2.1

M2.1 Earthquake 21 km WNW of Susitna, AlaskaNovember 17, 2024

2024-11-17 22:15:55 UTC (2024-11-17) · approx. 12:15 PM UTC-10 local

MagnitudeM2.1(ml)
Time22:15 UTC12:15 PM UTC-10
Depth65.0 kmshallow crustal
Coordinates61.630°, -150.875°
Felt by1DYFI response
Status✓ Reviewed by USGS

On November 17, 2024 at 22:15 UTC, a magnitude 2.1 shallow crustal earthquake struck 21 km WNW of Susitna, Alaska, at a depth of 65.0 km and coordinates 61.6295°, -150.8748°.

Physical scale: An earthquake of magnitude 2.1 releases seismic energy equivalent to roughly 21.3 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 17 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 61.63°, -150.87°

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 M2.1 earthquake near 21 km WNW of Susitna, Alaska

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

Earthquake Details

Magnitude
2.1 ml
Depth
65.0 km
shallow crustal
Location
61.6295°N
-150.8748°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
ak024esw8mdn
Event Type
earthquake
Status
✓ Reviewed
Significance
68
RMS Residual
0.50 sec
Last Updated
2024-12-20 16:12:00 UTC

Common Questions

How strong was the magnitude 2.1 earthquake near Susitna, Alaska?

The magnitude 2.1 earthquake that struck 21 km WNW of Susitna, Alaska on November 17, 2024 at 22:15 UTC had a depth of 65.0 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 2.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak024esw8mdn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, November 17, 2024). M2.1 Earthquake 21 km WNW of Susitna, AlaskaNovember 17, 2024. Retrieved December 20, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak024esw8mdn/