Why does the earthquake "prediction" in China always use hindsight?

First of all, it is not a "forecast" to report a magnitude earthquake in a certain place on the radio. This is a notice. Just like telling you that it is raining heavily somewhere, it doesn't mean that it will rain heavily somewhere tomorrow. And there is basically no earthquake prediction in the world. Earthquakes are frequent, such as the Great Hanshin Earthquake in Japan in the 1990s, which caused thousands of deaths and was not predicted in advance.

Secondly, the accuracy of earthquake prediction is very low (only China successfully predicted the "Haicheng earthquake" during the Cultural Revolution, which is similar to a blind cat meeting a dead mouse. However, because of the complex geological structure, your experience in Haicheng may not be applicable to other places, and soon there was a Tangshan earthquake with hundreds of thousands of deaths. )