Why are there sometimes strong winds, haze, low temperatures, etc. before earthquakes?

Before earthquakes, abnormal phenomena such as strong winds, haze, and low temperatures sometimes occur, which may be due to the following reasons:

1. Abnormal ground atmosphere: Mist from underground before earthquakes, also known as ground Aerosol or ground fog. This kind of fog comes in a variety of colors, including white, black, yellow, and sometimes colorless. It often appears a few days to a few minutes before an earthquake. It is often accompanied by a strange smell, sometimes accompanied by sound or high temperature.

2. Earthquake anomalies: shaking on the ground before an earthquake. It is a well-known phenomenon that the ground vibrates violently during earthquakes. But before an earthquake occurs, sometimes the ground is shaken. This shaking is different from that during an earthquake. It swings very slowly and is often not recorded by seismometers, but many people can feel it.

3. Abnormal floor drum: a bulge appears on the ground before an earthquake. About half a year before the 7.9-magnitude Luhuo earthquake in Sichuan on February 6, 1973, a bulge with a diameter of about 0.002 meters and a center depth of about 0.005 meters appeared on a lawn in Tuoba District, Ganzi County. After a few days, the skin of the bulge fell off and bulged. Then disappear.

4. Groundwater anomalies: Sudden rise and fall of groundwater levels, well water swirling, bubbling, color change, smell change, etc. may mean that an earthquake is about to occur.

5. Meteorological abnormalities: Before earthquakes, there are often abnormal weather conditions. For example: it is muggy before the earthquake, people are anxious and restless, there is a long drought without rain or continuous rain, there is heavy downpour for no reason, it is warm in winter and cool in summer or ground fog, etc.

Please note that these phenomena do not occur in every earthquake, so the occurrence of these phenomena does not mean that an earthquake will definitely occur. At the same time, these phenomena are not specific manifestations of earthquakes, so the occurrence of earthquakes cannot be determined based on these phenomena alone. If you suspect there is a possibility of an earthquake, you should immediately report it to the local earthquake monitoring agency and follow the guidance of professionals.