M4.4 Earthquake 48 km SSE of Shizunai-furukawach?, Japan — July 3, 2021
2021-07-03 17:19:53 UTC (2021-07-03) · approx. 3:19 AM UTC+10 local
On July 3, 2021 at 17:19 UTC, a magnitude 4.4 shallow crustal earthquake struck 48 km SSE of Shizunai-furukawach?, Japan, at a depth of 55.5 km and coordinates 41.9113°, 142.5143°.
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
142.5143°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Shizunai-furukawach?, Japan?
The magnitude 4.4 earthquake that struck 48 km SSE of Shizunai-furukawach?, Japan on July 3, 2021 at 17:19 UTC had a depth of 55.5 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.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000eihj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 3, 2021). M4.4 Earthquake 48 km SSE of Shizunai-furukawach?, Japan — July 3, 2021. Retrieved September 10, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000eihj/