M3.1 Earthquake 35 km E of Skwentna, Alaska — March 22, 2024
2024-03-22 18:30:12 UTC (2024-03-22) · approx. 8:30 AM UTC-10 local
On March 22, 2024 at 18:30 UTC, a magnitude 3.1 shallow crustal earthquake struck 35 km E of Skwentna, Alaska, at a depth of 59.7 km and coordinates 61.9847°, -150.7220°.
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.
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.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Earthquake Details
-150.7220°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Skwentna, Alaska?
The magnitude 3.1 earthquake that struck 35 km E of Skwentna, Alaska on March 22, 2024 at 18:30 UTC had a depth of 59.7 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.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak0243rwypu2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 22, 2024). M3.1 Earthquake 35 km E of Skwentna, Alaska — March 22, 2024. Retrieved May 27, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak0243rwypu2/