4.1

M4.1 Earthquake 33 km SE of Lukatan, PhilippinesJanuary 8, 2026

2026-01-08 21:47:49 UTC (2026-01-08) · approx. 5:47 AM UTC+8 local

MagnitudeM4.1(mb)
Time21:47 UTC5:47 AM UTC+8
Depth175.2 kmintermediate depth
Coordinates6.787°, 126.630°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 8, 2026 at 21:47 UTC, a magnitude 4.1 intermediate depth earthquake struck 33 km SE of Lukatan, Philippines, at a depth of 175.2 km and coordinates 6.7867°, 126.6301°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 6.79°, 126.63°

Earthquake Details

Magnitude
4.1 mb
Depth
175.2 km
intermediate depth
Location
6.7867°N
126.6301°E

Technical Information

Event ID
us6000s4tp
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
20
Azimuthal Gap
154.0°
Min Station Distance
1.081°
RMS Residual
0.65 sec
Last Updated
2026-04-10 15:20:37 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Lukatan, Philippines?

The magnitude 4.1 earthquake that struck 33 km SE of Lukatan, Philippines on January 8, 2026 at 21:47 UTC had a depth of 175.2 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 4.1 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: us6000s4tp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, January 8, 2026). M4.1 Earthquake 33 km SE of Lukatan, PhilippinesJanuary 8, 2026. Retrieved May 12, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000s4tp/