M5.2 Earthquake 126 km ENE of Labasa, Fiji — October 16, 2023
2023-10-16 08:46:09 UTC (2023-10-16) · approx. 8:46 PM UTC-12 local
Felt by 5 people across nearby locations.
On October 16, 2023 at 08:46 UTC, a magnitude 5.2 shallow crustal earthquake struck 126 km ENE of Labasa, Fiji, at a depth of 10.0 km and coordinates -15.8606°, -179.6159°. This earthquake was detected by 88 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 418, 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.
The epicenter is located in Fiji, a region characterized by the Fiji Fracture Zone at the junction of the Pacific and Australian plates, with deep-focus seismicity from the subducted slab. View all earthquakes in Fiji.
Learn more: Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 5 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-179.6159°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake near Labasa, Fiji?
The magnitude 5.2 earthquake that struck 126 km ENE of Labasa, Fiji on October 16, 2023 at 08:46 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -15.8606°, -179.6159°, which is 126 km ENE of Labasa, Fiji. View all earthquakes in Fiji.
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
Location
Authoritative source: USGS event page (event ID: us6000lfv4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 16, 2023). M5.2 Earthquake 126 km ENE of Labasa, Fiji — October 16, 2023. Retrieved December 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lfv4/