4.4

M4.4 Earthquake 54 km ESE of San Ignacio, PhilippinesOctober 15, 2025

2025-10-15 23:46:33 UTC (2025-10-15) · approx. 7:46 AM UTC+8 local

MagnitudeM4.4(mb)
Time23:46 UTC7:46 AM UTC+8
Depth71.6 kmintermediate depth
Coordinates6.903°, 126.933°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 15, 2025 at 23:46 UTC, a magnitude 4.4 intermediate depth earthquake struck 54 km ESE of San Ignacio, Philippines, at a depth of 71.6 km and coordinates 6.9034°, 126.9331°.

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 6.90°, 126.93°

Earthquake Details

Magnitude
4.4 mb
Depth
71.6 km
intermediate depth
Location
6.9034°N
126.9331°E

Technical Information

Event ID
us6000rlqy
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
49
Azimuthal Gap
133.0°
Min Station Distance
1.354°
RMS Residual
0.79 sec
Last Updated
2026-01-09 15:38:45 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near San Ignacio, Philippines?

The magnitude 4.4 earthquake that struck 54 km ESE of San Ignacio, Philippines on October 15, 2025 at 23:46 UTC had a depth of 71.6 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 4.4 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: us6000rlqy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 15, 2025). M4.4 Earthquake 54 km ESE of San Ignacio, PhilippinesOctober 15, 2025. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rlqy/