Lốc xoáy gây thiệt hại nặng tại Đà Nẵng | VTV24

Key Concepts

• Lốc xoáy (Tornado): A violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
• Sạt lở núi (Landslide): The movement of a mass of rock, debris, or earth down a slope.
• Ngập lụt (Flood): An overflow of water that submerges land that is usually dry.
• Thiên tai (Natural Disaster): A natural event such as a flood, earthquake, or hurricane that causes great damage or loss of life.

Summary of Natural Disasters in Vietnam

This report details recent severe natural disasters impacting various regions of Vietnam, including tornadoes, landslides, and widespread flooding, highlighting significant damage to property, infrastructure, and human casualties.

Tornadoes in Da Nang and Quang Nam

Main Topics and Key Points:

• A severe tornado struck Da Nang overnight, causing extensive damage to dozens of houses in the southern part of the city. Roofs were blown off, and properties were heavily damaged.
• In Quang Nam province, a tornado hit residential areas in Huong Tra ward (formerly Tam Ky city) and Chien Dan commune (formerly Phu Ninh district) around 10:30 PM.
• At least four people were injured and required emergency medical treatment due to falling debris, primarily roof tiles.
• One house, described as sturdily built, had its three-section tiled roof completely blown away, resulting in estimated damages of hundreds of millions of Vietnamese Dong.
• Initial statistics indicate nearly 100 houses in affected areas suffered roof damage, with at least 20 completely losing their roofs or sustaining over 70% structural damage.
• The tornado also caused damage to agricultural land, recreational areas, electricity poles, and lighting systems.
• The villages of Khanh Tho, Truong My, and Khanh Thinh were identified as the most severely affected areas.

Step-by-Step Process/Methodology:

• The tornado's impact was assessed through initial statistical counts of damaged houses and affected infrastructure.
• Injured individuals were promptly transported for emergency medical care.
• Local authorities are likely involved in damage assessment and providing immediate relief.

Key Arguments/Perspectives:

• The severity of the tornado's impact is emphasized by the description of a "sturdily built" house being completely devastated, illustrating the destructive power of the event.
• The direct impact on residential areas and the resulting injuries underscore the immediate danger posed to the population.

Landslides and Flooding in Dak Lak

Main Topics and Key Points:

• Prolonged heavy rainfall in Dak Lak province, particularly on the day of and the day prior to the report, led to rising river and stream levels, causing deep inundation in many residential areas.
• Transportation was locally cut off, and landslides occurred, burying houses.
• Around 8:00 AM on the reporting day, a landslide on the Truong Son Dong road in Giang Mao commune, Dak Lak, buried a residential house completely.
• Hundreds of cubic meters of soil and rocks cascaded down, engulfing the house. Fortunately, two children inside managed to escape.
• Residents reported cracks appearing in the ground followed by water infiltration, leading to the landslide. Some long-term residents stated they had never witnessed such a situation in 20 years.
• From November 16th to the morning of November 17th, rainfall in some Dak Lak communes reached significant levels, ranging from 200 to 340 mm, causing severe flooding in Giang Mao and Cu Pu communes.
• One resident described water reaching the roof of their lower-level house by midnight, highlighting the rapid and severe nature of the flooding.
• Community leaders and neighbors assisted in evacuating residents and their belongings.
• Livestock suffered significant losses, with some animals swept away and others perishing.
• Local authorities are actively assisting in the evacuation of residents from flood and landslide-prone areas to safer locations.
• Efforts are ongoing to reach and assist isolated households in remote hilly and agricultural areas.
• Authorities are advising residents not to return to their homes in areas at risk of landslides and flooding.
• Households whose homes were destroyed will receive support from the local government to build temporary shelters.
• While specific property damage figures are not yet available, many coffee gardens ready for harvest are expected to experience a 50% reduction in yield or complete crop loss due to waterlogging.

Step-by-Step Processes/Methodologies:

• Rainfall Monitoring: Rainfall data was collected, with specific figures (200-340 mm) indicating the intensity of the precipitation.
• Impact Assessment: The extent of flooding and landslides was assessed by observing water levels, the volume of displaced earth, and the number of affected houses.
• Evacuation and Rescue: Residents were evacuated from high-risk zones, and rescue efforts were undertaken for isolated individuals.
• Damage Mitigation: Temporary shelters are being provided for those who lost their homes.
• Advisory and Warning: Public advisories are being issued to prevent people from returning to dangerous areas.

Key Arguments/Perspectives:

• The report emphasizes the unprecedented nature of the rainfall and its consequences, with residents expressing shock at the severity of the events.
• The vulnerability of agricultural livelihoods, particularly coffee cultivation, is highlighted, with significant economic implications expected.
• The proactive role of local authorities in evacuation and providing support is noted.

Cumulative Impact of Flooding in Central Vietnam and Broader Natural Disaster Trends

Main Topics and Key Points:

• Central Vietnam has experienced its fourth major flood within a single month, with successive floods causing extensive damage to both human lives and property.
• The period from late September to early November has seen an unprecedented series of natural disasters in Northern and Central Vietnam.
• Late September to Early October: Northern and North-Central Vietnam endured 13 consecutive days of heavy rain and flooding, resulting in 66 deaths and disappearances, over 160 injuries, and the inundation of hundreds of thousands of homes and over 100,000 hectares of rice and other crops.
• Late October: Flooding intensified in Central Vietnam, from Ha Tinh to Quang Ngai. Within 48 hours, Bach Ma peak recorded 2,465 mm of rain, nearing a world record. Nearly half of the rainfall measurement stations exceeded their previous records.
• The Cau Lau station's rainfall surpassed the "Great Flood of the Year of the Dragon" in 1964.
• Hue and Da Nang were submerged, with some areas experiencing up to 3 meters of flooding, leading to the complete isolation of many residential areas.
• Early November: Floodwaters rose rapidly again, breaking previous records set just a week prior.
• At the Phu Oc station on the Bo River near Hue, flood levels broke records three times in a short period.
• Currently, many rivers from Quang Tri to Lam Dong are experiencing rapid rises and widespread flooding.
• Beyond Flooding: A severe landslide in Khanh Hoa resulted in seven deaths, 19 injuries, and one person missing.

Data, Research Findings, or Statistics:

• Rainfall Data:
  • 200-340 mm in Dak Lak (Nov 16-17)
  • 2,465 mm at Bach Ma peak (48 hours in late Oct)
  • Cau Lau station rainfall exceeded 1964 levels.
  • Phu Oc station on Bo River near Hue broke records three times in a short period.
• Casualties and Damage:
  • 4 injured in Da Nang tornado.
  • 7 deaths, 19 injured, 1 missing in Khanh Hoa landslide.
  • 66 deaths/missing, >160 injured in late Sep/early Oct floods (North/North-Central).
  • Hundreds of thousands of houses inundated.

  • 100,000 hectares of crops inundated (late Sep/early Oct).

  • Estimated hundreds of millions of VND damage from Da Nang tornado.
  • 50% or total yield loss expected for coffee in Dak Lak.

Logical Connections:

• The report moves from specific localized events (tornadoes, landslides) to a broader regional context of recurring and intensifying natural disasters (flooding in Central Vietnam).
• It highlights a pattern of extreme weather events occurring in close succession, overwhelming coping mechanisms and infrastructure.
• The cumulative impact of these disasters is presented as a significant challenge for the affected regions.

Key Arguments/Perspectives:

• The frequency and intensity of these natural disasters are presented as unprecedented, with historical records being broken.
• The interconnectedness of different types of natural disasters (rain leading to floods and landslides) is implied.
• The report underscores the severe human and economic toll of these events.

Conclusion/Synthesis

The presented information details a series of devastating natural disasters across Vietnam, including tornadoes in Da Nang and Quang Nam, severe landslides and flooding in Dak Lak, and a relentless cycle of major floods in Central Vietnam. These events have resulted in significant loss of life, injuries, widespread property destruction, and substantial economic damage, particularly to agricultural sectors. The data indicates an alarming trend of increasing frequency and intensity of extreme weather events, with rainfall records being broken and historical flood levels surpassed. The cumulative impact of these disasters, occurring in rapid succession, poses a severe challenge to the affected communities and necessitates ongoing relief efforts and long-term disaster preparedness strategies.