4.1

M4.1 Earthquake 130 km W of Nikolski, AlaskaNovember 24, 2024

2024-11-24 16:43:38 UTC (2024-11-24) · approx. 5:43 AM UTC-11 local

MagnitudeM4.1(mb)
Time16:43 UTC5:43 AM UTC-11
Depth206.8 kmintermediate depth
Coordinates52.949°, -170.802°
Felt by1DYFI response· max MMI 1.7
Status✓ Reviewed by USGS

On November 24, 2024 at 16:43 UTC, a magnitude 4.1 intermediate depth earthquake struck 130 km W of Nikolski, Alaska, at a depth of 206.8 km and coordinates 52.9489°, -170.8020°. The earthquake was reported felt by 1 personacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 1.7 (weak).

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 52.95°, -170.80°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M4.1 earthquake near 130 km W of Nikolski, Alaska

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

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 M4.1 earthquake near 130 km W of Nikolski, Alaska

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

Earthquake Details

Magnitude
4.1 mb
Depth
206.8 km
intermediate depth
Location
52.9489°N
-170.8020°E
Felt Reports
1
DYFI responses
Intensity (MMI)
1.7
weak
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
us6000p7gg
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
35
Azimuthal Gap
145.0°
Min Station Distance
0.476°
RMS Residual
0.42 sec
Last Updated
2025-01-30 17:00:33 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Nikolski, Alaska?

The magnitude 4.1 earthquake that struck 130 km W of Nikolski, Alaska on November 24, 2024 at 16:43 UTC had a depth of 206.8 km. It was felt by 1 person with maximum shaking intensity of MMI 1.7 (weak). 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000p7gg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, November 24, 2024). M4.1 Earthquake 130 km W of Nikolski, AlaskaNovember 24, 2024. Retrieved January 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000p7gg/