Alaska earthquakes

M2.8 earthquake 192 km WSW of Adak, Alaska

A magnitude 2.8 earthquake struck 192 km WSW of Adak, Alaska on Mon, Apr 15, 2019, 7:11 AM HADT (16:11 UTC), 57 km (35 mi) below the surface.

A larger quake followed: M6.0 127 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-04-15 16:11:33 UTC
Depth
56.8 km (35.3 mi), shallow
Epicenter
51.447° N, 179.334° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
2.8ML, local (Richter)Alaska Earthquake CenterPreliminary

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 19.7 km horizontally, 23.2 km in depth
Depth from
From location
Station coverage gap
326°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 152 in the 60 days after this one and 56 in the 30 days before it.

After

The first 60 of 152.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003e8i (also filed as ak0194tx0tfl). Read Thu, Oct 1, 2026, 6:09 PM UTC.