5.5

M5.5 Earthquake 53 km E of Baculin, PhilippinesOctober 14, 2025

2025-10-14 02:00:11 UTC (2025-10-14) · approx. 10:00 AM UTC+8 local

Felt by 2 people across nearby locations. Maximum shaking intensity MMI 4.3 (moderate).

MagnitudeM5.5(mww)
Time02:00 UTC10:00 AM UTC+8
Depth35.0 kmshallow crustal
Coordinates7.374°, 127.061°
Felt by2DYFI responses· max MMI 4.3
Status✓ Reviewed by USGS· green PAGER
green Alertno significant casualties or damage expected

On October 14, 2025 at 02:00 UTC, a magnitude 5.5 shallow crustal earthquake struck 53 km E of Baculin, Philippines, at a depth of 35.0 km and coordinates 7.3744°, 127.0611°. The earthquake was reported felt by 2 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 4.3 (moderate). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 205 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 466, placing it among routine seismic activity. The nearest populated place is Baculin (population 2,971).

Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 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

Nearest Populated Places

Baculinpop. 2,971
MMI 4.2 (moderate)
San Rafaelpop. 2,126
MMI 4.1 (moderate)
San Pedropop. 4,079
MMI 4.0 (light)
Bagangapop. 10,106
MMI 3.9 (light)
Santiagopop. 2,631
MMI 3.8 (light)
Manaypop. 20,336
MMI 3.8 (light)
Map showing earthquake epicenter at 7.37°, 127.06°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.5 earthquake near 53 km E of Baculin, Philippines

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 citizen responses 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 M5.5 earthquake near 53 km E of Baculin, Philippines

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

Population exposure (USGS PAGER)

Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.

Shaking intensity (MMI)DescriptionPopulation exposed
MMI 3weak6,497,114
MMI 4light1,393,716

Earthquake Details

Magnitude
5.5 mww
Depth
35.0 km
shallow crustal
Location
7.3744°N
127.0611°E
Felt Reports
2
DYFI responses
Intensity (MMI)
4.3
moderate
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us6000rgz6
Event Type
earthquake
Status
✓ Reviewed
Significance
466
Stations Used
205
Azimuthal Gap
55.0°
Min Station Distance
1.501°
RMS Residual
0.83 sec
Last Updated
2026-01-01 23:11:12 UTC

Common Questions

How strong was the magnitude 5.5 earthquake near Baculin, Philippines?

The magnitude 5.5 earthquake that struck 53 km E of Baculin, Philippines on October 14, 2025 at 02:00 UTC had a depth of 35.0 km. It was felt by 2 people with maximum shaking intensity of MMI 4.3 (moderate). For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 7.3744°, 127.0611°, which is 53 km E of Baculin, Philippines. The nearest populated place is Baculin (population 2,971). View all earthquakes in Philippines.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks 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 5.5 event is significantly smaller than that historical record.

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: us6000rgz6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 14, 2025). M5.5 Earthquake 53 km E of Baculin, PhilippinesOctober 14, 2025. Retrieved May 27, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rgz6/