据日本共同社消息 ,日本气象厅日前决定 ,2 0 0 3年 4月前在全国 80处地方设置地震速报器。这种地震速报器可在地震发生后几十秒内发出较为详细的地震资料。预计安装这些仪器的总费用为 4 1 1亿日元 (约合 3 42万美元 )。近年来 ,日本通过改进和更新地震监测设备 ,来强化对东海 According to Japan’s Kyodo news agency, the Japan Meteorological Agency has decided a few days ago by April 2003 in the country 80 earthquake alarm set. Such earthquake rulers can send more detailed seismic data within tens of seconds after the earthquake. The total cost of installing these instruments is estimated at 4.1 1 billion yen (about $ 42.2 million). In recent years, Japan has strengthened the East China Sea by improving and updating seismic monitoring equipment