M4.7 Earthquake 150 km SW of Buala, Solomon Islands — October 31, 2021
2021-10-31 02:55:44 UTC (2021-10-31) · approx. 1:55 PM UTC+11 local
On October 31, 2021 at 02:55 UTC, a magnitude 4.7 shallow crustal earthquake struck 150 km SW of Buala, Solomon Islands, at a depth of 32.4 km and coordinates -8.9141°, 158.4643°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
158.4643°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.7 earthquake near Buala, Solomon Islands?
The magnitude 4.7 earthquake that struck 150 km SW of Buala, Solomon Islands on October 31, 2021 at 02:55 UTC had a depth of 32.4 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -8.9141°, 158.4643°, which is 150 km SW of Buala, Solomon Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000fq7f). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 31, 2021). M4.7 Earthquake 150 km SW of Buala, Solomon Islands — October 31, 2021. Retrieved January 14, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fq7f/