M4.2 Earthquake 180 km ESE of Kokopo, Papua New Guinea — June 17, 2023
2023-06-17 21:25:13 UTC (2023-06-17) · approx. 7:25 AM UTC+10 local
On June 17, 2023 at 21:25 UTC, a magnitude 4.2 intermediate depth earthquake struck 180 km ESE of Kokopo, Papua New Guinea, at a depth of 88.6 km and coordinates -4.8380°, 153.8170°.
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
153.8170°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Kokopo, Papua New Guinea?
The magnitude 4.2 earthquake that struck 180 km ESE of Kokopo, Papua New Guinea on June 17, 2023 at 21:25 UTC had a depth of 88.6 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: us7000kam8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 17, 2023). M4.2 Earthquake 180 km ESE of Kokopo, Papua New Guinea — June 17, 2023. Retrieved August 21, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kam8/