M4.4 Earthquake 121 km NNW of Piti Village, Guam — June 17, 2023
2023-06-17 19:17:01 UTC (2023-06-17) · approx. 5:17 AM UTC+10 local
On June 17, 2023 at 19:17 UTC, a magnitude 4.4 shallow crustal earthquake struck 121 km NNW of Piti Village, Guam, at a depth of 10.0 km and coordinates 14.4291°, 144.1570°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
144.1570°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Piti Village, Guam?
The magnitude 4.4 earthquake that struck 121 km NNW of Piti Village, Guam on June 17, 2023 at 19:17 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000kam2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 17, 2023). M4.4 Earthquake 121 km NNW of Piti Village, Guam — June 17, 2023. Retrieved August 21, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kam2/