4.4

M4.4 Earthquake in the Fiji regionOctober 25, 2022

2022-10-25 20:59:09 UTC (2022-10-25) · approx. 8:59 AM UTC-12 local

MagnitudeM4.4(mb)
Time20:59 UTC8:59 AM UTC-12
Depth580.3 kmdeep-focus
Coordinates-20.617°, -178.469°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 25, 2022 at 20:59 UTC, a magnitude 4.4 deep-focus earthquake struck in the Fiji region, at a depth of 580.3 km and coordinates -20.6169°, -178.4693°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -20.62°, -178.47°

Earthquake Details

Magnitude
4.4 mb
Depth
580.3 km
deep-focus
Location
-20.6169°N
-178.4693°E

Technical Information

Event ID
us7000ikc1
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
33
Azimuthal Gap
71.0°
Min Station Distance
3.103°
RMS Residual
0.57 sec
Last Updated
2023-01-03 15:23:39 UTC

Common Questions

How strong was the magnitude 4.4 earthquake in the Fiji region?

The magnitude 4.4 earthquake that struck in the Fiji region on October 25, 2022 at 20:59 UTC had a depth of 580.3 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000ikc1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 25, 2022). M4.4 Earthquake in the Fiji regionOctober 25, 2022. Retrieved January 3, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ikc1/