4.1

M4.1 Earthquake in the Fiji regionOctober 18, 2024

2024-10-18 19:06:45 UTC (2024-10-18) · approx. 7:06 AM UTC-12 local

MagnitudeM4.1(mb)
Time19:06 UTC7:06 AM UTC-12
Depth614.8 kmdeep-focus
Coordinates-18.580°, -177.481°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 18, 2024 at 19:06 UTC, a magnitude 4.1 deep-focus earthquake struck in the Fiji region, at a depth of 614.8 km and coordinates -18.5804°, -177.4806°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -18.58°, -177.48°

Earthquake Details

Magnitude
4.1 mb
Depth
614.8 km
deep-focus
Location
-18.5804°N
-177.4806°E

Technical Information

Event ID
us7000nqf1
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
18
Azimuthal Gap
132.0°
Min Station Distance
7.170°
RMS Residual
0.67 sec
Last Updated
2024-12-26 23:03:28 UTC

Common Questions

How strong was the magnitude 4.1 earthquake in the Fiji region?

The magnitude 4.1 earthquake that struck in the Fiji region on October 18, 2024 at 19:06 UTC had a depth of 614.8 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000nqf1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, October 18, 2024). M4.1 Earthquake in the Fiji regionOctober 18, 2024. Retrieved December 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nqf1/