JAKARTA, September 14 (RIA Novosti) - Indonesia's national meteorology and geophysics department cancelled a tsunami warning announced earlier Friday after another earthquake measuring 6.9 on the Richter scale shook the Sumatran coast.
The earthquake occurred at 1:01 p.m. local time (6:01 a.m. GMT) on the ocean bed, Indonesian seismologists said.
Wednesday's magnitude 8.4 earthquake on the island claimed the lives of 13 people, Indonesia's Antara news agency reported on Friday. The earthquake was followed by up to 50 aftershocks measuring over 4.5 on the Richter scale, of which nine had magnitude of more than six.
Indonesia is located in the seismically active Pacific 'Ring of Fire,' and suffers frequent earthquakes, as well as tsunamis set off by powerful underwater quakes.
On December 26, 2004, an earthquake off the coast of Sumatra measuring 9.0 on the Richter scale generated a huge tsunami that killed more than 275,000 in a dozen nations, the majority in Indonesia's Aceh province.
