M4.9 Earthquake 115 km S of Merizo Village, Guam — March 21, 2022
2022-03-21 14:56:01 UTC (2022-03-21) · approx. 12:56 AM UTC+10 local
On March 21, 2022 at 14:56 UTC, a magnitude 4.9 shallow crustal earthquake struck 115 km S of Merizo Village, Guam, at a depth of 10.0 km and coordinates 12.2415°, 144.4707°.
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
144.4707°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Merizo Village, Guam?
The magnitude 4.9 earthquake that struck 115 km S of Merizo Village, Guam on March 21, 2022 at 14:56 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 12.2415°, 144.4707°, which is 115 km S of Merizo 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: us6000h6ee). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, March 21, 2022). M4.9 Earthquake 115 km S of Merizo Village, Guam — March 21, 2022. Retrieved May 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h6ee/