M4.2 Earthquake 100 km ENE of Hasaki, Japan — August 5, 2020
2020-08-05 18:53:03 UTC (2020-08-05) · approx. 3:53 AM UTC+9 local
On August 5, 2020 at 18:53 UTC, a magnitude 4.2 shallow crustal earthquake struck 100 km ENE of Hasaki, Japan, at a depth of 28.8 km and coordinates 36.2135°, 141.7762°.
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
141.7762°E
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Common Questions
How strong was the magnitude 4.2 earthquake near Hasaki, Japan?
The magnitude 4.2 earthquake that struck 100 km ENE of Hasaki, Japan on August 5, 2020 at 18:53 UTC had a depth of 28.8 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 4.2 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: us6000bcpb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, August 5, 2020). M4.2 Earthquake 100 km ENE of Hasaki, Japan — August 5, 2020. Retrieved October 21, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bcpb/