4.9

M4.9 Earthquake near Mindanao, PhilippinesJanuary 29, 2023

2023-01-29 04:23:33 UTC (2023-01-29) · approx. 12:23 PM UTC+8 local

Felt by 4 people across nearby locations.

MagnitudeM4.9(mb)
Time04:23 UTC12:23 PM UTC+8
Depth49.1 kmshallow crustal
Coordinates5.592°, 125.057°
Felt by4DYFI responses
Status✓ Reviewed by USGS

On January 29, 2023 at 04:23 UTC, a magnitude 4.9 shallow crustal earthquake struck near Mindanao, Philippines, at a depth of 49.1 km and coordinates 5.5924°, 125.0567°. This earthquake was detected by 44 seismic stations with good location accuracy and was assigned a USGS significance rating of 371, 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 5.59°, 125.06°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 4 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 M4.9 earthquake near Mindanao, Philippines

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

Earthquake Details

Magnitude
4.9 mb
Depth
49.1 km
shallow crustal
Location
5.5924°N
125.0567°E
Felt Reports
4
DYFI responses
Community Intensity
3.4
CDI from reports

Technical Information

Event ID
us6000jk3r
Event Type
earthquake
Status
✓ Reviewed
Significance
371
Stations Used
44
Azimuthal Gap
93.0°
Min Station Distance
1.557°
RMS Residual
0.84 sec
Last Updated
2023-04-13 21:53:07 UTC

Common Questions

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

The magnitude 4.9 earthquake that struck near Mindanao, Philippines on January 29, 2023 at 04:23 UTC had a depth of 49.1 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 5.5924°, 125.0567°, which is near Mindanao, 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: us6000jk3r). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, January 29, 2023). M4.9 Earthquake near Mindanao, PhilippinesJanuary 29, 2023. Retrieved April 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jk3r/