M4.2 Earthquake 10 km NNW of Takayama, Japan — April 18, 2022
2022-04-18 18:49:14 UTC (2022-04-18) · approx. 3:49 AM UTC+9 local
On April 18, 2022 at 18:49 UTC, a magnitude 4.2 intermediate depth earthquake struck 10 km NNW of Takayama, Japan, at a depth of 251.3 km and coordinates 36.2193°, 137.2108°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
137.2108°E
Technical Information
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Common Questions
How strong was the magnitude 4.2 earthquake near Takayama, Japan?
The magnitude 4.2 earthquake that struck 10 km NNW of Takayama, Japan on April 18, 2022 at 18:49 UTC had a depth of 251.3 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000h34q). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, April 18, 2022). M4.2 Earthquake 10 km NNW of Takayama, Japan — April 18, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000h34q/