M4.9 Earthquake 44 km NE of Labasa, Fiji — May 18, 2021
2021-05-18 14:48:16 UTC (2021-05-18) · approx. 2:48 AM UTC+12 local
Felt by 2 people across nearby locations.
On May 18, 2021 at 14:48 UTC, a magnitude 4.9 shallow crustal earthquake struck 44 km NE of Labasa, Fiji, at a depth of 26.1 km and coordinates -16.1120°, 179.6208°.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 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 2 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
179.6208°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Labasa, Fiji?
The magnitude 4.9 earthquake that struck 44 km NE of Labasa, Fiji on May 18, 2021 at 14:48 UTC had a depth of 26.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -16.1120°, 179.6208°, which is 44 km NE of Labasa, Fiji. View all earthquakes in Fiji.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Authoritative source: USGS event page (event ID: us7000e5tw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, May 18, 2021). M4.9 Earthquake 44 km NE of Labasa, Fiji — May 18, 2021. Retrieved August 9, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000e5tw/