Alaska earthquakes

M2.5 earthquake 55 km NE of Cold Bay, Alaska

A magnitude 2.5 earthquake struck 55 km NE of Cold Bay, Alaska on Tue, Aug 30, 2016, 3:54 PM AKDT (23:54 UTC), 179 km (111 mi) below the surface.

A larger quake followed: M4.7 40 km NNE of King Cove, Alaska. This one was a foreshock.

King Cove forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.5 (ML, local (Richter)), micro
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Aug 30, 2016, 3:54 PM AKDT
UTC: 2016-08-30 23:54:05 UTC
Depth: 179.0 km (111.2 mi), intermediate-depth
Epicenter: 55.566° N, 162.161° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.5	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.115 · 10 stations
2.5	ML, local (Richter)	Alaska Earthquake Center	Preliminary

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 13.3 km horizontally, 7.9 km in depth
Magnitude uncertainty: ±0.12
Station coverage gap: 223°, poorly surrounded by stations
Stations used: 15

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

King Cove, AlaskaPopulation 1,009. Forecast57 kmN

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 12 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10006npu (also filed as ak016b69lvyt, ak13931568). Read Sun, Oct 4, 2026, 8:11 PM UTC.