M4.0 Earthquake 28 km SSW of Makurazaki, Japan — May 31, 2022
2022-05-31 17:23:03 UTC (2022-05-31) · approx. 2:23 AM UTC+9 local
On May 31, 2022 at 17:23 UTC, a magnitude 4.0 intermediate depth earthquake struck 28 km SSW of Makurazaki, Japan, at a depth of 143.0 km and coordinates 31.0184°, 130.2541°.
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
130.2541°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Makurazaki, Japan?
The magnitude 4.0 earthquake that struck 28 km SSW of Makurazaki, Japan on May 31, 2022 at 17:23 UTC had a depth of 143.0 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: us7000henn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 31, 2022). M4.0 Earthquake 28 km SSW of Makurazaki, Japan — May 31, 2022. Retrieved August 6, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000henn/