4.9

M4.9 Earthquake 17 km SSE of Malim, PhilippinesAugust 31, 2025

2025-08-31 07:49:53 UTC (2025-08-31) · approx. 3:49 PM UTC+8 local

Felt by 1 person across nearby locations.

MagnitudeM4.9(mb)
Time07:49 UTC3:49 PM UTC+8
Depth10.0 kmshallow crustal
Coordinates7.300°, 123.482°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 31, 2025 at 07:49 UTC, a magnitude 4.9 shallow crustal earthquake struck 17 km SSE of Malim, Philippines, at a depth of 10.0 km and coordinates 7.3003°, 123.4816°. This earthquake was detected by 55 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Philippines, a region characterized by the Manila Trench and Philippine Trench subduction systems, where the Philippine Sea Plate overrides the Eurasian Plate. The nearest mapped fault system is the Philippine Fault. View all earthquakes in Philippines.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 7.30°, 123.48°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.9 earthquake near 17 km SSE of Malim, Philippines

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
7.3003°N
123.4816°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000qsr1
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
55
Azimuthal Gap
65.0°
Min Station Distance
2.094°
RMS Residual
0.45 sec
Last Updated
2025-11-19 21:59:46 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Malim, Philippines?

The magnitude 4.9 earthquake that struck 17 km SSE of Malim, Philippines on August 31, 2025 at 07:49 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 7.3003°, 123.4816°, which is 17 km SSE of Malim, Philippines. View all earthquakes in Philippines.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Philippines had earthquakes this big before?

The largest recorded earthquake in Philippines was the M8.0 Mindanao earthquake of August 17, 1976. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000qsr1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 31, 2025). M4.9 Earthquake 17 km SSE of Malim, PhilippinesAugust 31, 2025. Retrieved November 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qsr1/