13 August, 2017
According to reports, tremors were felt in Singapore as well.
Indonesia's seismological agency BMKG said the preliminary magnitude of the quake was 6.6, but the United States Geological Survey (USGS) put the initial magnitude slightly lower, at 6.4. There are no reports of damage or casualties, however. Seismologists, however, said there was no risk of tsunami.
National Disaster Mitigation Agency spokesman Sutopo Purwo Nugroho said that the quake was felt for about 10 seconds in coastal cities. "I was carrying my seven-month old granddaughter and I had to run, all the neighbours also ran outside their homes", Hasnah told AFP.
A strong quake struck Sunday off the coast of southern Sumatra in Indonesia, causing panicked residents to run from their homes but no major damage has been reported so far.
Indonesia sits on the Pacific Ring of Fire where tectonic plates collide, causing frequent seismic and volcanic activity.