4.1

M4.1 Earthquake near off the coast of WashingtonApril 12, 2026

2026-04-12 15:04:33 UTC (2026-04-12)

On April 12, 2026 at 15:04 UTC, a magnitude 4.1 shallow crustal earthquake struck near off the coast of Washington, at a depth of 10.0 km and coordinates 46.8382°, -129.2136°.

Map showing earthquake epicenter at 46.84°, -129.21°

Earthquake Details

Magnitude
4.1 mb
Depth
10.0 km
shallow crustal
Location
46.8382°N
-129.2136°E

Technical Information

Event ID
us6000sphz
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
23
Azimuthal Gap
247.0°
Min Station Distance
1.089°
RMS Residual
0.43 sec
Last Updated
2026-04-13 18:14:15 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near off the coast of Washington?

The magnitude 4.1 earthquake that struck near off the coast of Washington on April 12, 2026 at 15:04 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.1 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.