4.1

M4.1 Earthquake 132 km W of Gorontalo, Indonesia — April 5, 2025

2025-04-05 20:11:47 UTC (2025-04-05) · approx. 4:11 AM UTC+8 local

MagnitudeM4.1(mb)
Time20:11 UTC≈ 4:11 AM UTC+8
Depth131.1 kmintermediate depth
Coordinates0.501°, 121.877°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 5, 2025 at 20:11 UTC, a magnitude 4.1 intermediate depth earthquake struck 132 km W of Gorontalo, Indonesia, at a depth of 131.1 km and coordinates 0.5008°, 121.8771°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.2 mainshock that occurred 20 days ago 149 km W of Gorontalo, Indonesia. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 0.50°, 121.88°

Earthquake Details

Magnitude
4.1 mb
Depth
131.1 km
intermediate depth
Location
0.5008°N
121.8771°E

Technical Information

Event ID
us6000q6ji
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
26
Azimuthal Gap
86.0°
Min Station Distance
1.252°
RMS Residual
0.54 sec
Last Updated
2025-06-09 13:38:47 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Gorontalo, Indonesia?

The magnitude 4.1 earthquake that struck 132 km W of Gorontalo, Indonesia on April 5, 2025 at 20:11 UTC had a depth of 131.1 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.

Is this the same earthquake as the M5.2 one earlier?

No. This magnitude 4.1 earthquake is an aftershock of the larger magnitude 5.2 mainshock that occurred earlier 149 km W of Gorontalo, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000q6ji). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, April 5, 2025). M4.1 Earthquake 132 km W of Gorontalo, Indonesia — April 5, 2025. Retrieved June 9, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q6ji/