4.3

M4.3 Earthquake 124 km ENE of Masohi, IndonesiaApril 11, 2026

2026-04-11 16:57:57 UTC (2026-04-11) · approx. 1:57 AM UTC+9 local

MagnitudeM4.3(mb)
Time16:57 UTC1:57 AM UTC+9
Depth22.8 kmshallow crustal
Coordinates-2.799°, 129.974°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 11, 2026 at 16:57 UTC, a magnitude 4.3 shallow crustal earthquake struck 124 km ENE of Masohi, Indonesia, at a depth of 22.8 km and coordinates -2.7992°, 129.9740°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -2.80°, 129.97°

Earthquake Details

Magnitude
4.3 mb
Depth
22.8 km
shallow crustal
Location
-2.7992°N
129.9740°E

Technical Information

Event ID
us6000sruu
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
29
Azimuthal Gap
123.0°
Min Station Distance
1.713°
RMS Residual
0.70 sec
Last Updated
2026-05-07 17:34:47 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Masohi, Indonesia?

The magnitude 4.3 earthquake that struck 124 km ENE of Masohi, Indonesia on April 11, 2026 at 16:57 UTC had a depth of 22.8 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 4.3 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: us6000sruu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 11, 2026). M4.3 Earthquake 124 km ENE of Masohi, IndonesiaApril 11, 2026. Retrieved May 17, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000sruu/