294 km SE of Attu Station, Alaska

2026-04-03 09:21:20 UTC (1 days ago)

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Earthquake Details

Magnitude

4.0 mb

Depth

10.0 km

Shallow

Location

50.6837°N
175.6573°E

Intensity (MMI)

1.3

Not felt

Technical Information

Event ID

us6000smbc

Event Type

earthquake

Status

✓ Reviewed

Significance

246

Stations Used

Azimuthal Gap

230.0°

Min Station Distance

2.193°

RMS Residual

0.69 sec

Last Updated

2026-04-03 14:52:03 UTC

Nearby Earthquakes (Last 7 Days)

4.5

Rat Islands, Aleutian Islands, Alaska

8 hours ago · 40.7 km deep

4.6

220 km ESE of Attu Station, Alaska

1 days ago · 35.0 km deep

4.2

232 km ESE of Attu Station, Alaska

1 days ago · 10.0 km deep

5.1

223 km ESE of Attu Station, Alaska

1 days ago · 10.0 km deep

4.0

232 km ESE of Attu Station, Alaska

1 days ago · 40.2 km deep

2.6

Rat Islands, Aleutian Islands, Alaska

4 days ago · 31.4 km deep

2.9

Rat Islands, Aleutian Islands, Alaska

4 days ago · 35.0 km deep

4.4

248 km ESE of Attu Station, Alaska

5 days ago · 28.5 km deep

2.9

235 km ESE of Attu Station, Alaska

5 days ago · 6.4 km deep

2.6

219 km WSW of Adak, Alaska

5 days ago · 8.1 km deep

Actions

View on USGS Did You Feel It?

Location

Alaska

View all Alaska earthquakes

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Shallow depth (10.0 km): Shallow earthquakes often cause more damage at the surface.

Learn more about magnitude →

Be Prepared

Earthquakes can happen without warning. Make sure you know what to do.

→ What to do during an earthquake → Create an emergency plan → Emergency kit essentials