M4.2 Earthquake 33 km NNW of Sepatan, Indonesia — August 13, 2023
2023-08-13 19:06:20 UTC (2023-08-13) · approx. 2:06 AM UTC+7 local
On August 13, 2023 at 19:06 UTC, a magnitude 4.2 intermediate depth earthquake struck 33 km NNW of Sepatan, Indonesia, at a depth of 218.1 km and coordinates -5.8373°, 106.4748°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
106.4748°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Sepatan, Indonesia?
The magnitude 4.2 earthquake that struck 33 km NNW of Sepatan, Indonesia on August 13, 2023 at 19:06 UTC had a depth of 218.1 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000kqhe). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 13, 2023). M4.2 Earthquake 33 km NNW of Sepatan, Indonesia — August 13, 2023. Retrieved October 27, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kqhe/