2.5

M2.5 Earthquake 45 km NW of Elfin Cove, AlaskaFebruary 10, 2022

2022-02-10 23:48:07 UTC (2022-02-10) · approx. 2:48 PM UTC-9 local

MagnitudeM2.5(ml)
Time23:48 UTC2:48 PM UTC-9
Depth1.0 kmshallow crustal
Coordinates58.464°, -136.931°
Felt by1DYFI response
Status✓ Reviewed by USGS

On February 10, 2022 at 23:48 UTC, a magnitude 2.5 shallow crustal earthquake struck 45 km NW of Elfin Cove, Alaska, at a depth of 1.0 km and coordinates 58.4638°, -136.9306°.

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 58.46°, -136.93°

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 45 km NW of Elfin Cove, Alaska

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

Earthquake Details

Magnitude
2.5 ml
Depth
1.0 km
shallow crustal
Location
58.4638°N
-136.9306°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000gjv0
Event Type
ice quake
Status
✓ Reviewed
Significance
96
Azimuthal Gap
158.0°
Min Station Distance
0.624°
RMS Residual
0.47 sec
Last Updated
2022-04-19 17:39:47 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Elfin Cove, Alaska?

The magnitude 2.5 earthquake that struck 45 km NW of Elfin Cove, Alaska on February 10, 2022 at 23:48 UTC had a depth of 1.0 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: us7000gjv0). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, February 10, 2022). M2.5 Earthquake 45 km NW of Elfin Cove, AlaskaFebruary 10, 2022. Retrieved April 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gjv0/