Indonesia issues tsunami warning after 7.9 quake strikes off Sumatra

© earthquake.usgs.gov

© earthquake.usgs.gov

(SOURCE)   A 7.9 magnitude earthquake has struck off the coast of Indonesia, according to the US Geological Survey (USGS). The country has issued a tsunami warning, the National Meteorolgical Agency reported.

The shallow quake, which hit southwest of the island of Sumatra on Wednesday, had a depth of 10 kilometers (six miles).

The epicenter was located 808 kilometers (502 miles) southwest of Padang.

There were no immediate reports of damage or casualties. However, shallower earthquakes are more likely to cause damage.

 The USGS originally categorized the quake as a magnitude 8.2, and later an 8.1, before lowering it to a 7.9.

In 2004, a 9.1 magnitude earthquake struck 160 kilometers (99 miles) off the western coast of northern Sumatra, resulting in a tsunami.

Indonesia straddles the so-called ‘Pacific Ring of Fire,’ a highly seismically active zone where neighboring tectonic plates violently clash, resulting in a large number of earthquakes and volcanoes.

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