Earthquake precursor

1. Earthquake precursors that people's sensory organs should be able to directly perceive: (such as groundwater anomalies, animal anomalies, ground sounds, ground light, etc. )

2. There should be a low-frequency earthquake before a strong earthquake, so learn more about the news.

Remarks: Learn more about the response measures to prevent and reduce disasters when the earthquake comes.

In addition:

Precursors of volcanic eruption:

1. Smoke and a small amount of dust came out of the crater, and sulfur smell appeared in the area around the crater, and low-frequency earthquakes occurred continuously.

Tsunami precursor:

1. Bubbles keep appearing on the sea surface, and the sea water suddenly recedes.

Generally speaking, survival knowledge is very important, I hope it will be useful to you. thank you