3.0

M3.0 Earthquake 215 km W of Adak, AlaskaApril 6, 2024

2024-04-06 20:59:22 UTC (2024-04-06) · approx. 8:59 AM UTC-12 local

MagnitudeM3.0(ml)
Time20:59 UTC8:59 AM UTC-12
Depth91.1 kmintermediate depth
Coordinates51.733°, -179.754°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 6, 2024 at 20:59 UTC, a magnitude 3.0 intermediate depth earthquake struck 215 km W of Adak, Alaska, at a depth of 91.1 km and coordinates 51.7330°, -179.7539°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.73°, -179.75°

Earthquake Details

Magnitude
3.0 ml
Depth
91.1 km
intermediate depth
Location
51.7330°N
-179.7539°E

Technical Information

Event ID
us6000mw8t
Event Type
earthquake
Status
✓ Reviewed
Significance
138
Stations Used
9
Azimuthal Gap
154.0°
Min Station Distance
0.390°
RMS Residual
0.22 sec
Last Updated
2024-06-12 21:51:48 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Adak, Alaska?

The magnitude 3.0 earthquake that struck 215 km W of Adak, Alaska on April 6, 2024 at 20:59 UTC had a depth of 91.1 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 3.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000mw8t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 6, 2024). M3.0 Earthquake 215 km W of Adak, AlaskaApril 6, 2024. Retrieved June 12, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mw8t/