M4.0 Earthquake in the Volcano Islands, Japan region — March 31, 2024
2024-03-31 21:48:00 UTC (2024-03-31) · approx. 6:48 AM UTC+9 local
On March 31, 2024 at 21:48 UTC, a magnitude 4.0 intermediate depth earthquake struck in the Volcano Islands, Japan region, at a depth of 118.6 km and coordinates 23.2782°, 142.3437°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.3437°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake in the Volcano Islands, Japan region?
The magnitude 4.0 earthquake that struck in the Volcano Islands, Japan region on March 31, 2024 at 21:48 UTC had a depth of 118.6 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000ma8c). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 31, 2024). M4.0 Earthquake in the Volcano Islands, Japan region — March 31, 2024. Retrieved June 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000ma8c/