所谓地震预报就是对什么地方未来什么时间可能要发生多大震级的地震做出预报。地震预报必须包括三个要素即时间、地点和大小。地震预报根据时间长短可以分为长期预报、中期预报、短期预报和临震预报四种。对某地几年至几十年甚至上百年内可能发生的地震作出预报,叫地震长期预报;对某地几个月至几年内可能发生的地震作出预报,称地震中期预报;对某地几天至几十天甚至几个月内可能发生的地震作出预报,叫地震短期预报;对某地几小时至几天内可能发生的地震作出预报,叫临震预报。不管哪种预报,都须由规定部门按规定渠道发布,任何个人无权发布地震预报。地震是一种常见的自然现象。据研究,全世界平 The so-called earthquake prediction is to predict where earthquakes may occur at what time in the future. Earthquake prediction must include three elements: time, place and size. According to the length of time, the earthquake prediction can be divided into four types: long-term forecast, mid-term forecast, short-term forecast and imminent earthquake forecast. Earthquakes that may occur from a few years to a few decades or even a hundred years in a certain place are called long-term earthquake prediction; the earthquakes that may occur in a certain area from a few months to a few years are predicted and are called medium-term earthquake prediction; The earthquakes that may occur in days to tens of days or even months may be predicted by a short-term earthquake prediction. Earthquakes that may occur within a few hours to several days at a certain place will be predicted and predicted by the imminent earthquake. No matter what kind of forecast, must be issued by the prescribed department channels, no individual has the right to release earthquake prediction. Earthquakes are a common natural phenomenon. According to research, the world is flat