M4.9 Earthquake 77 km ESE of Yigo Village, Guam — June 8, 2023
2023-06-08 14:32:01 UTC (2023-06-08) · approx. 12:32 AM UTC+10 local
On June 8, 2023 at 14:32 UTC, a magnitude 4.9 shallow crustal earthquake struck 77 km ESE of Yigo Village, Guam, at a depth of 65.8 km and coordinates 13.3550°, 145.5770°. This earthquake was detected by 164 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.5770°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Yigo Village, Guam?
The magnitude 4.9 earthquake that struck 77 km ESE of Yigo Village, Guam on June 8, 2023 at 14:32 UTC had a depth of 65.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.3550°, 145.5770°, which is 77 km ESE of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000k754). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 8, 2023). M4.9 Earthquake 77 km ESE of Yigo Village, Guam — June 8, 2023. Retrieved August 12, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k754/