M4.0 Earthquake 137 km WNW of Panguna, Papua New Guinea — April 13, 2023
2023-04-13 16:21:15 UTC (2023-04-13) · approx. 2:21 AM UTC+10 local
On April 13, 2023 at 16:21 UTC, a magnitude 4.0 deep-focus earthquake struck 137 km WNW of Panguna, Papua New Guinea, at a depth of 389.2 km and coordinates -5.8457°, 154.3353°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
154.3353°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Panguna, Papua New Guinea?
The magnitude 4.0 earthquake that struck 137 km WNW of Panguna, Papua New Guinea on April 13, 2023 at 16:21 UTC had a depth of 389.2 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000k5j4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 13, 2023). M4.0 Earthquake 137 km WNW of Panguna, Papua New Guinea — April 13, 2023. Retrieved June 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k5j4/