4.1

M4.1 Earthquake 283 km WSW of Tual, IndonesiaAugust 28, 2026

2026-08-28 00:03:56 UTC (52 min ago) · approx. 9:03 AM UTC+9 local

MagnitudeM4.1(mb)
Time00:03 UTC9:03 AM UTC+9
Depth130.0 kmintermediate depth
Coordinates-6.391°, 130.309°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 28, 2026 at 00:03 UTC, a magnitude 4.1 intermediate depth earthquake struck 283 km WSW of Tual, Indonesia, at a depth of 130.0 km and coordinates -6.3912°, 130.3094°.

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 -6.39°, 130.31°

Earthquake Details

Magnitude
4.1 mb
Depth
130.0 km
intermediate depth
Location
-6.3912°N
130.3094°E

Technical Information

Event ID
us7000tcgk
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
14
Azimuthal Gap
122.0°
Min Station Distance
1.900°
RMS Residual
0.90 sec
Last Updated
2026-08-28 00:44:15 UTC

Common Questions

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

The magnitude 4.1 earthquake that struck 283 km WSW of Tual, Indonesia on August 28, 2026 at 00:03 UTC had a depth of 130.0 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: us7000tcgk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 28, 2026). M4.1 Earthquake 283 km WSW of Tual, IndonesiaAugust 28, 2026. Retrieved August 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tcgk/