Alaska earthquakes

M2.5 earthquake 136 km SSE of Perryville, Alaska

A magnitude 2.5 earthquake struck 136 km SSE of Perryville, Alaska on Sat, Jul 14, 2018, 5:53 PM AKDT (01:53 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M4.5 134 km SE of Perryville, Alaska. This one was a foreshock.

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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
UTC
2018-07-15 01:53:19 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
54.765° N, 158.372° 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.ScaleComputed byNotes
2.5ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
2.5ML, local (Richter)Alaska Earthquake CenterPreliminary
2.5ML, local (Richter)AACSEPreliminary

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 4.2 km horizontally, 6.0 km in depth
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 11 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000g9zn (also filed as ak19921358, ak0189068uv6, aacse0189068uv6). Read Fri, Oct 2, 2026, 8:24 AM UTC.