Sichuan Luding 6.8 Earthquake | How to deal with geological disasters caused by earthquakes?

| Secondary disaster |

Geological disaster after the Luding earthquake

Earthquakes can cause various damage and form earthquake disasters. The geological disaster caused by geological disasters will cause great losses to human society.

The geological disaster in the earthquake is directly wronged by the seismic fracture, causing the geomorphic shape and the destruction of the natural and artificial attachment on it; the second is the secondary disaster formed by the vibration effect, which mainly includes the cracking of the ground, the mountain rolling stones Collapse, landslides, foundation failed, and the collapse of the surface. The dam -collapsed dams caused by the landslide caused the flood, or due to the earthquake, the mountain material became loose and crispy, coupled with the water flow of rainfall or wrapped the landslide material to form mudslides.

The magnitude 6.8 earthquake in Luding is located in western Sichuan. The terrain and terrain are complex, the terrain height difference changes, and the shape of the high mountain canyon is prominent. The main secondary disaster threat of this earthquake comes from geological disasters.

The location of secondary geological disasters in the earthquake can be roughly divided into two categories. The first category is at the cliffs, the prominent mountain mouths, the towering and steep hills, steep slopes, steephills, mountains in front of the mountain, and mountains. In the depths of the ditch and the bank of the Greater River, these places are prone to landslides, collapsed rolling stones, land trap, dammed lakes, and mudslides during the earthquake. The second category is weak soil, liquefied land, the edge of the river bank and slope, structural cracking areas, and soil layers (including ancient river channels, loose faults, crushing bands, and buried Tangbin Gully Valley ), Flat lakes and shores, these places are prone to secondary disasters such as surface collapse, ground cracks, uneven settlement, sand liquefaction, misalignment and cracks during the earthquake.

If the geological disaster occurs in the wild in the mountains during the earthquake, it is necessary to quickly observe the surroundings and evacuate to a safer location. The following measures can be taken to protect yourself.

Lumps, landslides, and mudslides occur during earthquakes. If the mountain body is a rock, it may cause landslide and rolling rocks. When avoiding, you must run along the direction of rolling with the rock. You must not run down the mountain in the direction of the roller; Under the hurdle. In particular, we must protect the head. If the mountain body is sand, it is prone to landslides. At this time, you should try to avoid the steep or grooves of the mountain as much as possible, and to transfer to the terrain on both sides of the landslide.

At the edge of the water, if you encounter an earthquake, you should quickly transfer to a high -terrain safe place to prevent the earthquake from causing dams or dammed dams of the upstream reservoir to form floods. For example, near a large area of ​​water around the lake or reservoir, it should be transferred quickly and away from the water during the earthquake. Because the landslide and landslides after the earthquake or earthquake pour into the reservoir, it may cause a large surge of water to form a large surge to pose a threat to the people on the edge of the water.

When setting up temporary resettlement points after the disaster, pay special attention to avoid places that are prone to geological disasters, because the secondary geological disasters are lagging behind. At the same time, pay attention to discovering and monitoring hidden dangers of geological disasters, and strengthen inspections in key areas. After the earthquake, if it encounters rainy weather, it is particularly alert to the occurrence of mudslides.

Source: Zhenzhi Know the Mercy Studio

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