M4.2 Earthquake near Near the south coast of Papua, Indonesia — January 17, 2023
2023-01-17 23:40:34 UTC (2023-01-17) · approx. 8:40 AM UTC+9 local
On January 17, 2023 at 23:40 UTC, a magnitude 4.2 shallow crustal earthquake struck near Near the south coast of Papua, Indonesia, at a depth of 10.0 km and coordinates -4.0783°, 133.3026°.
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
133.3026°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Near the south coast of Papua, Indonesia?
The magnitude 4.2 earthquake that struck near Near the south coast of Papua, Indonesia on January 17, 2023 at 23:40 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 4.2 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: us6000jj7t). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 17, 2023). M4.2 Earthquake near Near the south coast of Papua, Indonesia — January 17, 2023. Retrieved March 31, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jj7t/