There were precursors to the Tangshan earthquake. Were there any precursors to the Wenchuan earthquake?

1. A lot of toads appeared on the highway

Three days before the earthquake, a lot of toads appeared on the highway. These animals once crawled in pairs on the streets. Some pedestrians on the roadside felt very frightened after seeing them, and then walked around one after another.

Some cars drove over the toads, leaving blood on the ground. Many people feel like their scalps are numb when they see such a scene.

2. Many people saw densely flying eagles

When an earthquake occurred, there were countless eagles circling in some villages. When the villagers heard about this, they were all very curious. Many people came out to see these eagles.

When the earthquake occurred, these people were not trapped by the collapsed houses because they were outside. After the earthquake, many people felt so frightened that they broke into cold sweats when they saw the mess around them.

If it weren’t for these eagles, they might be trapped under these ruins. At that time, these villagers were very grateful to these flying eagles. If they were not attracted by their behavior, I am afraid the villagers would not be able to escape.

3. Earthquake clouds appeared

Before the earthquake, some students saw earthquake clouds floating in the sky. These clouds are like fish scales, densely packed. However, this kind of cloud appears only for a short time. When a burst of air blows over the sky, the cloud is also blown away. The sun was still relatively dark at that time and there was not enough light. Many students just glanced at it. Most people just thought that these clouds were a bit strange and did not think about it seriously.

Extended information:

Common precursors of earthquakes:

1. Outflow of well water

Groundwater includes well water, spring water, etc. The main abnormalities include cloudiness, bubbling, turning flowers, temperature rise, color change, taste change, sudden rise, sudden drop, sudden drying up or gush of springs, etc.

2. Abnormal animals

Animals are over-excited, frightened or slow in action. For example, cows and horses are panicking and barking; fish are floating in groups and jumping out of the water, etc.

3. Fog appears

Fog from underground appeared before the earthquake. 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, accompanied by strange smells, sounds, or high temperatures.

4. Abnormal ground sounds

When an earthquake occurs, longitudinal waves radiate from the source, causing the air to vibrate and make sounds, like cannons and thunder, or heavy vehicles driving, strong winds, etc. .

5. Abnormal ground light

The light coming from the underground before the earthquake is mainly red and white. They come in different shapes, including ribbon, spherical, columnar, etc. They usually appear a few hours to a few minutes before the earthquake and last for a few seconds.

6. Electromagnetic anomalies

Household appliances such as radios, televisions, fluorescent lamps, etc. have abnormalities.

The radio fails, the fluorescent lamp self-illuminates, the electronic alarm clock fails, etc. It also includes abnormal operation of electrical equipment, such as abnormalities in microwave stations and interference in radio plants.

Baidu Encyclopedia-Wenchuan Earthquake