2.0

M2.0 Earthquake 8 km NE of Badger, AlaskaAugust 22, 2021

2021-08-22 21:39:14 UTC (2021-08-22) · approx. 11:39 AM UTC-10 local

MagnitudeM2.0(ml)
Time21:39 UTC11:39 AM UTC-10
Depth15.2 kmshallow crustal
Coordinates64.844°, -147.386°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 22, 2021 at 21:39 UTC, a magnitude 2.0 shallow crustal earthquake struck 8 km NE of Badger, Alaska, at a depth of 15.2 km and coordinates 64.8436°, -147.3862°.

Physical scale: An earthquake of magnitude 2.0 releases seismic energy equivalent to roughly 15.1 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 14 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 64.84°, -147.39°

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 M2.0 earthquake near 8 km NE of Badger, Alaska

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

Earthquake Details

Magnitude
2.0 ml
Depth
15.2 km
shallow crustal
Location
64.8436°N
-147.3862°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
ak021archpaw
Event Type
earthquake
Status
✓ Reviewed
Significance
62
RMS Residual
0.32 sec
Last Updated
2021-11-02 14:54:30 UTC

Common Questions

How strong was the magnitude 2.0 earthquake near Badger, Alaska?

The magnitude 2.0 earthquake that struck 8 km NE of Badger, Alaska on August 22, 2021 at 21:39 UTC had a depth of 15.2 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 2.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak021archpaw). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, August 22, 2021). M2.0 Earthquake 8 km NE of Badger, AlaskaAugust 22, 2021. Retrieved November 2, 2021 from https://www.earthquaketracker.org/earthquakes/event/ak021archpaw/