M4.6 Earthquake 75 km E of Kirakira, Solomon Islands — July 28, 2021
2021-07-28 04:19:21 UTC (2021-07-28) · approx. 3:19 PM UTC+11 local
On July 28, 2021 at 04:19 UTC, a magnitude 4.6 shallow crustal earthquake struck 75 km E of Kirakira, Solomon Islands, at a depth of 10.0 km and coordinates -10.4334°, 162.6111°.
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
162.6111°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 75 km E of Kirakira, Solomon Islands on July 28, 2021 at 04:19 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -10.4334°, 162.6111°, which is 75 km E 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: us6000f1x7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 28, 2021). M4.6 Earthquake 75 km E of Kirakira, Solomon Islands — July 28, 2021. Retrieved October 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f1x7/