Disasters
see also The
weather, Climate: hurricanes, cyclones and
storms |
About Avalanches
Snow is deposited in successive layers as the winter progresses. These
layers may have dissimilar physical properties and an avalanche occurs when
one layer slides on another (Surface Avalanche), or the whole snow cover
slides on the ground (Full-Depth). An avalanche may be Dry or Wet, according
to whether free water is present in the snow. It may be of Loose Snow, when
the avalanche starts at a single point or a Slab Avalanche which occurs when
an area of more cohesive snow separates from the surrounding snow and slides
out. In practice, any snow slide big enough to carry a person down is
important. Avalanche configurations are illustrated in the SAIS "Avalanche
Recording Form" |
Almanac of disasters fires, earthquakes, transportation |
Anatomy of
an avalanche animation |
Avalanche awareness |
Avalanches
many people get killed every year because of
avalanches |
Avalanches
tutorial, Avalanche Encyclopedia, Avalanche Danger Scale |
Avalanches
an avalanche is a mass of loosened snow or ice that suddenly and swiftly slides down a
mountain, often growing as it descends and collects additional material such as mud, rocks, trees and debris. Snow avalanches can occur whenever snow is
deposited on slopes steeper than approximately 20 to 30 degrees |
Disaster
image catalog pictures and images |
Earthforces
earth science, plate tectonics, volcano, earthquake, tsunami, floods |
Earth watching
Cyclones, Earthquakes, Fires, Floods, Oil Slicks, Volcanoes, photos from
space |
Forest
fires there are two ways a forest fire can be created: natural and by humans |
Freak waves
freak waves are waves that can raise 60 meters in height from a calm sea to destroy ships are in existance, researchers told. Many tought it was mysterious but tides seem to change. Growing evidence
including satellite images, shed light in to these stories |
Freak waves,
part of
Power of waves animated |
Freak waves
freak waves, rogue waves, extreme waves and ocean wave |
Freak waves -
Rogue waves |
Landslides the term landslide refers to the downslope movement of masses of rock and soil. Landslides are
caused by one or a combination of the following factors: change in slope gradient, increasing the load the land must bear, shocks and vibrations,
change in water content, ground water movement, frost action, weathering of rocks, and removal or changing the type of vegetation covering slopes |
Natural
hazards photographs of damage caused by natural hazards |
Savage
earth if our planet is a sleeping giant, it slumbers fitfully, slowly and insidiously, earthquakes, volcanoes, tsunamis, and other natural disasters. Highlights include animated illustrations |
Savage
earth animations page hot zones, volcanic eruption, collision zone animation, mid-ocean ridge animation, subduction animation |
Wave simulator and
freak waves |
Horizontaal |
Floods |
Catastrophic
flood dynamic database reports of catastrophic floods, and of the various kinds of evidence by which they are recognized, are listed in this
database |
Earth observatory: real time flood map |
Floods a
flood appears, when more water is coming in than the ground and plants can take up. Water can come in through rains, rivers, broken dams and smelting
snow. Most people die because of the coastal floods |
Floods
a flood is the inundation of normally dry land resulting from the rising and overflowing of a body of water. It is a
natural geologic process that shapes the landscape, provides habitat and creates rich agricultural lands. Human activities and settlements tend to use
floodplains, frequently interfering with the natural processes and suffering inconvenience or catastrophe as a result |
Floods
a flood typically occurs when a river (or other body of water) overflows its
banks |
Flood warnings |
Floods alert |
Iceland flood
on 30 Sept. 1996 a subglacial volcano erupted under the Vatnajokull ice cap. Subsequently on 5 Nov. at 08:00 meltwater reached the edge of the glacier
fracturing it in several places. At 08:30 the water was 3-4 m high and 500-600 m across issued from the glaicer |
Lynmouth flood of 1952 |
Sedimentary evidence favouring the formation of rogen landscapes by outburst floods |
Horizontaal |
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Last updated on:
2011-01-02
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