3.1

M3.1 Earthquake 53 km NE of King Cove, AlaskaOctober 12, 2024

2024-10-12 17:16:39 UTC (2024-10-12) · approx. 6:16 AM UTC-11 local

MagnitudeM3.1(ml)
Time17:16 UTC6:16 AM UTC-11
Depth158.2 kmintermediate depth
Coordinates55.366°, -161.676°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 12, 2024 at 17:16 UTC, a magnitude 3.1 intermediate depth earthquake struck 53 km NE of King Cove, Alaska, at a depth of 158.2 km and coordinates 55.3660°, -161.6759°.

Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 55.37°, -161.68°

Earthquake Details

Magnitude
3.1 ml
Depth
158.2 km
intermediate depth
Location
55.3660°N
-161.6759°E

Technical Information

Event ID
us7000nu3r
Event Type
earthquake
Status
✓ Reviewed
Significance
148
Stations Used
41
Azimuthal Gap
115.0°
Min Station Distance
0.066°
RMS Residual
0.68 sec
Last Updated
2024-12-23 15:48:22 UTC

Common Questions

How strong was the magnitude 3.1 earthquake near King Cove, Alaska?

The magnitude 3.1 earthquake that struck 53 km NE of King Cove, Alaska on October 12, 2024 at 17:16 UTC had a depth of 158.2 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 3.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000nu3r). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, October 12, 2024). M3.1 Earthquake 53 km NE of King Cove, AlaskaOctober 12, 2024. Retrieved December 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nu3r/