Flash floods, mudslides, landslides
and other geological disasters
Timely warning and correct risk avoidance
It can effectively reduce casualties and property damage
Let's take a look at the success stories
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Hubei Daye "4•3" landslide successfully avoided the risk——
On the evening of April 3, heavy rain and strong wind broke out in Luojiaqiao Street, Daye City, Hubei Province. When Hu Xinbing, a disaster risk information reporter in Dalinshan Village, inspected the Hudongsheng Bay Binhu Community, he found that some trees on the slope of the community were crooked, the slope surface was cracked and settled, and there was a 7-storey residential building downhill, and two elderly people lived on the first floor.
Comrade Hu Xinbing quickly reported the hidden danger to the government and emergency department by telephone, and the Luojiaqiao Street Office and emergency department demanded that the masses be evacuated immediately. After communicating with the parties, the two elderly people were urgently transferred and placed to live in their children's homes, and a cordon was set up around them, and special personnel were arranged to conduct inspections. At about 1 a.m., a sudden rainstorm partially washed away the soil slope next to the house, and the earth and rock directly rushed into the courtyard of the old man's house. Afterwards, it was observed that the rainfall caused the soil slope to collapse an area of about 20 cubic meters, and the collapse point was less than 3 meters away from the nearest residential house, directly threatening the lives of the two people.
revelation
Because of timely information reporting and correct emergency treatment, casualties are avoided. The Department of Risk Monitoring and Comprehensive Disaster Reduction of the Ministry of Emergency Management evaluated this case as a typical case, and the village level discovered and identified potential risks at the first time, timely carried out information reporting and advanced disposal, and continued to report afterwards, playing the role of "first responder", and commended Daye Emergency Management Bureau, Luojiaqiao Subdistrict Office and Jinqiao Village.
Chongqing Zhongxian Zhongzhou Street Landslide Successfully Avoided -
On April 25, the disaster information officer of Chungju Street in Zhongxian County, Chongqing Municipality, while conducting a flood season hidden danger investigation, found that there was a danger on the unstable slope behind houses No. 352 to 354 in Group 3 of Xinqiao Community of Chungju Street. The informant reported in a timely manner and responded appropriately, and the hidden risks were handled in the bud, avoiding casualties and property losses.
At about 13:45 on April 25, when the Chungju Street Disaster Information Officer was conducting a flood season hidden danger investigation, he found that there was a danger on the unstable slope behind houses No. 352 to 354 in the third group of the singyo community, and immediately called the Chungju Street Office to report the danger. After receiving the danger report, the Chungju Subdistrict Office immediately reported the relevant situation step by step.
After receiving the report, the Municipal Emergency Management Bureau immediately conducted video dispatch with Zhongxian County to guide Zhongxian to initiate a level II. emergency response to geological disasters; In conjunction with the Municipal Bureau of Planning and Natural Resources, organize city-level geological experts, set up an on-site guidance working group, rush to Chungju Street in Zhongxian County to carry out emergency response, and guide the mass relocation, investigation and monitoring, danger elimination, etc.: First, urgently evacuate 37 threatened permanent residents and 133 people, use the method of relatives and friends for resettlement, and at the same time do a good job in the ideological guidance of the masses and the control of social public opinion; The second is to delimit the scope of the danger area, set up a warning line and warning signs, take measures to cut off the road and restrict the road, add safety barriers, prohibit unrelated personnel from entering the danger area, and implement special personnel to patrol and guard 24 hours a day; The third is to take measures to prevent the return of evacuees; The fourth is to formulate a plan for risk elimination, and clarify that the 607 geological team will carry out construction and risk elimination.
revelation
The Ministry of Emergency Management pointed out that the information on disaster risks was timely and effective, avoiding major casualties and property losses. Both technical defense and civil air defense are "two-handedly prepared" in order to better achieve successful risk avoidance and minimize losses.
Hubei Xingshan "3.21" Yangquan Village collapse disaster avoidance——
At 18:40 on March 21, 2022, a collapse occurred in the mountain behind the courtyard of the Pengjia Yard of Group 2 in Yangquan Village, Nanyang Town, Xingshan County, Yichang City, Hubei Province, with a collapse volume of about 4,700 cubic meters. Due to the early warning of meteorological risks of geological disasters, timely evacuation did not cause casualties.
At 5 p.m. on March 21, the villagers heard rocks rolling down behind the house, and quickly reported it to the "four-in-one" grid supervisor for geological disaster prevention. After the grid supervisor inspected, he immediately organized the evacuation of 11 people from 4 households and surrounding neighbors and reported. After receiving the report, the relevant personnel of the local government led geological experts to the site for scientific research and consultation, and after delimiting the danger range, the town and village organized the emergency transfer of 106 people from 49 households.
revelation
This successful hedging is due to the publicity training in place. Xingshan County regularly organizes villagers to participate in lectures and drills every year, so that the public's awareness of disaster prevention and risk avoidance has been continuously enhanced. In addition, provinces, cities and counties issued early warnings of meteorological risks of geological disasters in advance, and the early warning information directly reaches the "four-in-one" grid personnel and group survey and group prevention personnel of grassroots geological disaster prevention and control, strengthens the patrol and investigation of high-risk areas in the grid, makes timely responses before disasters come, and finally achieves successful risk avoidance.
Guizhou Shuicheng Xinpan Village Coal Cave Slope Group landslide avoidance——
At about 2 o'clock on May 26, 2022, the hidden danger point of the landslide in the Xinpan Village Coal Cave Slope Group in Duge Town, Shuicheng District, Liupanshui City, Guizhou Province slipped, with a total volume of about 90,000 cubic meters and a direct economic loss of about 2 million yuan. According to continuous monitoring information, the local area evacuated the threatened people in advance and successfully avoided the danger.
The landslide of the Coal Cave Slope Formation underwent its first deformation in August 2021. After that, the Duge town government permanently relocated 33 people from 8 households in some of the threatened areas, and closed the roads in the landslide area. From May 25 to 26, 2022, the maximum rainfall in Douge Town reached 104.2 mm, and at 1:10 a.m. on the 26th, the monitors found that the hidden danger point was deformed, cracks appeared in the ground, and the trailing edge continued to move back and expand, and the danger was immediately reported. After receiving the report, the Duge Town Government immediately organized the coal mine staff and 27 people from 5 households in the threatened area to evacuate for safety. At about 2 o'clock, a large-scale slide occurred at the hidden danger point, resulting in multiple collapses above the highway.
revelation
In geological hazard risk areas, relocation is the most effective measure to mitigate risks. After the evacuation of threatened personnel and before the hidden dangers are completely eliminated, maintaining vigilance and continuous observation of the dangerous area can prevent personnel from entering by mistake, eliminate accidental disasters, reduce the risk of fixed disaster-bearing bodies, and help avoid technical risks that the dangerous area delineation is not accurate enough, so as to achieve effective risk avoidance.
Chongqing Wulong Huangcao Village steep Leizi landslide avoidance——
At about 18 o'clock on May 28, 2022, a landslide disaster occurred in the Doolongzi Group (small place name: Qiqiaozi) in Huangcao Village, Jiangkou Town, Wulong District, Chongqing City, with a landslide body of about 500,000 cubic meters. The villagers found signs of deformation in a timely manner, and the threatened personnel were evacuated before the incident, without causing casualties.
At about 16 o'clock on May 19, when local villagers passed by Qileizi, they noticed signs of deformation on a slope and reported the situation. After receiving the report, the geological team stationed in the garrison and the government staff of Jiangkou Town rushed to the scene to investigate, preliminarily delineated the scope of the danger area, evacuated 3 households and 6 people from 3 households on the landslide, and asked the construction party (China Railway Seventh Bureau) under construction in the danger area to stop construction and block the construction site.
From the discovery of soil deformation on the 19th to the occurrence of landslides on the 28th, three stationed geological team members took turns to squat at the site every day and regularly carried out full-coverage inspections of the landslide.
At 15:00 on May 28, the monitoring results showed that the deformation of the landslide intensified. The stationed geological team members made a comprehensive study and judgment that a large-scale landslide was very likely to occur, and decisively recommended that the local party committee and government organize the immediate evacuation of more than 350 people who were threatened.
revelation
The construction of the project shall carry out the risk assessment of the land disaster. In recent years, the geological hazard risk assessment system has greatly reduced the risk of geological disasters caused by engineering activities, and achieved remarkable results. In this case, based on the information of geological hazards discovered by mass inspections, the local government organized on-site investigation and judgment of the stationed geological team, and proposed risk avoidance control measures for projects under construction, which effectively avoided casualties.
Jianghua County, Yongzhou City, Hunan Province "6·22" flash flood disaster early warning and avoidance——
From June 20 to 22, 2022, Jianghua County, Yongzhou City, Hunan Province continued to experience heavy to heavy rainfall, and locally extremely heavy rain. Due to the timely warning and the transfer in place, 26,670 people were evacuated and resettled in an emergency, successfully avoiding casualties in dangerous areas.
Before the rainfall, according to the 3-hour refined 5×5km intelligent grid precipitation forecast data released by the meteorological department, Hunan Province Flash Flood Disaster Early Warning issued a microapplication to predict the possibility of flash flood disasters in Jianghua County, reminding grassroots responsible persons to strengthen prevention.
From June 20 to 22, a total of 1,970 important warning messages were issued, 16,479 rainstorm warning signals and 10,956 township heavy rainfall warnings were issued. Promptly notify the transfer of personnel from dangerous areas in Weizhukou Township, Daxi Township, Maishi Township, Daxu Township, Zhuotianhe Township, Tuojiang Township, and Jiepai Township, and urgently evacuate and resettle 26,670 people.
revelation
First, flash flood disaster early warning improves the accuracy of early warning, and seamlessly connects to the 12379 national emergency early warning information release platform, sending flash flood disaster early warning information to mobile personnel in designated areas to achieve accurate early warning targets. The second is to release early warning information to the public in a timely manner, effectively reducing the number of casualties.
Longsheng Town, Longsheng Autonomous County, Guangxi, "6.22" Yulong Lane mudslide avoidance——
On June 22, 2022, Guilong Community, Longsheng Town, Longsheng Autonomous County, Guilin City, Guangxi Zhuang Autonomous Region, urgently evacuated people, successfully avoiding casualties caused by the mudslide disaster.
At 16:10 on the same day, Wu Taizhong, a grid member of Guilong Community in Longsheng Town, found signs of a mudslide on the back mountain of Yulong Lane during patrol inspection, and there were 12 houses below, and the situation was urgent. Wu Taizhong will immediately report to the town leader Benlong Army. After answering the phone, Ben Longjun rushed to the scene and found that a mudslide in the back mountain was rapidly rushing to a private house, about 400 meters away from the house, and he immediately transferred the two elderly people in the house to a safe area. Just 3 minutes later, the house was completely demolished by a mudslide.
Subsequently, according to the situation at the scene, the Emergency Response Bureau and relevant departments of Longsheng Autonomous County decisively adopted methods such as knocking on doors and calling and entering homes to safely evacuate a total of 32 people from 4 surrounding houses, of which 7 elderly people with reduced mobility were carried out by rescuers.
revelation
Guangxi has implemented the persons responsible for flash flood disasters at the grassroots level, and established a rapid warning mechanism for flash flood disaster risks that "the autonomous region warns to counties, cities to townships, and counties to villages". In accordance with the chain of technology, materials, teams and organizations, timely revise and improve the county, township and village flash flood disaster prevention plans, do a good job of emergency materials and team reserves, and continue to carry out the process of each link of the drill plan.
Jiangxi Province Ganzhou Changtan Village Longtou Group landslide avoidance——
At 13:30 on May 25, 2022, a landslide occurred on the slope behind the villagers' houses in Longtou Group of Longtou Village, Shibatang Township, Nankang District, Ganzhou City, Jiangxi Province, with a landslide body of about 450 cubic meters, causing damage to the houses at the foot of the slope. Because the threatened 2 families and 10 people have been moved ahead of schedule, no casualties have been caused.
On May 23, the provincial, municipal and county natural resources departments successively issued early warning information on meteorological risks of geological disasters, which was transmitted to all townships, village groups and group survey and group defense personnel, and arranged village cadres to go to each village group to assist in group measurement and group prevention work.
At 10:30 on May 25, the village's group survey group guards inspected the slope behind the houses of the villagers in the Mapletree Group, found that there was a local drop of rock and soil, and immediately reported it to the township government. The threatened 2 families and 10 people were immediately transferred to evacuate. At 13 o'clock, the collapse disaster occurred.
revelation
This case shows that the early warning of meteorological risks of geological disasters plays the role of "signal gun". In practice, affected by the accuracy of early warning, the timeliness of rainfall and the frequency of verification, the early warning signals at different levels of the country, provinces, cities and counties show top-down progressive consistency, forming a technical service system of reminders, warnings and alarms, providing sufficient time for the first response.
Source: China Emergency Management