M4.0 Earthquake 13 km ESE of Segamat, Malaysia — August 23, 2025
2025-08-23 22:13:48 UTC (2025-08-23) · approx. 5:13 AM UTC+7 local
On August 23, 2025 at 22:13 UTC, a magnitude 4.0 shallow crustal earthquake struck 13 km ESE of Segamat, Malaysia, at a depth of 10.0 km and coordinates 2.4785°, 102.9360°.
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
102.9360°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Segamat, Malaysia?
The magnitude 4.0 earthquake that struck 13 km ESE of Segamat, Malaysia on August 23, 2025 at 22:13 UTC had a depth of 10.0 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 4.0 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: us6000r3fi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, August 23, 2025). M4.0 Earthquake 13 km ESE of Segamat, Malaysia — August 23, 2025. Retrieved November 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000r3fi/