A moderate seismic event registered 4.2 magnitude off the East Coast of Hokkaido, Japan. The tremor was recorded by monitoring agencies on February 04, 2026, at 03:09 UTC.
The epicenter was determined to be situated deep beneath the ocean floor at coordinates 42.50° North and 145.80° East. Initial geophysical assessment places the focal depth of the earthquake at approximately 35.0 kilometers.
At the time of the event, atmospheric conditions near the point of origination were characterized by a clear sky and cold temperatures, registering around 1.3°C, accompanied by light westerly winds.
Earthquakes in this specific region of the Pacific are common due to the proximity of major tectonic boundaries. A 4.2 magnitude event is generally considered light to moderate.
Our editorial team carefully monitors seismic data to provide in-depth analysis. Explore our real-time interactive Live Map for more details.