Sichuan Earthquake, China, April 2013
Criteria for Ranking
217 deaths, 14, 11,500 injured, 237, 655 displaced, 2.1 million affected Date
April 20, 2013, 8:02 a.m.
Lushan County of Ya’an city in South China’s Sichuan Province Type
Earthquake (Magnitude 7.0)
The earthquake resulted in an estimated 217 deaths, 11,500 injured, 655 people displaced, and 193,000 houses collapsed and 510,000 were severely damaged. Sources of Information
http://reliefweb.int/disaster/eq-2013-000046-chn and http://reliefweb.int/sites/reliefweb.int/files/resources/Sitrep%20No%203%20Lushan%20_Yaan_%20Earthquake%2018%2000_21%20April%202013.pdf Mitigation
The 6.6 magnitude earthquake toppled buildings, triggered landslides and disrupted phone and power connections when it struck just after 8 a.m. local time Saturday in the mountainous Lushan county. The area is located just 53 miles from the 2008 disaster and is also on the seismically active Longmenshan fault line. The epicenter had a depth of a little less than eight miles. The quake comes just short of five years after a massive 7.9 magnitude quake in the same region killed some 70,000 people. The April 20 earthquake reflects tectonic stresses resulting from the convergence of crustal material slowly moving from the high Tibetan Plateau, to the west, against strong crust underlying the Sichuan Basin and southeastern China. Many local houses are made of wood and earthen walls, almost all of which collapsed in the earthquake. Over 99% of houses in the epicenter, Longmen Township of Lushan County collapsed. Infrastructure wise, local roads were badly damaged and blocked by landslides and dozens of bridges damaged to varying degrees. Major roads to affected areas are being restored gradually. Several townships suffered major damage and many old buildings in Lushan collapsed. The electricity service was interrupted, and the electricity grids in the surrounding counties. The newer structures, built with greater earthquake resistance after the 2008 disaster are largely standing, at least in the county town, although many are cracked. Buildings more vulnerable to collapse appear to be those older tile and timber homes which withstood the 2008 quake. Local authorities have also said that several dams and reservoirs in the area have developed cracks and are being checked to evaluate the risk. The damage from the earthquake that struck Lushan county in southwest China's Sichuan province on Saturday will not have a significant impact on the national economy compared to the devastating 2008 earthquake in the same province, according to Chinese economists and analysts.
Guangdong storm China
Criteria for Ranking
9 people killed, 270 injured
Severe Hail and Thunderstorm
Winds of up to 109 miles per hour, dumped more than 1.9 inches of rain and unleashed hail the size of eggs Sources of Information
http://phys.org/news/2013-03-south-china-storms-die.html and http://upi.com/Top_News/World-News/2013/03/21/Storm-kills-nine-in-China/UPI-37741363845069/ Mitigation
Most of the deaths were caused by residential buildings collapsing.Across the storm region a total of 2,000 structures collapsed and 248,000 were damaged. Other provinces affected by storms and torrential rain were nearby Jiangxi, Hunan in central China and Guizhou in the southwest. About 215,000 people were evacuated from their homes and the economic loss is estimated at $210 million. While convective thunderstorms are by no means unheard of in central and southern China, they are far more commonplace during the rainy season. This takes places between the months of May and September when air pressure is low and surface heating is at its highest, giving rise to intense convection and subsequent heavy rain. For...
...Ranking: 20 death
- Date: September 23, 2012
- Location: Northeastern states of Sikkim and Assam, India
- Type: Floods and landslides
- Description: 20 people died, 1.3 million of people were affected by flood, over 200,000 of people lost their houses.
- Sources of information: http://india.blogs.nytimes.com/2012/09/24/floods-and-landslides-kill-dozens-in-north-east-india/
- Rank: 9th
- Criteria for Ranking: 17 death
- Date: November 4, 2012
- Location: Andhra Pradesh, India
- Type: Flood
- Description: The flood resulted in 17 deaths and destroyed more than 1246 houses. Crops were destroyed over 243,634 hectares. Roads were also heavily damaged.
- Sources of information: http://disaster-report.com/2012/11/recent-natural-disasters-list-november-4.html
- Rank: 10th
- Criteria for Ranking: 8 death
- Date: February 29, 2012
- Location: Harrisburg, Illinois, the United States
- Type: Tornado (EF-4)
- Description: The tornado resulted in 8 deaths, about 110 injured; more than 200 houses and 25 businesses were strongly destroyed.
- Sources of information: http://en.wikipedia.org/wiki/Harrisburg,_Illinois#Tornado_of_2012...
...What are NaturalDisasters?
The World is always changing.
Naturaldisasters are changes which are so great they may cause damage to the shape of the land or to the lives of people and other living things.Great changes happen deep inside the Earth and on its surface. The changes on the outer part of the Earth happen because of different kinds of weather.
What are NaturalDisasters?
• Volcanic eruption
• Cyclone or Hurricane
• Forest fire or Bushfire
A volcanic eruption is the spurting out of gases and hot lava from an opening in the Earth’s crust.
Pressure from deep inside the Earth forces ash, gas and molten rock to the surface.
An earthquake is a violent shaking of the ground. Sometimes it is so strong that the ground splits apart.
When parts of the earth, called plates, move against each other giant shock waves move upwards towards the surface causing the earthquake.
Effects of Earthquakes
Earthquakes produce various damaging effects to the areas they act upon. This includes damage to buildings and in worst cases the loss of human life. The effects of the rumbling produced by earthquakes usually leads to the destruction of structures such as buildings, bridges, and dams. They can also trigger landslides.Besides producing floods and destroying...
A naturaldisaster is a major adverse event, which can cause loss of life or property damage, and typically leaves some economic damage. There are many types of naturaldisasters: avalanches, earthquakes, volcanic eruptions, floods, tsunamis, blizzards, droughts, hailstorms, tornadoes, wildfires. If an adverse event occurs in an area without vulnerable population, it will not have such disastrous consequences, as if it occurs in area of vulnerable population as in San Francisco.
One of the biggest naturaldisasters, which appear mostly in mountainous area, is avalanche. An avalanche occurs when a mass of snow falls down from the mountainside. That is because new snow, which is not wet, falls on a more heavy snow layer. This causes that the layer of snow is too big and it start to slide down toward the base of mountain. One of the biggest avalanches in world history was in Italian - Austrian Alps. During World War II, Italy and Austria had military bases in the Alps – soon finding that bombs and enemy fire weren't the only threats. Heavy snow instigated a series of avalanches in the Tyrol region causing the deaths of 10,000 soldiers on what became known as White Friday 1916.
Of course one of the naturaldisasters is an earthquake (also known as a quake, tremor or temblor). Earthquake is the result of a sudden...
A naturaldisaster is a major adverse event resulting from natural processes of the Earth; examples include floods, severe weather,volcanic eruptions, earthquakes, and other geologic processes. A naturaldisaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover.
An adverse event will not rise to the level of a disaster if it occurs in an area without vulnerable population. In a vulnerable area, however, such as San Francisco, an earthquake can have disastrous consequences and leave lasting damage, requiring years to repair
A flood is an overflow of an expanse of water that submerges land. The EU Floods directive defines a flood as a temporary covering by water of land not normally covered by water. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Flooding may result from the volume of water within a body of water, such as a river or lake, which overflows or breaks levees, with the result that some of the water escapes its usual boundaries. While the size of a lake or other body of water will vary with seasonal changes in precipitation and snow melt, it is...
...A naturaldisaster is the effect of a natural hazard (e.g., flood, tornado, hurricane, volcanic eruption, earthquake, heatwave, or landslide). It leads to financial, environmental or human losses. The resulting loss depends on the vulnerability of the affected population to resist the hazard, also called their resilience. if these disasters continues it would be a great danger for the earth. This understanding is concentrated in the formulation: "disasters occur when hazards meet vulnerability." Thus a natural hazard will not result in a naturaldisaster in areas without vulnerability, e.g. strong earthquakes in uninhabited areas. The term natural has consequently been disputed because the events simply are not hazards or disasters without human involvement. A concrete example of the division between a natural hazard and a naturaldisaster is that the 1906 San Francisco earthquake was a disaster, whereas earthquakes are a hazard. This article gives an introduction to notable naturaldisasters, refer to the list of naturaldisasters for a comprehensive listing.
An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves. At the Earth's surface, earthquakes manifest...
Assignment on ⊸ “NaturalDisasters, & its causes & effects”⊸
Diploma in Networking
By: Alam Abbas
Tutors’ name: Fathimath Mohamed
Define NaturalDisastersNaturaldisasters causes & its effects
NaturalDisasters is meant bynatural event such as a flood, earthquake, or hurricane that causes great damage or loss of life.
Naturaldisasters happen all over the world and they can be utterly devastating for people’s lives and the environments in which they live. Although naturaldisasters are caused by nature and there is nothing that we can do to prevent them happening, there are many different natural causes that lead to naturaldisasters, and being aware of these causes enables us to be better prepared when such disasters do arrive.
Different Types of NaturalDisasters
One common naturaldisaster is flooding, which occurs when a river bursts its banks and the water spills out onto the floodplain. This is far more likely to happen when there is a great deal of heavy rain, so during very wet periods, flood warnings are often put in place....
A naturaldisaster is a major adverse event resulting from natural processes of the Earth; examples include floods, volcanic eruptions, earthquakes, tsunamis, and other geologic processes. A naturaldisaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover.
An adverse event will not rise to the level of a disaster if it occurs in an area without vulnerable population. In a vulnerable area, however, such as San Francisco, an earthquake can have disastrous consequences and leave lasting damage, requiring years to repair.
In 2012, there were 905 natural catastrophes worldwide, 93% of which were weather-related disasters. Overall costs were US$170 billion and insured losses $70 billion. 2012 was a moderate year. 45% were meteorological (storms), 36% were hydrological (floods),12% were climatologically (heat waves, cold waves, droughts, wildfires) and 7 % were geophysical events (earthquakes and volcanic eruptions). Between 1980 and 2011 geophysical events accounted for 14% of all natural catastrophes.
Effects of NaturalDisaster
Millions of people are affected by naturaldisasters every year, and the impact can be calamitous. From the...
...NaturalDisastersNaturaldisasters affect many people in the world. Over 31,849,838 number of people have died from naturaldisasters since 1900. A naturaldisaster is the effect of a natural hazard including tornadoes, tsunamis, and earthquakes and more. Those naturaldisasters can lead to financial, environmental, and human losses. The ten deadliest naturaldisasters of the past century in order are the China Floods in 1931, the Tangshan Earthquake in 1976, the Bhola Cyclone in 1970, the Haiyuan earthquake in 1920, the Indian Ocean Tsunami in 2004, the Haiti Earthquake in 2010, the Great Kanto Earthquake in 1923, the Cyclone Nargis in 2008, the Bangladesh cyclone in 1991 and the Ashgabat Earthquake in 1948.
A tornado (often referred to as a twister or, erroneously, a cyclone) is a type of naturaldisaster that is very messy and nasty. It is a violent, dangerous, 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. Tornadoes come in many shapes and sizes, but are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debris and dust. Most tornadoes have wind speeds less than 110 miles...