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How do the Kamchatka Peninsula and Kuril Islands border the Sea of Okhotsk?

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Vertical physical map showing the seas of Japan and Okhotsk, highlighting underwater basins, trenches, and ridges, as well as the coastlines and boundaries of Russia, China, North Korea, South Korea, and Japan. Major cities, islands, and peninsulas such as Vladivostok, Tokyo, Hokkaido, Sakhalin, Kamchatka Peninsula, and the Kuril Islands are labeled. Water depths are indicated with color shading, and an inset locator map shows the region's position in East Asia.
Sea of Okhotsk

The Kamchatka Peninsula and the Kuril Islands serve as the eastern and southeastern boundaries of the Sea of Okhotsk, respectively.1

  • Kamchatka Peninsula: Located in far eastern Russia, this peninsula forms the eastern border of the sea. It stretches approximately 750 miles north-to-south, separating the Sea of Okhotsk on its west from the Pacific Ocean and the Bering Sea on its east.123
  • Kuril Islands: This archipelago extends 750 miles from the southern tip of the Kamchatka Peninsula to the northeastern corner of Hokkaido, Japan. By forming this chain, the islands act as a physical barrier that separates the Sea of Okhotsk from the Pacific Ocean.41