M4.5 Earthquake 114 km NW of Gizo, Solomon Islands — April 21, 2021
2021-04-21 23:19:33 UTC (2021-04-21) · approx. 9:19 AM UTC+10 local
On April 21, 2021 at 23:19 UTC, a magnitude 4.5 shallow crustal earthquake struck 114 km NW of Gizo, Solomon Islands, at a depth of 61.1 km and coordinates -7.3530°, 156.1315°.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
156.1315°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Gizo, Solomon Islands?
The magnitude 4.5 earthquake that struck 114 km NW of Gizo, Solomon Islands on April 21, 2021 at 23:19 UTC had a depth of 61.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -7.3530°, 156.1315°, which is 114 km NW of Gizo, Solomon Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000e3j2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, April 21, 2021). M4.5 Earthquake 114 km NW of Gizo, Solomon Islands — April 21, 2021. Retrieved July 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e3j2/