M6.0 earthquake - 163 km N of Nikolski, Alaska
12847 d ago · 14 Aug 1991, 12:53 UTC 163 km N of Nikolski, Alaska
What happened
A magnitude 6 earthquake struck 163 km N of Nikolski, Alaska on 14 Aug 1991, 12:53 UTC at a depth of 275 km.
Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
Community
Did you feel it?
Nearby in the last 30 days
- 2.2
M2.2 earthquake - 72 km WSW of Nikolski, Alaska
10 km deep
Minor - 0.3
M0.3 earthquake - 11 km WNW of Dutch Harbor, Alaska
5 km deep
Minor - 4.7
M4.7 earthquake - 114 km SSW of Nikolski, Alaska
10 km deepgreen alert
Moderate - 2.6
M2.6 earthquake - 73 km WSW of Nikolski, Alaska
12 km deep
Light - 4.5
M4.5 earthquake - 101 km WSW of Nikolski, Alaska
92 km deep
Moderate - 6.5
M6.5 earthquake - 177 km W of Nikolski, Alaska
98 km deep Tsunami flag
Major