What was the temperature during the Tangshan earthquake?

The Tangshan earthquake occurred at 3 am on July 28th, and the weather was hot and muggy. However, in the case of continuous rain at the end of July and the beginning of August, it is normal for the weather to be sultry, which does not mean that an earthquake will definitely occur. We can combine various earthquake precursors to analyze whether there is the possibility of an earthquake and how likely it is.

Earthquake precursor refers to the abnormal phenomenon before the earthquake. Under the action of in-situ stress, in the process of stress and strain gradually accumulating and strengthening, rock mass will cause the occurrence of materials around the source, such as seismic activity, obvious changes in the surface, geophysical anomalies such as geomagnetism, geoelectricity, gravity, groundwater level, hydrochemistry, and abnormal animal behavior. Generally speaking, these abnormal changes related to the preparation and occurrence of earthquakes are called earthquake precursors (also known as earthquake anomalies). It includes microscopic earthquake anomalies and macroscopic earthquake anomalies.