M4.0 Earthquake 43 km ENE of Mutsu, Japan — April 29, 2022
2022-04-29 19:26:14 UTC (2022-04-29) · approx. 4:26 AM UTC+9 local
On April 29, 2022 at 19:26 UTC, a magnitude 4.0 intermediate depth earthquake struck 43 km ENE of Mutsu, Japan, at a depth of 72.9 km and coordinates 41.4066°, 141.7069°.
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
141.7069°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Mutsu, Japan?
The magnitude 4.0 earthquake that struck 43 km ENE of Mutsu, Japan on April 29, 2022 at 19:26 UTC had a depth of 72.9 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: us7000h7ir). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 29, 2022). M4.0 Earthquake 43 km ENE of Mutsu, Japan — April 29, 2022. Retrieved July 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000h7ir/