M4.4 Earthquake 43 km SE of Onagawa Chō, Japan — July 22, 2024
2024-07-22 23:27:12 UTC (2024-07-22) · approx. 8:27 AM UTC+9 local
On July 22, 2024 at 23:27 UTC, a magnitude 4.4 intermediate depth earthquake struck 43 km SE of Onagawa Chō, Japan, at a depth of 71.8 km and coordinates 38.2062°, 141.8385°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
141.8385°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Onagawa Chō, Japan?
The magnitude 4.4 earthquake that struck 43 km SE of Onagawa Chō, Japan on July 22, 2024 at 23:27 UTC had a depth of 71.8 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 4.4 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000nemz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 22, 2024). M4.4 Earthquake 43 km SE of Onagawa Chō, Japan — July 22, 2024. Retrieved October 8, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nemz/