4.0

M4.0 Earthquake 98 km ESE of Sarangani, PhilippinesSeptember 17, 2025

2025-09-17 22:51:38 UTC (2025-09-17) · approx. 6:51 AM UTC+8 local

MagnitudeM4.0(mb)
Time22:51 UTC6:51 AM UTC+8
Depth26.6 kmshallow crustal
Coordinates5.172°, 126.326°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 17, 2025 at 22:51 UTC, a magnitude 4.0 shallow crustal earthquake struck 98 km ESE of Sarangani, Philippines, at a depth of 26.6 km and coordinates 5.1722°, 126.3259°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 5.17°, 126.33°

Earthquake Details

Magnitude
4.0 mb
Depth
26.6 km
shallow crustal
Location
5.1722°N
126.3259°E

Technical Information

Event ID
us6000rg6n
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
14
Azimuthal Gap
152.0°
Min Station Distance
0.950°
RMS Residual
0.65 sec
Last Updated
2025-12-06 16:00:10 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Sarangani, Philippines?

The magnitude 4.0 earthquake that struck 98 km ESE of Sarangani, Philippines on September 17, 2025 at 22:51 UTC had a depth of 26.6 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 4.0 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us6000rg6n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 17, 2025). M4.0 Earthquake 98 km ESE of Sarangani, PhilippinesSeptember 17, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rg6n/