4.2

M4.2 Earthquake 31 km WNW of Piti Village, GuamMarch 22, 2024

2024-03-22 21:37:25 UTC (2024-03-22) · approx. 7:37 AM UTC+10 local

MagnitudeM4.2(mb)
Time21:37 UTC7:37 AM UTC+10
Depth137.2 kmintermediate depth
Coordinates13.530°, 144.410°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 22, 2024 at 21:37 UTC, a magnitude 4.2 intermediate depth earthquake struck 31 km WNW of Piti Village, Guam, at a depth of 137.2 km and coordinates 13.5295°, 144.4103°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.53°, 144.41°

Earthquake Details

Magnitude
4.2 mb
Depth
137.2 km
intermediate depth
Location
13.5295°N
144.4103°E

Technical Information

Event ID
us7000m89t
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
26
Azimuthal Gap
101.0°
Min Station Distance
0.449°
RMS Residual
0.36 sec
Last Updated
2024-05-27 14:19:24 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Piti Village, Guam?

The magnitude 4.2 earthquake that struck 31 km WNW of Piti Village, Guam on March 22, 2024 at 21:37 UTC had a depth of 137.2 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000m89t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, March 22, 2024). M4.2 Earthquake 31 km WNW of Piti Village, GuamMarch 22, 2024. Retrieved May 27, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m89t/