M3.3 Earthquake 119 km SSE of Sand Point, Alaska — March 6, 2023
2023-03-06 15:07:43 UTC (2023-03-06) · approx. 4:07 AM UTC-11 local
On March 6, 2023 at 15:07 UTC, a magnitude 3.3 shallow crustal earthquake struck 119 km SSE of Sand Point, Alaska, at a depth of 45.2 km and coordinates 54.3605°, -159.7280°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 114 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-159.7280°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Sand Point, Alaska?
The magnitude 3.3 earthquake that struck 119 km SSE of Sand Point, Alaska on March 6, 2023 at 15:07 UTC had a depth of 45.2 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 3.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000jhn8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, March 6, 2023). M3.3 Earthquake 119 km SSE of Sand Point, Alaska — March 6, 2023. Retrieved May 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jhn8/