4.0

M4.0 Earthquake south of the Fiji IslandsApril 27, 2024

2024-04-27 22:25:02 UTC (2024-04-27) · approx. 10:25 AM UTC-12 local

MagnitudeM4.0(mb)
Time22:25 UTC10:25 AM UTC-12
Depth317.9 kmdeep-focus
Coordinates-22.499°, -177.895°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 27, 2024 at 22:25 UTC, a magnitude 4.0 deep-focus earthquake struck south of the Fiji Islands, at a depth of 317.9 km and coordinates -22.4993°, -177.8955°.

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 -22.50°, -177.90°

Earthquake Details

Magnitude
4.0 mb
Depth
317.9 km
deep-focus
Location
-22.4993°N
-177.8955°E

Technical Information

Event ID
us6000mw53
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
29
Azimuthal Gap
113.0°
Min Station Distance
2.829°
RMS Residual
0.52 sec
Last Updated
2024-07-02 22:12:56 UTC

Common Questions

How strong was the magnitude 4.0 earthquake south of the Fiji Islands?

The magnitude 4.0 earthquake that struck south of the Fiji Islands on April 27, 2024 at 22:25 UTC had a depth of 317.9 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: us6000mw53). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, April 27, 2024). M4.0 Earthquake south of the Fiji IslandsApril 27, 2024. Retrieved July 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000mw53/