2.5

M2.5 Earthquake 19 km W of Susitna, AlaskaMay 5, 2026

2026-05-05 22:10:09 UTC (2 days ago) · approx. 12:10 PM UTC-10 local

MagnitudeM2.5(ml)
Time22:10 UTC12:10 PM UTC-10
Depth60.9 kmshallow crustal
Coordinates61.536°, -150.882°
Felt by1DYFI response
Status✓ Reviewed by USGS

On May 5, 2026 at 22:10 UTC, a magnitude 2.5 shallow crustal earthquake struck 19 km W of Susitna, Alaska, at a depth of 60.9 km and coordinates 61.5360°, -150.8820°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 84.8 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 32 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 61.54°, -150.88°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.5 earthquake near 19 km W of Susitna, Alaska

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.5 ml
Depth
60.9 km
shallow crustal
Location
61.5360°N
-150.8820°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
aka2026iwtbux
Event Type
earthquake
Status
✓ Reviewed
Significance
96
Stations Used
78
Azimuthal Gap
25.0°
Min Station Distance
0.500°
RMS Residual
0.70 sec
Last Updated
2026-05-07 22:08:26 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Susitna, Alaska?

The magnitude 2.5 earthquake that struck 19 km W of Susitna, Alaska on May 5, 2026 at 22:10 UTC had a depth of 60.9 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 2.5 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.

Authoritative source: USGS event page (event ID: aka2026iwtbux). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 5, 2026). M2.5 Earthquake 19 km W of Susitna, AlaskaMay 5, 2026. Retrieved May 8, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026iwtbux/