M4.4 Earthquake 44 km NE of Port-Olry, Vanuatu — August 25, 2023
2023-08-25 22:33:08 UTC (2023-08-25) · approx. 9:33 AM UTC+11 local
On August 25, 2023 at 22:33 UTC, a magnitude 4.4 intermediate depth earthquake struck 44 km NE of Port-Olry, Vanuatu, at a depth of 140.0 km and coordinates -14.7471°, 167.3582°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
167.3582°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Port-Olry, Vanuatu?
The magnitude 4.4 earthquake that struck 44 km NE of Port-Olry, Vanuatu on August 25, 2023 at 22:33 UTC had a depth of 140.0 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000kse6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 25, 2023). M4.4 Earthquake 44 km NE of Port-Olry, Vanuatu — August 25, 2023. Retrieved October 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kse6/