(Actions before, during and after landslide)
Heavy rain sometimes saturates rock and sediment masses and showers them toward the plains, lower parts and highways especially coastal zone. High amounts of water wear down the highlands and cliffs. Consequently it has a significant role in displacement of masses destroying the houses above the precipice. Loose boulders which are thrown to the downstream and highways also endanger the lives of many people. Flooding rivers erode cliff along the water, havens, bumps and embankments and eventually cause their collapse and thrust. Such events are landslides or mudslides. In other words, mass movement of earth ingredients down a slope is called landslide.
Actions before the landslide
- Don’t make buildings near steep slopes, edge of mountain, water and flood routes or near an eroding valley.
- Do soil science studies before construction.
- Ask earth science experts and geotechnical specialists for advice to be aware of the possibility of landslide in your area.
Apply these measures to minimize the house risk.
- To prevent gas leaks, use flexible, proper and resistant pipes. (Only gas companies and professionals should install a gas line).
- Plant trees on the slopes near your house.
- In areas where there is the possibility of mudflow, make channels or protective walls to direct the flow away from the building.
- Keep in mind if you build protective walls to direct the flow of rock fall away, it shouldn’t damage your neighbor’s house.
Actions during the landslide
- If you don’t have the opportunity to seek refuge in a safe place, stay inside and hide on the side or under the table or furniture.
- The best action is to go out of the flow of dirt and landslides.
- If you live in an area prone to landslides and in the path of falling debris and rocks, leave the house to be safe. If you stay at home, go upstairs if possible.
- Contact your local fire department, police and government agencies.
- Authorities and officials are the best people who can help you during risks.
- Inform neighbors who are also at risk and help people who want to leave the house.
- Be careful when you are driving. Earth walls alongside the road are susceptible to landslides.
- If you live near a river or canal of water, watch out for any water change or its turning into mud. Such changes may be a sign of slip of upper part of river. So you should be ready to leave quickly. Save your life promptly without taking anything.
Actions after the landslide
- Listen to news for the latest emergency information.
- Go to the injured and trapped people near the landslide to help them. Guide rescuers to them.
- Help your neighbors needing your help, specially the elderly, children and disabled people.
- Check infrastructure systems such as water, electricity, etc. Control the damage to roads and rail ways. Inform immediately the responsible centers if you see any damage or injury. If authorities are informed about potential dangers they can disconnect main electricity and water lines to prevent a lot of injuries and risks.
- Control all parts of building such as foundations, walls, chimney and the area around the building. So you can make an accurate assessment of safety of your place.
- Plant bushes and trees again in damaged areas otherwise soil weathering may cause soil loss of the soil surface or it may make the area prone to flooding.
- Consult a geophysical engineer in order to assess the risk of landslide in your area and design appropriate methods to reduce it. An expert in the field can guide you to adopt the best way to prevent or reduce the risk of landslide without causing the later hazards.
- Avoid living in an area having the risk of landslide because there is also the risk of the next landslides.