M4.7 Earthquake 150 km SW of Lorengau, Papua New Guinea — July 19, 2021
2021-07-19 20:24:24 UTC (2021-07-19) · approx. 6:24 AM UTC+10 local
On July 19, 2021 at 20:24 UTC, a magnitude 4.7 shallow crustal earthquake struck 150 km SW of Lorengau, Papua New Guinea, at a depth of 10.0 km and coordinates -3.1577°, 146.5015°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Papua New Guinea, a region characterized by the collision and subduction of the Pacific, Australian, and Solomon Sea plates. View all earthquakes in Papua New Guinea.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
146.5015°E
Technical Information
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Common Questions
How strong was the magnitude 4.7 earthquake near Lorengau, Papua New Guinea?
The magnitude 4.7 earthquake that struck 150 km SW of Lorengau, Papua New Guinea on July 19, 2021 at 20:24 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -3.1577°, 146.5015°, which is 150 km SW of Lorengau, Papua New Guinea. View all earthquakes in Papua New Guinea.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Has Papua New Guinea had earthquakes this big before?
The largest recorded earthquake in Papua New Guinea was the M8.0 New Britain earthquake of July 18, 1971. Today's magnitude 4.7 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us7000enj3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 19, 2021). M4.7 Earthquake 150 km SW of Lorengau, Papua New Guinea — July 19, 2021. Retrieved September 25, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000enj3/