2.1

M2.1 Earthquake 55 km SE of Perryville, Alaska — October 4, 2021

2021-10-04 19:57:55 UTC (2021-10-04) · approx. 8:57 AM UTC-11 local

MagnitudeM2.1(ml)
Time19:57 UTC≈ 8:57 AM UTC-11
Depth13.7 kmshallow crustal
Coordinates55.546°, -158.552°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 55.55°, -158.55°

Earthquake Details

Magnitude
2.1 ml
Depth
13.7 km
shallow crustal
Location
55.5457°N
-158.5521°E

Technical Information

Event ID
ak021cqfipk8
Event Type
earthquake
Status
✓ Reviewed
Significance
68
RMS Residual
0.41 sec
Last Updated
2021-12-06 19:13:07 UTC

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Actions

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Location

Alaska
View all Alaska earthquakes

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak021cqfipk8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, October 4, 2021). M2.1 Earthquake 55 km SE of Perryville, Alaska — October 4, 2021. Retrieved December 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/ak021cqfipk8/