M4.3 Earthquake 45 km NE of Yigo Village, Guam — August 26, 2023
2023-08-26 16:41:58 UTC (2023-08-26) · approx. 2:41 AM UTC+10 local
On August 26, 2023 at 16:41 UTC, a magnitude 4.3 intermediate depth earthquake struck 45 km NE of Yigo Village, Guam, at a depth of 117.2 km and coordinates 13.8411°, 145.1668°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.1668°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Yigo Village, Guam?
The magnitude 4.3 earthquake that struck 45 km NE of Yigo Village, Guam on August 26, 2023 at 16:41 UTC had a depth of 117.2 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000ksfj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 26, 2023). M4.3 Earthquake 45 km NE of Yigo Village, Guam — August 26, 2023. Retrieved October 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ksfj/