by Eli Kintisch , With reporting by Dennis Normile on 21 March 2011, 5:49 PM
Japan's half-billion-dollar deep-sea drilling vessel was also a casualty of the tsunami following the massive 11 March earthquake.
The Chikyu was docked at Hachinohe, 250 kilometers north of Sendai, on 11 March when the rise‑and‑fall of water levels caused it to scrape bottom. That collision snapped off one of the six thrusters that maintain the ship's position while drilling, a feature that makes it so valuable for deep-sea drilling. As a result, a 68-day research expedition to study the deep coal bed biosphere off Shimokita, Japan, has been canceled.
Asahiko Taira, a vice president of the Japan Agency for Marine‑Earth Science and Technology, said that it will take 2 to 3 months to repair the vessel. No word on any rescheduling of the expedition, which was sponsored by the international Integrated Ocean Drilling Program.
At the time of the tsunami, Chikyu scientists were hosting a class of schoolchildren on a field trip. "The tsunami washed into the harbor; there was no way to escape," Taira told Science. All those aboard evacuated safely.
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http://news.sciencemag.org/scienceinsider/2011/03/quake-scuttles-mission-to-study.html