M4.0 Earthquake 35 km ENE of Pototano, Indonesia — April 1, 2025
2025-04-01 21:25:57 UTC (2025-04-01) · approx. 5:25 AM UTC+8 local
On April 1, 2025 at 21:25 UTC, a magnitude 4.0 shallow crustal earthquake struck 35 km ENE of Pototano, Indonesia, at a depth of 11.8 km and coordinates -8.2393°, 117.7506°.
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
117.7506°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Pototano, Indonesia?
The magnitude 4.0 earthquake that struck 35 km ENE of Pototano, Indonesia on April 1, 2025 at 21:25 UTC had a depth of 11.8 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 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000q5ex). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 1, 2025). M4.0 Earthquake 35 km ENE of Pototano, Indonesia — April 1, 2025. Retrieved June 6, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q5ex/