2.7

M2.7 Earthquake 24 km NE of Chase, AlaskaJuly 11, 2022

2022-07-11 21:12:59 UTC (2022-07-11) · approx. 11:12 AM UTC-10 local

MagnitudeM2.7(ml)
Time21:12 UTC11:12 AM UTC-10
Depth64.2 kmshallow crustal
Coordinates62.614°, -149.787°
Felt by8DYFI responses
Status✓ Reviewed by USGS

On July 11, 2022 at 21:12 UTC, a magnitude 2.7 shallow crustal earthquake struck 24 km NE of Chase, Alaska, at a depth of 64.2 km and coordinates 62.6143°, -149.7868°.

Physical scale: An earthquake of magnitude 2.7 releases seismic energy equivalent to roughly 169 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 44 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 62.61°, -149.79°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 citizen responses 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 M2.7 earthquake near 24 km NE of Chase, Alaska

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

Earthquake Details

Magnitude
2.7 ml
Depth
64.2 km
shallow crustal
Location
62.6143°N
-149.7868°E
Felt Reports
8
DYFI responses
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
ak0228tvrfpx
Event Type
earthquake
Status
✓ Reviewed
Significance
114
RMS Residual
0.48 sec
Last Updated
2022-09-24 21:25:55 UTC

Common Questions

How strong was the magnitude 2.7 earthquake near Chase, Alaska?

The magnitude 2.7 earthquake that struck 24 km NE of Chase, Alaska on July 11, 2022 at 21:12 UTC had a depth of 64.2 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 2.7 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak0228tvrfpx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 11, 2022). M2.7 Earthquake 24 km NE of Chase, AlaskaJuly 11, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/ak0228tvrfpx/