M4.6 Earthquake 107 km NNW of Piti Village, Guam — March 18, 2024
2024-03-18 17:37:19 UTC (2024-03-18) · approx. 3:37 AM UTC+10 local
On March 18, 2024 at 17:37 UTC, a magnitude 4.6 shallow crustal earthquake struck 107 km NNW of Piti Village, Guam, at a depth of 13.3 km and coordinates 14.3050°, 144.1943°. This earthquake was detected by 39 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
144.1943°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Piti Village, Guam?
The magnitude 4.6 earthquake that struck 107 km NNW of Piti Village, Guam on March 18, 2024 at 17:37 UTC had a depth of 13.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 14.3050°, 144.1943°, which is 107 km NNW of Piti 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: us6000mjlf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 18, 2024). M4.6 Earthquake 107 km NNW of Piti Village, Guam — March 18, 2024. Retrieved May 27, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mjlf/