3.5

M3.5 Earthquake 45 km NW of Ninilchik, AlaskaApril 18, 2026

2026-04-18 05:35:49 UTC (3 days ago)

On April 18, 2026 at 05:35 UTC, a magnitude 3.5 intermediate depth earthquake struck 45 km NW of Ninilchik, Alaska, at a depth of 97.6 km and coordinates 60.2910°, -152.3230°.

Map showing earthquake epicenter at 60.29°, -152.32°

Earthquake Details

Magnitude
3.5 ml
Depth
97.6 km
intermediate depth
Location
60.2910°N
-152.3230°E
Felt Reports
2
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
aka2026hovvir
Event Type
earthquake
Status
✓ Reviewed
Significance
189
Stations Used
202
Azimuthal Gap
30.0°
Min Station Distance
0.300°
RMS Residual
0.90 sec
Last Updated
2026-04-18 06:47:43 UTC

Common Questions

How strong was the magnitude 3.5 earthquake near Ninilchik, Alaska?

The magnitude 3.5 earthquake that struck 45 km NW of Ninilchik, Alaska on April 18, 2026 at 05:35 UTC had a depth of 97.6 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.5 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.