M5.9 earthquake – Nemuro, Japan (Updated)

INTERNAL NOTE: This is suppose to be the update for earthquake:

M5.9 earthquake hits 90 km SE of Nemuro, Japan on Wednesday, June 18, 2025 at 23:08 UTC

Origin quake event ID: us6000ql4i and variable set as: us6000ql4i
Updated quake event ID: us6000ql4i
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An M5.9 earthquake was recorded at 23:08 UTC on June 18, 2025, approximately 90 km (56 miles) southeast of Nemuro, Japan. The earthquake struck at a shallow depth of 12.9 km (8 miles).

The coordinates for this event were 42.9°N, 146.5°E, placing the epicenter offshore, southeast of the city of Nemuro, in the far eastern part of Hokkaido, Japan. Nemuro is a coastal city with a significant maritime focus and population centers are spread along the nearby coastline.

Given the offshore location in proximity to populated areas, typical regional infrastructure could include ports, fisheries, coastal highways, and energy facilities that support local industry and transportation.

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 reached IV, with no felt reports received. The significance index is 536 (on a scale that runs through 1 000), based on magnitude, felt reports, and estimated impact.

This region of northern Japan is part of the seismically active Pacific Ring of Fire, where the Pacific Plate subducts beneath the North American Plate, resulting in frequent earthquake activity.

This information was last updated at 00:08 UTC on June 19, 2025.

Source: https://earthquake.usgs.gov/earthquakes/eventpage/us6000ql4i