M3.9 Earthquake 34 km NNW of Piti Village, Guam — August 30, 2022
2022-08-30 19:00:22 UTC (2022-08-30) · approx. 5:00 AM UTC+10 local
On August 30, 2022 at 19:00 UTC, a magnitude 3.9 intermediate depth earthquake struck 34 km NNW of Piti Village, Guam, at a depth of 144.3 km and coordinates 13.7370°, 144.5493°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
144.5493°E
Technical Information
Common Questions
How strong was the magnitude 3.9 earthquake near Piti Village, Guam?
The magnitude 3.9 earthquake that struck 34 km NNW of Piti Village, Guam on August 30, 2022 at 19:00 UTC had a depth of 144.3 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 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000i611). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, August 30, 2022). M3.9 Earthquake 34 km NNW of Piti Village, Guam — August 30, 2022. Retrieved November 6, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i611/