Honshu, Japan's main island, lies at the intersection between three tectonic plates – Eurasian, Philippine and North American.

Source: https://www.dailymail.co.uk/sciencetech/article-11723891/Where-worlds-earthquake-hotspots.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

The island used to be inhabited, but Japanese authorities had to evacuate civilians to Honshu - Japan's main island - in July 1944.

Source: https://www.express.co.uk/news/world/1833515/new-island-japan-Iwoto-Ogasawara-islands

The Mikimoto Tatoku Pearl Farm, established in 1896, is in Shima on Japan’s main island of Honshu.

Source: https://www.nytimes.com/2023/05/26/fashion/jewelry-mikimoto-cultured-pearls-japan.html

Tropical Storm Lan could approach the country's main island of Honshu next week, when many people are expected to travel for the Bon holidays.

Source: https://www.japantimes.co.jp/news/2023/08/08/japan/tropical-storm-khanun-second-storm/