223 km ESE of Attu Station, Alaska

2026-03-04 17:54:36 UTC (2026-03-04)

green Alert— PAGER estimated impact level

Tsunami Warning Issued

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Earthquake Details

Magnitude

6.4 mww

Depth

10.0 km

Shallow

Location

52.3107°N
176.3577°E

Intensity (MMI)

6.0

Very Strong

Community Intensity

1.0

CDI from reports

Technical Information

Event ID

us7000s211

Event Type

earthquake

Status

✓ Reviewed

Significance

630

Stations Used

156

Azimuthal Gap

37.0°

Min Station Distance

1.373°

RMS Residual

0.75 sec

Last Updated

2026-04-01 18:04:42 UTC

Nearby Earthquakes (Last 7 Days)

4.5

Rat Islands, Aleutian Islands, Alaska

5 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

4.0

294 km SE 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

2.5

47 km SSW of Adak, Alaska

1 days ago · 19.1 km deep

3.1

78 km SSW of Adak, Alaska

3 days ago · 28.9 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

Actions

View on USGS Did You Feel It?

Location

Alaska

View all Alaska earthquakes

Understanding This Data

Magnitude 6.4 earthquakes are considered strong and can cause significant 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