4.2

M4.2 Earthquake 0 km NNW of Puerto Galera, PhilippinesMay 17, 2024

2024-05-17 16:04:22 UTC (2024-05-17) · approx. 12:04 AM UTC+8 local

MagnitudeM4.2(mb)
Time16:04 UTC12:04 AM UTC+8
Depth149.4 kmintermediate depth
Coordinates13.506°, 120.950°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 17, 2024 at 16:04 UTC, a magnitude 4.2 intermediate depth earthquake struck 0 km NNW of Puerto Galera, Philippines, at a depth of 149.4 km and coordinates 13.5061°, 120.9503°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.0 mainshock that occurred 6 days ago 7 km NW of Cabacao, Philippines. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 13.51°, 120.95°

Earthquake Details

Magnitude
4.2 mb
Depth
149.4 km
intermediate depth
Location
13.5061°N
120.9503°E

Technical Information

Event ID
us6000n0i3
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
33
Azimuthal Gap
115.0°
Min Station Distance
7.851°
RMS Residual
0.54 sec
Last Updated
2024-07-26 23:58:11 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Puerto Galera, Philippines?

The magnitude 4.2 earthquake that struck 0 km NNW of Puerto Galera, Philippines on May 17, 2024 at 16:04 UTC had a depth of 149.4 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.

Is this the same earthquake as the M5.0 one earlier?

No. This magnitude 4.2 earthquake is an aftershock of the larger magnitude 5.0 mainshock that occurred earlier 7 km NW of Cabacao, Philippines. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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: us6000n0i3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, May 17, 2024). M4.2 Earthquake 0 km NNW of Puerto Galera, PhilippinesMay 17, 2024. Retrieved July 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000n0i3/