Global Seismic Activity Rattles Multiple Regions on 27 November 2025
Several moderate to strong earthquakes struck different parts of the world on Thursday, highlighting a day of heightened seismic activity across Asia, North America, and Europe. The events were recorded by the U.S. Geological Survey (USGS), with the most powerful shaking occurring near western Indonesia.
Indonesia: Strong 6.6 Quake Near Sinabang
A magnitude 6.6 earthquake occurred west-northwest of Sinabang, off the coast of Indonesia’s Simeulue Island. The quake struck in a tectonically active region often affected by movements along the Sunda megathrust. Local authorities have not immediately reported significant damage or casualties, but the strength of the quake suggests that nearby coastal areas likely experienced strong shaking.
United States: 6.0 Earthquake Near Susitna, Alaska
In Alaska, a 6.0-magnitude earthquake hit west-northwest of Susitna, shaking parts of south-central Alaska. The region frequently experiences seismic activity due to the interaction of the Pacific and North American tectonic plates. Despite the moderate strength of the quake, early information indicates no major impact.
Additional Quakes Recorded in Asia and Europe
A series of smaller tremors accompanied the day’s major events, including:
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5.0 magnitude quake southwest of Gunungsitoli, Indonesia
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4.9 magnitude quake southeast of Sarangani, Philippines (recorded twice as two separate events)
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4.8 magnitude quake west of Gunungsitoli, Indonesia
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4.7 magnitude quake northeast of Pánormos, Greece
Although milder, these quakes occurred in regions where even moderate shaking can affect vulnerable structures and trigger localized landslides.
Monitoring Continues
Agencies are monitoring for aftershocks, which are common following earthquakes of this scale. No tsunami alerts have been reported so far. With several quakes occurring across different fault systems, seismologists note that the events appear unrelated but represent typical activity along global plate boundaries.