2.1

M2.1 Earthquake 26 km SW of Tyonek, AlaskaMay 1, 2026

2026-05-01 22:21:12 UTC (2026-05-01) · approx. 12:21 PM UTC-10 local

MagnitudeM2.1(ml)
Time22:21 UTC12:21 PM UTC-10
Depth75.9 kmintermediate depth
Coordinates60.916°, -151.517°
Felt by1DYFI response
Status✓ Reviewed by USGS

On May 1, 2026 at 22:21 UTC, a magnitude 2.1 intermediate depth earthquake struck 26 km SW of Tyonek, Alaska, at a depth of 75.9 km and coordinates 60.9160°, -151.5170°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 21.3 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 17 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 60.92°, -151.52°

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 M2.1 earthquake near 26 km SW of Tyonek, Alaska

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

Earthquake Details

Magnitude
2.1 ml
Depth
75.9 km
intermediate depth
Location
60.9160°N
-151.5170°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
aka2026ipjjdg
Event Type
earthquake
Status
✓ Reviewed
Significance
68
Stations Used
31
Azimuthal Gap
40.0°
Min Station Distance
0.200°
RMS Residual
0.60 sec
Last Updated
2026-05-07 21:02:36 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near Tyonek, Alaska?

The magnitude 2.1 earthquake that struck 26 km SW of Tyonek, Alaska on May 1, 2026 at 22:21 UTC had a depth of 75.9 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 2.1 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. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: aka2026ipjjdg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 1, 2026). M2.1 Earthquake 26 km SW of Tyonek, AlaskaMay 1, 2026. Retrieved May 18, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026ipjjdg/