Is the mysterious fog in Wuhan related to the earthquake?

Wuhan Meteorology: Warmly remind that today's smog weather may be due to the diffusion of smoke in the air, the accumulation of pollutant particles, which can not spread, forming a sunshade layer, and the sunlight refracts and reflects in the pollutants many times, resulting in the sky being khaki and the air slightly pungent. It is recommended that patients with respiratory diseases go out as little as possible to avoid physical discomfort.

It's definitely not related to the earthquake. The crust of Wuhan is the most stable. Don't worry! ! !