M4.6 Earthquake 153 km E of Yigo Village, Guam — October 26, 2023
2023-10-26 22:28:43 UTC (2023-10-26) · approx. 8:28 AM UTC+10 local
On October 26, 2023 at 22:28 UTC, a magnitude 4.6 shallow crustal earthquake struck 153 km E of Yigo Village, Guam, at a depth of 10.0 km and coordinates 13.5182°, 146.3101°. This earthquake was detected by 34 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
146.3101°E
Technical Information
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Common Questions
How strong was the magnitude 4.6 earthquake near Yigo Village, Guam?
The magnitude 4.6 earthquake that struck 153 km E of Yigo Village, Guam on October 26, 2023 at 22:28 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.5182°, 146.3101°, which is 153 km E of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000l7vn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 26, 2023). M4.6 Earthquake 153 km E of Yigo Village, Guam — October 26, 2023. Retrieved January 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l7vn/