4.0

M4.0 Earthquake 65 km NE of Atka, AlaskaNovember 13, 2024

2024-11-13 19:47:14 UTC (2024-11-13) · approx. 7:47 AM UTC-12 local

MagnitudeM4.0(mb)
Time19:47 UTC7:47 AM UTC-12
Depth236.7 kmintermediate depth
Coordinates52.548°, -173.431°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 13, 2024 at 19:47 UTC, a magnitude 4.0 intermediate depth earthquake struck 65 km NE of Atka, Alaska, at a depth of 236.7 km and coordinates 52.5477°, -173.4311°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 52.55°, -173.43°

Earthquake Details

Magnitude
4.0 mb
Depth
236.7 km
intermediate depth
Location
52.5477°N
-173.4311°E

Technical Information

Event ID
us7000p0id
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
41
Azimuthal Gap
182.0°
Min Station Distance
0.493°
RMS Residual
0.50 sec
Last Updated
2025-01-26 16:31:38 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Atka, Alaska?

The magnitude 4.0 earthquake that struck 65 km NE of Atka, Alaska on November 13, 2024 at 19:47 UTC had a depth of 236.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000p0id). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, November 13, 2024). M4.0 Earthquake 65 km NE of Atka, AlaskaNovember 13, 2024. Retrieved January 26, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000p0id/