 9:42 pm local time. The epicentre was located in the Mentawai Islands, 280 km south of Padang. The focus was at a depth of 20 km and a small tsunami was generated which damaged some boats. Earthquakes of this magnitude can disrupt nearby volcanoes. Volcanoes in the area include Kerinci, Sumbing, Talang, and Marapi.
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