M4.9 Earthquake 80 km NE of Alugan, Philippines — May 7, 2025
2025-05-07 04:41:31 UTC (2025-05-07) · approx. 12:41 PM UTC+8 local
On May 7, 2025 at 04:41 UTC, a magnitude 4.9 shallow crustal earthquake struck 80 km NE of Alugan, Philippines, at a depth of 10.0 km and coordinates 12.7216°, 126.0118°. This earthquake was detected by 122 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
Earthquake Details
126.0118°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake near Alugan, Philippines?
The magnitude 4.9 earthquake that struck 80 km NE of Alugan, Philippines on May 7, 2025 at 04:41 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 12.7216°, 126.0118°, which is 80 km NE of Alugan, 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: us7000pxmr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, May 7, 2025). M4.9 Earthquake 80 km NE of Alugan, Philippines — May 7, 2025. Retrieved July 24, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pxmr/