© earthquake.usgs.gov
The 6.1 magnitude quake struck 81 from of the city of Padang Sidempuan, which has a population of over 200,000 people, and 111 kilometers from the city of Sibolga in the western part of Indonesia. The epicenter of the quake was reportedly at a depth of 75 kilometers.
Prelim M6.1 earthquake Nias region, Indonesia Nov-8 09:34 UTC, updates https://t.co/LaKDbpTgkT
— USGS Big Quakes (@USGSBigQuakes) November 8, 2015It was almost immediately followed by another one, with a magnitude of 4.8 on the Richter scale, 147 kilometers from another Indonesian city, Sabang, with over 150,000 residents.
Four hours earlier, a 4.3 magnitude earthquake struck 260 kilometers from the town of Saparua, eastern Indonesia.
Comment: There has been increasing seismic and volcanic activity around Indonesia recently:
- 5.2 magnitude earthquake hits Pandeglang, Indonesia
- 6.4 magnitude earthquake strikes in east Indonesia, no Tsunami alert: USGS
- USGS: Earthquake Magnitude 7.0 - 234 km W of Abepura, Indonesia
- Magnitude 6.0 earthquake strikes off Indonesia, no tsunami threat
- 5 volcanoes in Indonesia erupt simultaneously - Ash clouds force airport closures
- Indonesia's Mount Raung volcano erupts blasting ash, debris 12,460 feet into the air
Keep informed on these increasingly chaotic events by viewing the monthly SOTT Earth Changes Summary.SOTT Earth Changes Summary - September 2015: Extreme Weather, Planetary Upheaval, Meteor-Fireballs