USGS Revises Nikolski Earthquake Magnitude to 6.3 After Review
The United States Geological Survey has updated the magnitude of the September 3 earthquake near Nikolski, Alaska, following a review.
3 reports on this incident · first at Sep 3, 2026, 7:45 a.m. ET
Earthquake records are revised. Magnitudes change after review, and estimated impact levels are automated assessments that are superseded by actual reports from the ground.
We last searched for new coverage of this at Sep 3, 2026, 8:09 a.m. ET — checked 3h ago.
Earlier reports
Sep 3, 2026, 7:50 a.m. ET
Tsunami Information Statement Issued After 6.3 Magnitude Earthquake Near Nikolski, Alaska
A tsunami information statement has been issued for the area 65 miles SW of Nikolski, Alaska, and for the Scotia Sea, following a magnitude 6.3 earthquake on September 3, 2026, according to the United States Geological Survey (USGS). An information statement means there is no tsunami threat.
The earthquake occurred at 11:17:24 UTC, 84 km SSW of Nikolski, Alaska, at a shallow depth of 35 km, the USGS reported. The agency recorded an instrument intensity of 3.7 and noted two felt reports. The USGS has flagged the event for tsunami evaluation.
Sep 3, 2026, 7:45 a.m. ETFirst report
Magnitude 6.3 Earthquake Strikes Near Nikolski, Alaska
A magnitude 6.3 earthquake struck 84 km SSW of Nikolski, Alaska, on September 3, 2026, at approximately 11:17 UTC, according to the United States Geological Survey (USGS). The quake had a shallow depth of 35 km and was recorded with an instrument intensity of 3.7. The USGS reported two felt reports and a community intensity of 5.
The USGS has flagged the event for tsunami evaluation. Information statements were issued for areas 65 miles SW of Nikolski, Alaska, and for the Scotia Sea, according to the USGS. The statements indicate that no tsunami threat is expected, but evaluation is ongoing.
The earthquake's magnitude has been reviewed by the USGS. Further details are developing as the event is assessed.
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Revision history
- Version 13 Sept 2026, 11:45current
First published.
- Version 13 Sept 2026, 11:52current
First published.
- Version 13 Sept 2026, 11:50current
First published.
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