4.1

M4.1 Earthquake 220 km NW of Tobelo, IndonesiaMarch 29, 2025

2025-03-29 14:26:41 UTC (2025-03-29) · approx. 10:26 PM UTC+8 local

MagnitudeM4.1(mb)
Time14:26 UTC10:26 PM UTC+8
Depth46.1 kmshallow crustal
Coordinates2.966°, 126.450°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 29, 2025 at 14:26 UTC, a magnitude 4.1 shallow crustal earthquake struck 220 km NW of Tobelo, Indonesia, at a depth of 46.1 km and coordinates 2.9665°, 126.4501°.

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 2.97°, 126.45°

Earthquake Details

Magnitude
4.1 mb
Depth
46.1 km
shallow crustal
Location
2.9665°N
126.4501°E

Technical Information

Event ID
us6000q4s7
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
24
Azimuthal Gap
145.0°
Min Station Distance
2.004°
RMS Residual
0.87 sec
Last Updated
2025-06-06 21:12:22 UTC

Common Questions

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

The magnitude 4.1 earthquake that struck 220 km NW of Tobelo, Indonesia on March 29, 2025 at 14:26 UTC had a depth of 46.1 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.

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: us6000q4s7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, March 29, 2025). M4.1 Earthquake 220 km NW of Tobelo, IndonesiaMarch 29, 2025. Retrieved June 6, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q4s7/