M5.0 Earthquake 91 km ESE of Yigo Village, Guam — January 28, 2023
2023-01-28 05:02:34 UTC (2023-01-28) · approx. 3:02 PM UTC+10 local
On January 28, 2023 at 05:02 UTC, a magnitude 5.0 shallow crustal earthquake struck 91 km ESE of Yigo Village, Guam, at a depth of 10.0 km and coordinates 13.1191°, 145.6150°. This earthquake was detected by 50 seismic stations with good location accuracy and was assigned a USGS significance rating of 385, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
145.6150°E
Technical Information
Common Questions
How strong was the magnitude 5.0 earthquake near Yigo Village, Guam?
The magnitude 5.0 earthquake that struck 91 km ESE of Yigo Village, Guam on January 28, 2023 at 05:02 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 13.1191°, 145.6150°, which is 91 km ESE of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000jjxp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 28, 2023). M5.0 Earthquake 91 km ESE of Yigo Village, Guam — January 28, 2023. Retrieved January 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000jjxp/