3.0

M3.0 Earthquake 9 km NNE of Brevig Mission, AlaskaJune 18, 2026

2026-06-18 10:28:05 UTC (31 min ago) · approx. 11:28 PM UTC-11 local

MagnitudeM3.0(ml)
Time10:28 UTC11:28 PM UTC-11
Depth103.6 kmintermediate depth
Coordinates65.408°, -166.403°
Felt byNo felt reports
StatusAutomatic (preliminary)

On June 18, 2026 at 10:28 UTC, a magnitude 3.0 intermediate depth earthquake struck 9 km NNE of Brevig Mission, Alaska, at a depth of 103.6 km and coordinates 65.4080°, -166.4030°.

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 65.41°, -166.40°

Earthquake Details

Magnitude
3.0 ml
Depth
103.6 km
intermediate depth
Location
65.4080°N
-166.4030°E

Technical Information

Event ID
aka2026lzcqbu
Event Type
earthquake
Status
Automatic
Significance
138
Stations Used
7
Azimuthal Gap
263.0°
Min Station Distance
0.800°
RMS Residual
0.90 sec
Last Updated
2026-06-18 10:35:14 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Brevig Mission, Alaska?

The magnitude 3.0 earthquake that struck 9 km NNE of Brevig Mission, Alaska on June 18, 2026 at 10:28 UTC had a depth of 103.6 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 3.0 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: aka2026lzcqbu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 18, 2026). M3.0 Earthquake 9 km NNE of Brevig Mission, AlaskaJune 18, 2026. Retrieved June 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026lzcqbu/