Alaska earthquakes

M3.2 earthquake 155 km WNW of Nikolski, Alaska

A magnitude 3.2 earthquake struck 155 km WNW of Nikolski, Alaska on Thu, Jun 14, 2018, 6:46 AM HADT (15:46 UTC), 186 km (115 mi) below the surface.

A larger quake followed: M3.7 120 km W of Nikolski, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
3.2 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-06-14 15:46:17 UTC
Depth
185.6 km (115.3 mi), intermediate-depth
Epicenter
53.342° N, 171.080° 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
3.2ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
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 12.0 km horizontally, 9.7 km in depth
Magnitude uncertainty
±0.15
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000evsa (also filed as ak19783404, ak0187l4vnv9). Read Thu, Oct 1, 2026, 11:23 AM UTC.