Subregions- eastern Honshu, Japan
 - eastern Sea of Japan
- east of the Kuril Islands
- Hokkaido, Japan region
- Kamchatka Peninsula, Russia
- Kuril Islands
- near the east coast of Honshu, Japan
- near the east coast of the Kamchatka Peninsula, Russia
- near the south coast of Honshu, Japan
- near the west coast of Honshu, Japan
- northwest of the Kuril Islands
- off the coast of Hokkaido, Japan
- off the east coast of Honshu, Japan
- off the east coast of the Kamchatka Peninsula, Russia
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