Breaking news! The Wenchuan mudslide has caused 4 deaths. How to deal with the mudslide?

According to Sichuan Emergency News today, the Wenchuan County Emergency Management Bureau issued a report on the sudden mountain torrents and mud-rock flow disaster in Wenchuan County.

In the early morning of June 27, 2023, due to the impact of short-term heavy rainfall in uninhabited areas in Wenchuan County, flash floods and mudslides occurred in Banzigou, Mianwei Town and Xinqiaogou, Weizhou Town. At present, more than 900 people threatened have been properly relocated and resettled. As of 17:00 on the 27th, 4 people have been killed.

Do you know about mudslides?

How are mudslides formed?

What is the difference between flash floods and mudslides?

"Flash floods" and "mudslides" are like cousins

Looks very similar

But they are different in many aspects such as destructive power and escape.

Similarities:

There are many similarities between mountain torrents and debris flows. For example, the precursors to disasters are similar; the time and area of ​​the outbreak are roughly the same, during the rainy season from June to September; both occur in mountainous areas, and debris flows are sometimes accompanied by mountain torrents; the disasters occur suddenly; the water is turbid, etc.

Differences:

1. The mud and sand mixing ratio is different. The debris flow contains large amounts of large and small stones and mud, and the density of flash flood fluid is less than 1.3 tons/cubic meter.

2. The frequency and recurrence of flash floods are much higher than mudslides.

3. Mudslides are more destructive than mountain torrents. People who are hit and buried by mudslides find it difficult to save themselves and have a low chance of survival.

4. Different ways of escaping from danger. When encountering mountain torrents and mudslides, you should run to the higher places on the hillsides on both sides. When encountering mountain torrents, you can climb up trees or buildings to avoid danger, but when encountering mudslides, it is not advisable because mudslides can destroy everything along the way.

What are the signs of impending flash floods and mudslides?

1. Abnormal river water. If the normal flow of water in the river (ditch) bed suddenly stops or the flood suddenly increases, and there are a lot of firewood and trees, it means that a mudslide has formed in the upper reaches of the river (ditch).

2. Abnormal mountain. There are a lot of white water flows on the mountain, the slope is deformed, bulged, cracked, and even objects on the slope are tilted.

3. Abnormal sound. If you hear a rustling sound on the mountain, but cannot find the source of the sound, it may be the sound of loose sand and rocks flowing, which is a sign of an impending mudslide. If there is a roaring sound or a slight vibration in the ravine or valley, it means that a mudslide is forming.

4. Other abnormal situations: water begins to accumulate in land that has been dry for a long time, cracks appear on roads, public telephone booths, trees, fences, etc. suddenly tilt, it rains continuously, or the water level of a stream drops rapidly just after the rain stops, etc.

How to deal with mudslides?

Keywords: running in the right direction

1. Do not run down or up the ditch, but run up the hillsides on both sides and leave the ditch and river valley area.

2. Do not climb trees to avoid debris flow, because debris flow is different from ordinary floods, and its flow may cut off trees and sweep them into the debris flow.

3. Do not escape to open areas with sparse trees. Instead, choose to escape to areas with dense trees. Dense trees can block the advance of mudslides.

4. Do not stay on the concave side of a low bend, because the water level is higher there. Also, do not hide under a steep slope with rolling stones and large amounts of accumulation.

5. Do not escape to areas with thick soil. Escape to rocky areas with hard geology, no gravel, and not easily destroyed by rain.

Flood prevention is no small matter, keep safety in mind

Please take precautions