4.0

M4.0 Earthquake 215 km ENE of Levuka, Fiji — June 23, 2021

2021-06-23 23:24:27 UTC (2021-06-23) · approx. 11:24 AM UTC-12 local

MagnitudeM4.0(mb)
Time23:24 UTC≈ 11:24 AM UTC-12
Depth568.9 kmdeep-focus
Coordinates-17.680°, -178.692°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 23, 2021 at 23:24 UTC, a magnitude 4.0 deep-focus earthquake struck 215 km ENE of Levuka, Fiji, at a depth of 568.9 km and coordinates -17.6803°, -178.6924°.

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.

Map showing earthquake epicenter at -17.68°, -178.69°

Earthquake Details

Magnitude
4.0 mb
Depth
568.9 km
deep-focus
Location
-17.6803°N
-178.6924°E

Technical Information

Event ID
us6000eqjy
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Azimuthal Gap
168.0°
Min Station Distance
3.103°
RMS Residual
0.38 sec
Last Updated
2021-08-27 18:58:44 UTC

Common Questions

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

The magnitude 4.0 earthquake that struck 215 km ENE of Levuka, Fiji on June 23, 2021 at 23:24 UTC had a depth of 568.9 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.

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: us6000eqjy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, June 23, 2021). M4.0 Earthquake 215 km ENE of Levuka, Fiji — June 23, 2021. Retrieved August 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eqjy/