?? 2000-05-15 19:472000? 5? 15? 19? 47?
????
???? ??
????? ??? ??? m/sec? ????? ?????? ?(??)??? ????. ?? 1m/sec? 1.944???. ??? ?? ??? mile/h? ????? 100mile/h?? 44.7m/sec? ??.
???(???? ??)
??? ??? 弱震…??? ??
?? ??? ??? ?? 2.7 ??
????? ?? 5.0 ??
??