4.0

M4.0 Earthquake 204 km ENE of Levuka, FijiJune 1, 2024

2024-06-01 22:49:28 UTC (2024-06-01) · approx. 10:49 AM UTC-12 local

MagnitudeM4.0(mb)
Time22:49 UTC10:49 AM UTC-12
Depth548.4 kmdeep-focus
Coordinates-17.547°, -178.828°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 1, 2024 at 22:49 UTC, a magnitude 4.0 deep-focus earthquake struck 204 km ENE of Levuka, Fiji, at a depth of 548.4 km and coordinates -17.5466°, -178.8284°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.1 mainshock that occurred 13 hours ago 226 km E of Levuka, Fiji. Since the mainshock, the USGS has recorded 2 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at -17.55°, -178.83°

Earthquake Details

Magnitude
4.0 mb
Depth
548.4 km
deep-focus
Location
-17.5466°N
-178.8284°E

Technical Information

Event ID
us7000mqz3
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
22
Azimuthal Gap
182.0°
Min Station Distance
2.025°
RMS Residual
0.70 sec
Last Updated
2024-08-06 20:32:52 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Levuka, Fiji?

The magnitude 4.0 earthquake that struck 204 km ENE of Levuka, Fiji on June 1, 2024 at 22:49 UTC had a depth of 548.4 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.1 one earlier?

No. This magnitude 4.0 earthquake is an aftershock of the larger magnitude 5.1 mainshock that occurred earlier 226 km E of Levuka, Fiji. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000mqz3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, June 1, 2024). M4.0 Earthquake 204 km ENE of Levuka, FijiJune 1, 2024. Retrieved August 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000mqz3/