M4.9 Earthquake 71 km WNW of Agat Village, Guam — July 16, 2022
2022-07-16 15:00:04 UTC (2022-07-16) · approx. 1:00 AM UTC+10 local
On July 16, 2022 at 15:00 UTC, a magnitude 4.9 intermediate depth earthquake struck 71 km WNW of Agat Village, Guam, at a depth of 197.4 km and coordinates 13.6876°, 144.0731°. This earthquake was detected by 95 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
144.0731°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Agat Village, Guam?
The magnitude 4.9 earthquake that struck 71 km WNW of Agat Village, Guam on July 16, 2022 at 15:00 UTC had a depth of 197.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.6876°, 144.0731°, which is 71 km WNW of Agat 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: us6000i31v). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 16, 2022). M4.9 Earthquake 71 km WNW of Agat Village, Guam — July 16, 2022. Retrieved September 27, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i31v/