M2.7 earthquake 202 km SE of Old Harbor, Alaska
A magnitude 2.7 earthquake struck 202 km SE of Old Harbor, Alaska on Sun, Jun 27, 2021, 7:52 PM AKDT (03:52 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.8 212 km SE of Chiniak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.7 (ml), micro
- Local time
- UTC
- 2021-06-28 03:52:44 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 55.753° N, 151.324° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.7 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 273°, poorly surrounded by stations
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.5215 km SE of Chiniak, Alaska · 1914 days ago · 10 km deep · 97 km away
- 2.7201 km SSE of Chiniak, Alaska · 1900 days ago · 10 km deep · 62 km away
- 2.8212 km SE of Chiniak, Alaska · 1879 days ago · 10 km deep · 97 km away
- 2.7183 km SSE of Old Harbor, Alaska · 1874 days ago · 10 km deep · 24 km away
- 2.8248 km SSE of Old Harbor, Alaska · 1864 days ago · 10 km deep · 79 km away
- 2.2178 km SSE of Old Harbor, Alaska · 1856 days ago · 27 km deep · 60 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000eqip (also filed as ak021883at3y). Read Thu, Sep 24, 2026, 8:38 AM UTC.