3.1

M3.1 Earthquake 48 km SSE of Nelchina, AlaskaJuly 10, 2026

2026-07-10 20:47:03 UTC (29 min ago) · approx. 10:47 AM UTC-10 local

MagnitudeM3.1(ml)
Time20:47 UTC10:47 AM UTC-10
Depth8.5 kmshallow crustal
Coordinates61.607°, -146.345°
Felt byNo felt reports
StatusAutomatic (preliminary)

On July 10, 2026 at 20:47 UTC, a magnitude 3.1 shallow crustal earthquake struck 48 km SSE of Nelchina, Alaska, at a depth of 8.5 km and coordinates 61.6070°, -146.3450°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 61.61°, -146.34°

Earthquake Details

Magnitude
3.1 ml
Depth
8.5 km
shallow crustal
Location
61.6070°N
-146.3450°E

Technical Information

Event ID
aka2026nontgz
Event Type
earthquake
Status
Automatic
Significance
148
Stations Used
130
Azimuthal Gap
20.0°
Min Station Distance
0.200°
RMS Residual
1.40 sec
Last Updated
2026-07-10 21:00:36 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near Nelchina, Alaska?

The magnitude 3.1 earthquake that struck 48 km SSE of Nelchina, Alaska on July 10, 2026 at 20:47 UTC had a depth of 8.5 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 3.1 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.

Understanding This Data

Magnitude 3.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026nontgz). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 10, 2026). M3.1 Earthquake 48 km SSE of Nelchina, AlaskaJuly 10, 2026. Retrieved July 10, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026nontgz/