M4.4 Earthquake 131 km S of Cilacap, Indonesia — April 21, 2024
2024-04-21 18:50:44 UTC (2024-04-21) · approx. 1:50 AM UTC+7 local
On April 21, 2024 at 18:50 UTC, a magnitude 4.4 shallow crustal earthquake struck 131 km S of Cilacap, Indonesia, at a depth of 39.8 km and coordinates -8.9064°, 109.1143°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
109.1143°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Cilacap, Indonesia?
The magnitude 4.4 earthquake that struck 131 km S of Cilacap, Indonesia on April 21, 2024 at 18:50 UTC had a depth of 39.8 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000mu2g). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, April 21, 2024). M4.4 Earthquake 131 km S of Cilacap, Indonesia — April 21, 2024. Retrieved June 25, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mu2g/