M3.2 Earthquake 13 km NNE of Ta`?, American Samoa — August 23, 2022
2022-08-23 20:20:49 UTC (2022-08-23) · approx. 9:20 AM UTC-11 local
On August 23, 2022 at 20:20 UTC, a magnitude 3.2 shallow crustal earthquake struck 13 km NNE of Ta`?, American Samoa, at a depth of 14.5 km and coordinates -14.1278°, -169.4609°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 951 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 97 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-169.4609°E
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Common Questions
How strong was the magnitude 3.2 earthquake near Ta`?, American Samoa?
The magnitude 3.2 earthquake that struck 13 km NNE of Ta`?, American Samoa on August 23, 2022 at 20:20 UTC had a depth of 14.5 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 3.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000iupr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, August 23, 2022). M3.2 Earthquake 13 km NNE of Ta`?, American Samoa — August 23, 2022. Retrieved November 1, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iupr/