M4.0 Earthquake 29 km WSW of Ambarita, Indonesia — August 25, 2026
2026-08-25 23:57:25 UTC (2026-08-25) · approx. 6:57 AM UTC+7 local
On August 25, 2026 at 23:57 UTC, a magnitude 4.0 intermediate depth earthquake struck 29 km WSW of Ambarita, Indonesia, at a depth of 151.1 km and coordinates 2.5836°, 98.5868°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
98.5868°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Ambarita, Indonesia?
The magnitude 4.0 earthquake that struck 29 km WSW of Ambarita, Indonesia on August 25, 2026 at 23:57 UTC had a depth of 151.1 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000tddw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 25, 2026). M4.0 Earthquake 29 km WSW of Ambarita, Indonesia — August 25, 2026. Retrieved September 1, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tddw/