M4.0 Earthquake 122 km WSW of Rabaul, Papua New Guinea — May 29, 2026
2026-05-29 22:26:52 UTC (2026-05-29) · approx. 8:26 AM UTC+10 local
On May 29, 2026 at 22:26 UTC, a magnitude 4.0 intermediate depth earthquake struck 122 km WSW of Rabaul, Papua New Guinea, at a depth of 288.2 km and coordinates -4.5073°, 151.0986°.
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
151.0986°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Rabaul, Papua New Guinea?
The magnitude 4.0 earthquake that struck 122 km WSW of Rabaul, Papua New Guinea on May 29, 2026 at 22:26 UTC had a depth of 288.2 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: us7000sqlc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, May 29, 2026). M4.0 Earthquake 122 km WSW of Rabaul, Papua New Guinea — May 29, 2026. Retrieved June 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sqlc/