Shallow M6.1 earthquake hits offshore Hasaki, Japan on November 6, 2026 (Updated)
A shallow earthquake of magnitude M6.1 was recorded at 10:39 UTC on November 6, 2026, approximately 144 km (89 miles) southeast of Hasaki, Japan. The event was registered at a depth of 29.0 km (18.0 miles), according to data provided by the USGS.
The coordinates (142.1°E, 35.0°N) place the epicenter in the Pacific Ocean, well offshore and southeast of Hasaki, within the offshore region of eastern Honshu. This area is sparsely populated, with the nearest significant settlement being Hasaki on the Japanese coast to the northwest.
Given its offshore location near eastern Honshu, potential infrastructure of concern includes shipping routes, fisheries, ports, and energy facilities along the Pacific coast of Japan.
There is no tsunami threat associated with this earthquake, based on its location and available data.
USGS issued a green alert for this event, indicating a low likelihood of casualties or damage. The maximum estimated intensity was 0, and 22 felt reports were collected. The significance index is 581 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.
Japan lies along the Pacific “Ring of Fire,” an active tectonic region characterized by frequent and significant seismic activity, resulting from the subduction of the Pacific Plate beneath the North American and Eurasian Plates.
This information was last updated at 12:29 UTC on November 6, 2026.