4.6

M4.6 Earthquake 178 km N of Metinaro, Timor LesteOctober 20, 2025

2025-10-20 22:31:55 UTC (2025-10-20) · approx. 6:31 AM UTC+8 local

MagnitudeM4.6(mb)
Time22:31 UTC6:31 AM UTC+8
Depth509.1 kmdeep-focus
Coordinates-6.915°, 125.705°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 20, 2025 at 22:31 UTC, a magnitude 4.6 deep-focus earthquake struck 178 km N of Metinaro, Timor Leste, at a depth of 509.1 km and coordinates -6.9147°, 125.7048°. This earthquake was detected by 86 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.

Map showing earthquake epicenter at -6.91°, 125.70°

Earthquake Details

Magnitude
4.6 mb
Depth
509.1 km
deep-focus
Location
-6.9147°N
125.7048°E

Technical Information

Event ID
us6000rid1
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
86
Azimuthal Gap
28.0°
Min Station Distance
3.160°
RMS Residual
0.61 sec
Last Updated
2026-01-09 15:38:42 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Metinaro, Timor Leste?

The magnitude 4.6 earthquake that struck 178 km N of Metinaro, Timor Leste on October 20, 2025 at 22:31 UTC had a depth of 509.1 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -6.9147°, 125.7048°, which is 178 km N of Metinaro, Timor Leste.

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.

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: us6000rid1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 20, 2025). M4.6 Earthquake 178 km N of Metinaro, Timor LesteOctober 20, 2025. Retrieved May 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rid1/