4.3

M4.3 Earthquake 100 km W of Kirakira, Solomon IslandsSeptember 10, 2025

2025-09-10 20:02:11 UTC (2025-09-10) · approx. 7:02 AM UTC+11 local

MagnitudeM4.3(mb)
Time20:02 UTC7:02 AM UTC+11
Depth70.1 kmintermediate depth
Coordinates-10.286°, 161.022°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 10, 2025 at 20:02 UTC, a magnitude 4.3 intermediate depth earthquake struck 100 km W of Kirakira, Solomon Islands, at a depth of 70.1 km and coordinates -10.2863°, 161.0221°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -10.29°, 161.02°

Earthquake Details

Magnitude
4.3 mb
Depth
70.1 km
intermediate depth
Location
-10.2863°N
161.0221°E

Technical Information

Event ID
us6000rej3
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
20
Azimuthal Gap
133.0°
Min Station Distance
1.353°
RMS Residual
0.50 sec
Last Updated
2025-12-03 03:57:56 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Kirakira, Solomon Islands?

The magnitude 4.3 earthquake that struck 100 km W of Kirakira, Solomon Islands on September 10, 2025 at 20:02 UTC had a depth of 70.1 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000rej3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, September 10, 2025). M4.3 Earthquake 100 km W of Kirakira, Solomon IslandsSeptember 10, 2025. Retrieved December 3, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000rej3/