4.1

M4.1 Earthquake 130 km NNW of Labuan Bajo, IndonesiaMay 28, 2026

2026-05-28 08:06:54 UTC (26 min ago) · approx. 4:06 PM UTC+8 local

MagnitudeM4.1(mb)
Time08:06 UTC4:06 PM UTC+8
Depth444.6 kmdeep-focus
Coordinates-7.363°, 119.548°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 28, 2026 at 08:06 UTC, a magnitude 4.1 deep-focus earthquake struck 130 km NNW of Labuan Bajo, Indonesia, at a depth of 444.6 km and coordinates -7.3627°, 119.5484°.

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 -7.36°, 119.55°

Earthquake Details

Magnitude
4.1 mb
Depth
444.6 km
deep-focus
Location
-7.3627°N
119.5484°E

Technical Information

Event ID
us7000sp1c
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
18
Azimuthal Gap
97.0°
Min Station Distance
2.279°
RMS Residual
0.94 sec
Last Updated
2026-05-28 08:23:53 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Labuan Bajo, Indonesia?

The magnitude 4.1 earthquake that struck 130 km NNW of Labuan Bajo, Indonesia on May 28, 2026 at 08:06 UTC had a depth of 444.6 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.

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: us7000sp1c). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 28, 2026). M4.1 Earthquake 130 km NNW of Labuan Bajo, IndonesiaMay 28, 2026. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sp1c/