A magnitude 6.5 earthquake was recorded 169 km W of Nikolski, Alaska on Sep 17, 2026, 2:19:52 PM (2026-09-17T14:19:52.210Z). The earthquake occurred at a depth of 98.0 km with coordinates 52.8594, -171.3756.
M6.5 · 98.0 km deep · 1,585 km WSW of Anchorage, United States
Magnitude 6.5 (mww) was reported for this earthquake.
Reported depth: 98.0 km (intermediate, 70–300 km).
The epicentre was 1,585 km WSW of Anchorage, United States.
USGS significance score: 650. USGS calculates this number from magnitude, maximum intensity, felt reports and estimated impact; it is not a risk rating.
No felt reports or intensity data have been published for this event.
General information: magnitude measures the energy released at the source on a logarithmic scale — each whole number is roughly 32 times more energy. Depth is how far below the surface the rupture began. Whether an earthquake is felt, and how strongly, depends on many factors and is best shown by felt reports and intensity data.
The epicentre was located at 52.8594 latitude and -171.3756 longitude, 169 km W of Nikolski, Alaska. The earthquake was intermediate-depth at 98.0 km depth.
More earthquakes in Alaska
Data source: USGS Earthquake Hazards Program event page. Earthquake data is collected from multiple seismic agencies, including the USGS, GeoNet, BMKG and the British Geological Survey (BGS).
Data source: USGS Earthquake Hazards Program. Enable JavaScript for the live interactive map.