disaster pics

8/8/2019 Disaster Pics

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AVALANCHES EARTHQUAKES

HURRICANES LIGHTNING


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A Satellite image of Gleebruk, Indonesia after

TSUNAMI VOLCANOS

FLOODS TORNADOES

WILDFIRES CHINA EARTHQUAKE

VOLCANOS


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BOILINING BROWN MUD AERIAL VIEW


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HURRICANE IVAN

------------------------------------------------------------------------------------------------------------------------------------------FLOOD PHOTOS


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Summer thunderstorms, like this one roiling over Alarcon Terrace, can turn the Grand Canyon's normally

dry streambeds into seething torrents up to 50 feet (15 meters) deep. Such flash floods can quickly

materialize miles away from where rainfall occurred, taking canyon hikers by surprise


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y Venice, Italy, is a city in perpetual flood. But sinking buildings, due to the extraction ofgroundwater, and rising sea levels have put this 1,300-year-old urban marvel in peril.

High-water eventswhich used to afflict Venice fewer than ten times a yearnowaverage nearly ten times a month. An ambitious system of floodgates to save the city is

expected to be completed in 2012.

When the annual monsoon rains come and send the Hooghly River over its banks, rickshas are the best

way to get around Kolkata (Calcutta), India. Here, a drenched ricksha puller pauses for a photo in ankle-

deep water near a market


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TSUNAMI PHOTOS


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HURRICANES PHOTOS


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While avalanches are sudden, the warning signs are almost always numerous before they let loose. Yet in 90 percent of avalanche

incidents, the snow slides are triggered by the victim or someone in the victim's party. Avalanches kill more than 150 peopleworldwide each year. Most are snowmobilers, skiers, and snowboarders.

Many avalanches are small slides of dry powdery snow that move as a formless mass. These "sluffs" account for a tiny fraction ofthe death and destruction wrought by their bigger, more organized cousins. Disastrous avalanches occur when massive slabs ofsnow break loose from a mountainside and shatter like broken glass as they race downhill. These moving masses can reachspeeds of 80 miles (130 kilometers) per hour within about five seconds. Victims caught in these events seldom escape.

Avalanches are most common during and in the 24 hours right after a storm that dumps 12 inches (30 centimeters) or more offresh snow. The quick pileup overloads the underlying snowpack, which causes a weak layer beneath the slab to fracture. Thelayers are an archive of winter weather: Big dumps, drought, rain, a hard freeze, and more snow. How the layers bond oftendetermines how easily one will weaken and cause a slide.

Storminess, temperature, wind, slope steepness and orientation (the direction it faces), terrain, vegetation, and general snowpack

conditions are all factors that influence whether and how a slope avalanches. Different combinations of these factors create low,moderate, considerable, and high avalanche hazards.

If caught in an avalanche, try to get off the slab. Not easy, in most instances. Skiers and snowboarders can head straight downhillto gather speed then veer left or right out of the slide path. Snowmobilers can punch the throttle to power out of harm's way. Noescape? Reach for a tree. No tree? Swim hard. The human body is three times denser than avalanche debris and will sink quickly.As the slide slows, clear air space to breathe. Then punch a hand skyward.

Once the avalanche stops, it settles like concrete. Bodily movement is nearly impossible. Waitand hopefor a rescue.Statistics show that 93 percent of avalanche victims survive if dug out within 15 minutes. Then the survival rates drop fast. After45 minutes, only 20 to 30 percent of victims are alive. After two hours, very few people survive.

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