【摘要】 地震是破坏性最大的自然灾害之一,它具有突发性、毁灭性、次灾严重、无灾有害等特点,会给人们的生命财产造成巨大的损失。为了达到减轻地震灾害的目的,除了加强工程结构抗震设计外,人们最先想到的就是地震预报。如果能预知地震的发生时间与地点而先将人员撤离地震区、关闭次生灾害源,无疑会将地震灾害降到最低。但地震预报这个世界性的科学难题在短期内很难取得突破性进展。为此,许多国家进而投资发展地震预警系统和地震应急控制系统。本文对国内外地震预警方法研究现状进行了阐述,并对地震预警的发展趋势进行了展望。更多还原

【Abstract】 Earthquake is one of the most destructive natural disasters,it has the character of suddenness、 fatality、 Serious secondary disaster and non-disaster but to be harmful.In order to mitigate earthquake disasters,besides strengthening the engineering structure,the earthquake prediction is the first choice for the people,if we can predict the earthquake’s time and location in advance,then we are able to evacuate the people from the source region and avoid the secondary disaster to minimize the earthquake disaster.As the earthquake prediction is very difficult to make significant progress,so many countries turn to develop earthquake early warning system and earthquake emergency system.In this paper,the authors analyze the current development of the earthquake early warning system in the world.Its prospects are also discussed briefly.更多还原