地震预警与地震预报或预测不同。地震预报是对尚未发生、但有可能发生的地震事件事先发出通告:地震预警则是指在地震发生以后,抢在地震波传播到设防地区前,向设防地区提前几秒至数十秒发出警报,以告知当地人们采取应急措施,以便减少伤亡。目前,地震预报仍是世界难题,而地震预警已经在日本、美国、墨两哥、土耳其等国家形成 Earthquake warnings are different from earthquake prediction or prediction. Earthquake prediction is an advance notice of earthquake events that have not yet occurred but are likely to occur. Earthquake early warning refers to sending an alarm a few seconds to tens of seconds ahead of a fortified area before the earthquake waves spread to a fortified area after the earthquake. To inform local people to take emergency measures to reduce casualties. At present, earthquake prediction is still a worldwide problem, and earthquake warning has been formed in Japan, the United States, Mexico, Mexico and Turkey and other countries