M3.9 Earthquake 198 km ESE of Labasa, Fiji — December 17, 2022
2022-12-17 20:05:41 UTC (2022-12-17) · approx. 8:05 AM UTC-12 local
On December 17, 2022 at 20:05 UTC, a magnitude 3.9 deep-focus earthquake struck 198 km ESE of Labasa, Fiji, at a depth of 511.0 km and coordinates -17.2693°, -178.9837°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-178.9837°E
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Common Questions
How strong was the magnitude 3.9 earthquake near Labasa, Fiji?
The magnitude 3.9 earthquake that struck 198 km ESE of Labasa, Fiji on December 17, 2022 at 20:05 UTC had a depth of 511.0 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000j0fq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 17, 2022). M3.9 Earthquake 198 km ESE of Labasa, Fiji — December 17, 2022. Retrieved February 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j0fq/