Earthquake Early Warning and Tsunami Warning of the Japan Meteorological Agency, and Their Performance in the 2011 off the Pacific Coast of Tohoku Earthquake ( Mw 9.0)
Earthquake Early Warning and Tsunami Warning of the Japan Meteorological Agency, and Their Performance in the 2011 off the Pacific Coast of Tohoku Earthquake ( Mw 9.0)
复制标题
日本气象厅地震预警和海啸预警及其在2011年东北太平洋沿岸地震（Mw 9.0）中的表现
DOI：
10.1007/978-3-642-12233-0_1
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
and T. Ozaki
中科院分区：
文献类型：
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作者：
Hoshiba;M.;and T. Ozaki
2011年3月11日，太平洋沿岸的东北地震（里氏9.0级）在日本东北部地区引起强烈的地面运动，并引发了毁灭性的海啸，造成超过16000人死亡。在强烈的地面运动袭击城市之前，日本气象厅（JMA）向东北地区的公众发布了地震预警（EEW）公告；警报随后通过电视、广播和手机信息自动播放。日本气象厅还在地震发生约3分钟后的14时49分（日本标准时间）根据震源参数（即位置、震源深度和震级）发布了第一次海啸预警/公告，并利用海平面观测数据升级了预警/公告。本文报告了EEW和海啸预警/报告的表现，从地震中吸取的教训，以及改进预警系统的方向。
The 2011 off the Pacific coast of Tohoku Earthquake (M9.0) occurred on March 11, 2011, causing strong ground motion around northeastern Japan, and generating a devastating tsunami, that killed more than 16,000 people. Before the strong ground motion hit the cities, the Japan Meteorological Agency (JMA) issued Earthquake Early Warning (EEW) announcements to the general public of the Tohoku district; the warning then was automatically broadcast through TV, radio and cellular phone messages. JMA also issued the first tsunami warnings/advisories based on hypocentral parameters (i.e., location, focal depth and magnitude) at 14:49 (Japan Standard Time), which was about three minutes after the occurrence of the earthquake, and then upgraded them using sea-level observation data. This paper reports on the performance of the EEW and the tsunami warnings/advisories, the lessons learned from the earthquake, and a direction for improving the warning systems.