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An earthquake with a revised magnitude of 6.6 has struck 174km north-northwest of the city of Ternate in Indonesia's Molucca islands, but there is thought to be no tsunami risk.
The quake hit early on Monday local time at a depth of 60.5km and was followed by aftershocks of a magnitude of 5.0 to 5.1, the US Geological Survey said.
Search and rescue agency official Samud Sergi said the quakes had not been felt in Ternate.
An emergency disaster agency spokesperson in Tohomon, North Sulawesi said they felt nothing in the area and had heard of no damage or casualties.
An earlier report from the USGS gave the magnitude of the quake at 7 and the depth at 10km.
The Pacific Tsunami Warning Centre said in a statement that, based on available data, there was no current tsunami threat from the event.
The devastated country has been struck by a number of natural disasters in recent months.
Comment: USGS records show that earthquakes worldwide have increased 2,000% since the 1900's and, in just the last year, Alaska, Yellowstone and Iceland are just some of the locations that have shown a startling increase in swarm events. But it's not just earthquakes we have to worry about, there are a variety of other related phenomena including volcanic activity, sinkholes, landslides and fissures.
For more on the possible causes, see:
- Sinkholes: The groundbreaking truth
- Sott Exclusive: Nemesis, not 'Nibiru' - Clarifying mainstream reports about 'a large ninth planet' that periodically sends comets our way
- Worldwide volcanic activity uptick update, and new volcano discovered on Jupiter's moon Io
- Volcanoes are erupting all over the place right now. Scientists have figured out why: A minute slowdown in the planet's rotation
Also check out SOTT radio's Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made? as well as SOTTs' monthly documentary SOTT Earth Changes Summary - December 2018: Extreme Weather, Planetary Upheaval, Meteor Fireballs: