M4.6 Earthquake 55 km WNW of Kirakira, Solomon Islands — September 13, 2022
2022-09-13 21:57:20 UTC (2022-09-13) · approx. 8:57 AM UTC+11 local
On September 13, 2022 at 21:57 UTC, a magnitude 4.6 intermediate depth earthquake struck 55 km WNW of Kirakira, Solomon Islands, at a depth of 77.3 km and coordinates -10.3386°, 161.4249°. This earthquake was detected by 44 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
161.4249°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Kirakira, Solomon Islands?
The magnitude 4.6 earthquake that struck 55 km WNW of Kirakira, Solomon Islands on September 13, 2022 at 21:57 UTC had a depth of 77.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -10.3386°, 161.4249°, which is 55 km WNW of Kirakira, Solomon Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000i7sc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 13, 2022). M4.6 Earthquake 55 km WNW of Kirakira, Solomon Islands — September 13, 2022. Retrieved November 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i7sc/