Can Sonar Kill Whales? (Slate)

この間の関連記事。

The sonar system in question, called SURTASS LFA, uses low-frequency waves, which can travel great distances underwater without losing strength. (...)
They [environmentalists] claim that sound bursts near a SURTASS LFA-equipped ship can register at upward of 215 decibels and persist at around 160 dbs hundreds of miles from the source. Even the most thunderous rock concert tops out somewhere around 150 dbs, while the pain threshold is 125 dbs.