3.0

M3.0 Earthquake 116 km ESE of Chiniak, AlaskaApril 7, 2026

2026-04-07 17:11:02 UTC (2026-04-07) · approx. 7:11 AM UTC-10 local

MagnitudeM3.0(ml)
Time17:11 UTC7:11 AM UTC-10
Depth34.0 kmshallow crustal
Coordinates57.176°, -150.523°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 7, 2026 at 17:11 UTC, a magnitude 3.0 shallow crustal earthquake struck 116 km ESE of Chiniak, Alaska, at a depth of 34.0 km and coordinates 57.1760°, -150.5230°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 57.18°, -150.52°

Earthquake Details

Magnitude
3.0 ml
Depth
34.0 km
shallow crustal
Location
57.1760°N
-150.5230°E

Technical Information

Event ID
aka2026gvnxgx
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
67
Azimuthal Gap
192.0°
Min Station Distance
1.300°
RMS Residual
0.60 sec
Last Updated
2026-06-20 17:05:29 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Chiniak, Alaska?

The magnitude 3.0 earthquake that struck 116 km ESE of Chiniak, Alaska on April 7, 2026 at 17:11 UTC had a depth of 34.0 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 3.0 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.

Authoritative source: USGS event page (event ID: aka2026gvnxgx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 7, 2026). M3.0 Earthquake 116 km ESE of Chiniak, AlaskaApril 7, 2026. Retrieved June 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026gvnxgx/