M4.1 Earthquake 113 km E of Hirara, Japan — April 19, 2022
2022-04-19 22:09:30 UTC (2022-04-19) · approx. 6:09 AM UTC+8 local
On April 19, 2022 at 22:09 UTC, a magnitude 4.1 shallow crustal earthquake struck 113 km E of Hirara, Japan, at a depth of 10.0 km and coordinates 24.9960°, 126.4079°.
Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
126.4079°E
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Common Questions
How strong was the magnitude 4.1 earthquake near Hirara, Japan?
The magnitude 4.1 earthquake that struck 113 km E of Hirara, Japan on April 19, 2022 at 22:09 UTC had a depth of 10.0 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 4.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000hfmn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 19, 2022). M4.1 Earthquake 113 km E of Hirara, Japan — April 19, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hfmn/