4.4

M4.4 Earthquake 9 km NNE of Santa Monica, PhilippinesMay 31, 2024

2024-05-31 20:31:10 UTC (2024-05-31) · approx. 4:31 AM UTC+8 local

MagnitudeM4.4(mb)
Time20:31 UTC4:31 AM UTC+8
Depth40.9 kmshallow crustal
Coordinates10.091°, 126.080°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 31, 2024 at 20:31 UTC, a magnitude 4.4 shallow crustal earthquake struck 9 km NNE of Santa Monica, Philippines, at a depth of 40.9 km and coordinates 10.0909°, 126.0803°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 10.09°, 126.08°

Earthquake Details

Magnitude
4.4 mb
Depth
40.9 km
shallow crustal
Location
10.0909°N
126.0803°E

Technical Information

Event ID
us7000mqrm
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
69
Azimuthal Gap
96.0°
Min Station Distance
3.042°
RMS Residual
0.61 sec
Last Updated
2024-08-06 20:32:52 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Santa Monica, Philippines?

The magnitude 4.4 earthquake that struck 9 km NNE of Santa Monica, Philippines on May 31, 2024 at 20:31 UTC had a depth of 40.9 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000mqrm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, May 31, 2024). M4.4 Earthquake 9 km NNE of Santa Monica, PhilippinesMay 31, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mqrm/