海保と米海軍の言ってる衝突時刻が食い違ってるらしい
海保→午前1:30
米海軍→午前2:30

The U.S. Navy said the collision happened at about 2:30 a.m. local time (1730 GMT Friday),
while the Japanese Coast Guard said it took place at 1:30 a.m. local time.

http://www.reuters.com/article/us-usa-navy-asia-idUSKBN199020