4.6

M4.6 Earthquake 141 km SW of Fakfak, IndonesiaOctober 24, 2025

2025-10-24 18:56:09 UTC (2025-10-24) · approx. 3:56 AM UTC+9 local

MagnitudeM4.6(mb)
Time18:56 UTC3:56 AM UTC+9
Depth34.8 kmshallow crustal
Coordinates-3.911°, 131.493°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 24, 2025 at 18:56 UTC, a magnitude 4.6 shallow crustal earthquake struck 141 km SW of Fakfak, Indonesia, at a depth of 34.8 km and coordinates -3.9109°, 131.4925°. This earthquake was detected by 78 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Indonesia, a region characterized by the convergence of the Indo-Australian, Eurasian, and Philippine Sea plates, forming the Sunda-Banda arc system. The nearest mapped fault system is the Sunda megathrust. View all earthquakes in Indonesia.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -3.91°, 131.49°

Earthquake Details

Magnitude
4.6 mb
Depth
34.8 km
shallow crustal
Location
-3.9109°N
131.4925°E

Technical Information

Event ID
us6000rj9x
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
78
Azimuthal Gap
40.0°
Min Station Distance
1.241°
RMS Residual
0.75 sec
Last Updated
2026-01-15 22:46:51 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Fakfak, Indonesia?

The magnitude 4.6 earthquake that struck 141 km SW of Fakfak, Indonesia on October 24, 2025 at 18:56 UTC had a depth of 34.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -3.9109°, 131.4925°, which is 141 km SW of Fakfak, Indonesia. View all earthquakes in Indonesia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Has Indonesia had earthquakes this big before?

The largest recorded earthquake in Indonesia was the M9.1 Indian Ocean earthquake of December 26, 2004. Today's magnitude 4.6 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: us6000rj9x). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 24, 2025). M4.6 Earthquake 141 km SW of Fakfak, IndonesiaOctober 24, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rj9x/