4.3

M4.3 Earthquake 29 km SW of Sangay, PhilippinesJanuary 20, 2026

2026-01-20 23:40:27 UTC (2026-01-20) · approx. 7:40 AM UTC+8 local

MagnitudeM4.3(mb)
Time23:40 UTC7:40 AM UTC+8
Depth46.2 kmshallow crustal
Coordinates6.264°, 123.851°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 20, 2026 at 23:40 UTC, a magnitude 4.3 shallow crustal earthquake struck 29 km SW of Sangay, Philippines, at a depth of 46.2 km and coordinates 6.2644°, 123.8507°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 6.26°, 123.85°

Earthquake Details

Magnitude
4.3 mb
Depth
46.2 km
shallow crustal
Location
6.2644°N
123.8507°E

Technical Information

Event ID
us6000s6mj
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
11
Azimuthal Gap
98.0°
Min Station Distance
1.894°
RMS Residual
0.35 sec
Last Updated
2026-04-18 14:46:38 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Sangay, Philippines?

The magnitude 4.3 earthquake that struck 29 km SW of Sangay, Philippines on January 20, 2026 at 23:40 UTC had a depth of 46.2 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 4.3 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: us6000s6mj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, January 20, 2026). M4.3 Earthquake 29 km SW of Sangay, PhilippinesJanuary 20, 2026. Retrieved May 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000s6mj/