2.5

M2.5 Earthquake 13 km NNE of Fox River, AlaskaAugust 17, 2026

2026-08-17 06:50:05 UTC (12 hours ago) · approx. 8:50 PM UTC-10 local

MagnitudeM2.5(ml)
Time06:50 UTC8:50 PM UTC-10
Depth15.5 kmshallow crustal
Coordinates59.967°, -150.871°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 17, 2026 at 06:50 UTC, a magnitude 2.5 shallow crustal earthquake struck 13 km NNE of Fox River, Alaska, at a depth of 15.5 km and coordinates 59.9670°, -150.8710°.

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 59.97°, -150.87°

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 13 km NNE of Fox River, Alaska

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

Earthquake Details

Magnitude
2.5 ml
Depth
15.5 km
shallow crustal
Location
59.9670°N
-150.8710°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
aka2026qfqrdq
Event Type
earthquake
Status
✓ Reviewed
Significance
96
Stations Used
18
Azimuthal Gap
76.0°
Min Station Distance
0.200°
RMS Residual
0.70 sec
Last Updated
2026-08-17 19:24:08 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Fox River, Alaska?

The magnitude 2.5 earthquake that struck 13 km NNE of Fox River, Alaska on August 17, 2026 at 06:50 UTC had a depth of 15.5 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 2.5 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: aka2026qfqrdq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 17, 2026). M2.5 Earthquake 13 km NNE of Fox River, AlaskaAugust 17, 2026. Retrieved August 17, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026qfqrdq/