M4.0 Earthquake 102 km N of Labuan Bajo, Indonesia — April 15, 2025
2025-04-15 22:56:15 UTC (2025-04-15) · approx. 6:56 AM UTC+8 local
On April 15, 2025 at 22:56 UTC, a magnitude 4.0 deep-focus earthquake struck 102 km N of Labuan Bajo, Indonesia, at a depth of 435.1 km and coordinates -7.5811°, 119.7284°.
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
119.7284°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Labuan Bajo, Indonesia?
The magnitude 4.0 earthquake that struck 102 km N of Labuan Bajo, Indonesia on April 15, 2025 at 22:56 UTC had a depth of 435.1 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: us7000pw57). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 15, 2025). M4.0 Earthquake 102 km N of Labuan Bajo, Indonesia — April 15, 2025. Retrieved June 14, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pw57/