4.0

221 km ESE of Attu Station, Alaska

2026-04-10 16:20:44 UTC (19 hours ago)

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Earthquake Details

Magnitude
4.0 mb
Depth
35.0 km
Shallow
Location
51.8160°N
175.9696°E
Intensity (MMI)
2.3
Weak

Technical Information

Event ID
us6000sp6h
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
20
Azimuthal Gap
289.0°
Min Station Distance
1.581°
RMS Residual
1.48 sec
Last Updated
2026-04-10 20:18:47 UTC

Nearby Earthquakes (Last 7 Days)

3.9
226 km ESE of Attu Station, Alaska
20 hours ago · 35.0 km deep
2.5
155 km WNW of Adak, Alaska
21 hours ago · 13.6 km deep
2.8
163 km SW of Adak, Alaska
1 days ago · 6.3 km deep
2.6
75 km SSW of Adak, Alaska
1 days ago · 23.9 km deep
3.7
232 km ESE of Attu Station, Alaska
1 days ago · 25.4 km deep
4.1
215 km ESE of Attu Station, Alaska
2 days ago · 10.0 km deep
4.2
225 km ESE of Attu Station, Alaska
2 days ago · 10.0 km deep
2.7
170 km W of Adak, Alaska
2 days ago · 15.6 km deep
3.7
227 km ESE of Attu Station, Alaska
4 days ago · 10.0 km deep
3.8
236 km ESE of Attu Station, Alaska
4 days ago · 10.0 km deep

Actions

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Location

Alaska
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Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Shallow depth (35.0 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