Tangshan earthquake has a precursor. Do you know that Wenchuan earthquake is a precursor?

In fact, there is no rule at all. The situation in Tangshan may not be a reference. There are many precursors in Tangshan. Sometimes there are omens but no earthquakes, what foreshocks are not foreshocks, and sometimes there are no foreshocks. I wonder what the earth thinks. Prevention is better. Pay attention to the smell of the source, the sound of the earth, dogs and cats and the kinds of fish you eat. And a compass. I think this year will be fine, because the master said that this year is the year of great changes in China.