3.7

M3.7 Earthquake 68 km NNE of Atka, AlaskaJune 14, 2026

2026-06-14 09:59:20 UTC (1 day ago) · approx. 9:59 PM UTC-12 local

MagnitudeM3.7(mb)
Time09:59 UTC9:59 PM UTC-12
Depth218.9 kmintermediate depth
Coordinates52.745°, -173.750°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 14, 2026 at 09:59 UTC, a magnitude 3.7 intermediate depth earthquake struck 68 km NNE of Atka, Alaska, at a depth of 218.9 km and coordinates 52.7452°, -173.7505°.

Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 215 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 52.75°, -173.75°

Earthquake Details

Magnitude
3.7 mb
Depth
218.9 km
intermediate depth
Location
52.7452°N
-173.7505°E

Technical Information

Event ID
us7000st8k
Event Type
earthquake
Status
✓ Reviewed
Significance
211
Stations Used
74
Azimuthal Gap
123.0°
Min Station Distance
0.609°
RMS Residual
0.59 sec
Last Updated
2026-06-16 05:38:48 UTC

Common Questions

How strong was the magnitude 3.7 earthquake near Atka, Alaska?

The magnitude 3.7 earthquake that struck 68 km NNE of Atka, Alaska on June 14, 2026 at 09:59 UTC had a depth of 218.9 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 3.7 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: us7000st8k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 14, 2026). M3.7 Earthquake 68 km NNE of Atka, AlaskaJune 14, 2026. Retrieved June 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000st8k/