M5.2 Earthquake 193 km S of Mata-Utu, Wallis and Futuna — October 23, 2023
2023-10-23 10:31:33 UTC (2023-10-23) · approx. 10:31 PM UTC-12 local
On October 23, 2023 at 10:31 UTC, a magnitude 5.2 deep-focus earthquake struck 193 km S of Mata-Utu, Wallis and Futuna, at a depth of 325.4 km and coordinates -15.0241°, -176.0829°. This earthquake was detected by 107 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-176.0829°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake near Mata-Utu, Wallis and Futuna?
The magnitude 5.2 earthquake that struck 193 km S of Mata-Utu, Wallis and Futuna on October 23, 2023 at 10:31 UTC had a depth of 325.4 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -15.0241°, -176.0829°, which is 193 km S of Mata-Utu, Wallis and Futuna.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000lhgj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 23, 2023). M5.2 Earthquake 193 km S of Mata-Utu, Wallis and Futuna — October 23, 2023. Retrieved January 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lhgj/