4.6Light

M 4.6 - 45 km S of Adak, Alaska

45 km S of Adak, Alaska

March 25, 2026 at 1:43 AM UTC

Alaska Earthquakes

Seismic Data

Magnitude
M4.6
Light
Depth
35.0 km
below surface
Coordinates
51.4687ยฐN, 176.6553ยฐW
epicenter
Felt Reports
1
DYFI responses
Max Intensity (CDI)
2.7
Community Internet Intensity
Shakemap MMI
4.3
Modified Mercalli Intensity

About This Earthquake

This was a light earthquake registering M4.6 on the moment magnitude scale. It struck at 45 km S of Adak, Alaska at a depth of 35.0 km below the surface.

1 people submitted felt reports to the USGS Did You Feel It? system, indicating the earthquake was perceptible across a significant area.

The earthquake occurred on March 25, 2026 at 1:43 AM UTC. View the full USGS event page for detailed waveform data, station information, and ShakeMap products: USGS Event us7000s7cn.

Frequently Asked Questions

How strong was the 45 km S of Adak, Alaska earthquake?

This was a light earthquake with a magnitude of 4.6. Earthquakes of this magnitude are felt by many but usually cause little damage.

Where was the 45 km S of Adak, Alaska earthquake felt?

The earthquake occurred at 45 km S of Adak, Alaska at a depth of 35.0 km. A total of 1 people submitted felt reports. This event occurred in or near Alaska.

M4.6 Light Earthquake - 45 km S of Adak, Alaska | USGS