M4.2 Earthquake 95 km NNW of Pototano, Indonesia — January 31, 2023
2023-01-31 18:32:07 UTC (2023-01-31) · approx. 2:32 AM UTC+8 local
On January 31, 2023 at 18:32 UTC, a magnitude 4.2 intermediate depth earthquake struck 95 km NNW of Pototano, Indonesia, at a depth of 295.3 km and coordinates -7.5925°, 117.2066°.
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
117.2066°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Pototano, Indonesia?
The magnitude 4.2 earthquake that struck 95 km NNW of Pototano, Indonesia on January 31, 2023 at 18:32 UTC had a depth of 295.3 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: us6000jma1). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 31, 2023). M4.2 Earthquake 95 km NNW of Pototano, Indonesia — January 31, 2023. Retrieved April 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jma1/