2.7

M2.7 Earthquake 7 km SW of South Van Horn, AlaskaNovember 27, 2022

2022-11-27 19:56:33 UTC (2022-11-27) · approx. 9:56 AM UTC-10 local

Felt by 22 people across nearby locations.

MagnitudeM2.7(ml)
Time19:56 UTC9:56 AM UTC-10
Depth28.4 kmshallow crustal
Coordinates64.762°, -147.892°
Felt by22DYFI responses
Status✓ Reviewed by USGS

On November 27, 2022 at 19:56 UTC, a magnitude 2.7 shallow crustal earthquake struck 7 km SW of South Van Horn, Alaska, at a depth of 28.4 km and coordinates 64.7620°, -147.8915°.

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.

The epicenter is located in Alaska, a region characterized by Pacific Plate subduction beneath the North American Plate, producing frequent megathrust and crustal earthquakes along the Aleutian arc. The nearest mapped fault system is the Aleutian megathrust. View all earthquakes in Alaska.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 64.76°, -147.89°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 22 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 7 km SW of South Van Horn, Alaska

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

Earthquake Details

Magnitude
2.7 ml
Depth
28.4 km
shallow crustal
Location
64.7620°N
-147.8915°E
Felt Reports
22
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
ak022f7qj6no
Event Type
earthquake
Status
✓ Reviewed
Significance
119
RMS Residual
0.61 sec
Last Updated
2023-02-05 23:24:23 UTC

Common Questions

How strong was the magnitude 2.7 earthquake near South Van Horn, Alaska?

The magnitude 2.7 earthquake that struck 7 km SW of South Van Horn, Alaska on November 27, 2022 at 19:56 UTC had a depth of 28.4 km. For context, this was a minor earthquake typically detected only by instruments.

Where did the earthquake occur?

The earthquake epicenter was located at 64.7620°, -147.8915°, which is 7 km SW of South Van Horn, Alaska. View all earthquakes in Alaska.

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.

Has Alaska had earthquakes this big before?

The largest recorded earthquake in Alaska was the M9.2 Great Alaska earthquake of March 27, 1964. Today's magnitude 2.7 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: ak022f7qj6no). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, November 27, 2022). M2.7 Earthquake 7 km SW of South Van Horn, AlaskaNovember 27, 2022. Retrieved February 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak022f7qj6no/