M4.3 Earthquake 63 km WNW of Kirakira, Solomon Islands — October 15, 2025
2025-10-15 20:12:17 UTC (2025-10-15) · approx. 7:12 AM UTC+11 local
On October 15, 2025 at 20:12 UTC, a magnitude 4.3 intermediate depth earthquake struck 63 km WNW of Kirakira, Solomon Islands, at a depth of 84.2 km and coordinates -10.2401°, 161.3778°.
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.
Earthquake Details
161.3778°E
Technical Information
Common Questions
How strong was the magnitude 4.3 earthquake near Kirakira, Solomon Islands?
The magnitude 4.3 earthquake that struck 63 km WNW of Kirakira, Solomon Islands on October 15, 2025 at 20:12 UTC had a depth of 84.2 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.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000rhdg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, October 15, 2025). M4.3 Earthquake 63 km WNW of Kirakira, Solomon Islands — October 15, 2025. Retrieved January 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000rhdg/