NATURAL DISASTERS
GLACIERS - are masses of snow and ice, crystalized ice and rock debris that accumulate in great quantities and begin to flow outwards and downwards under the pressure of their own weight. Glaciers form when yearly snowfall in a region far exceeds the amount of snow and ice that melts in a given summer. In this way, massive quantities of material accumulate in relatively small periods of geologic time.
MUDSLIDES- A Landslide, also known as a landslip, is a geological phenomenon that includes a wide range of ground movements, such as rockfalls, deep failure of slopes and shallow debris flows. Landslides can occur in offshore, coastal and onshore environments. Although the action of gravity is the primary driving force for a landslide to occur, there are other contributing factors affecting the original slope stability. Typically, pre-conditional factors build up specific sub-surface conditions that make the area/slope prone to failure, whereas the actual landslide often requires a trigger before being released.
TORNADOS- Is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud, various types of tornadoes include the land-spout, multiple vortex tornado, and waterspout. Tornadoes have been observed on every continent except Antarctica. However, the vast majority of tornadoes occur in the Tornado Alley region of the United States.
HURRICANES- Is a tropical storm with heavy winds. By definition, they contain winds in excess of 74 miles per hour and large areas of rainfall. In addition, they have the potential to spawn dangerous tornadoes. The strong winds and excessive rainfall also produce abnormal rises in the sea levels and flooding
EARTHQUAKE- Is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. The location below the earth's surface where the earthquake starts is called hypocenter, and the location directly above it on the earth is called the epicenter.
VOLCANOES- Are mountains. But unlike most mountains in the world, formed from folding continental plates, uplift and erosion, volcanoes are created when material from inside the earth escapes to the surface.
MUDSLIDES- A Landslide, also known as a landslip, is a geological phenomenon that includes a wide range of ground movements, such as rockfalls, deep failure of slopes and shallow debris flows. Landslides can occur in offshore, coastal and onshore environments. Although the action of gravity is the primary driving force for a landslide to occur, there are other contributing factors affecting the original slope stability. Typically, pre-conditional factors build up specific sub-surface conditions that make the area/slope prone to failure, whereas the actual landslide often requires a trigger before being released.
TORNADOS- Is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud, various types of tornadoes include the land-spout, multiple vortex tornado, and waterspout. Tornadoes have been observed on every continent except Antarctica. However, the vast majority of tornadoes occur in the Tornado Alley region of the United States.
HURRICANES- Is a tropical storm with heavy winds. By definition, they contain winds in excess of 74 miles per hour and large areas of rainfall. In addition, they have the potential to spawn dangerous tornadoes. The strong winds and excessive rainfall also produce abnormal rises in the sea levels and flooding
EARTHQUAKE- Is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. The location below the earth's surface where the earthquake starts is called hypocenter, and the location directly above it on the earth is called the epicenter.
VOLCANOES- Are mountains. But unlike most mountains in the world, formed from folding continental plates, uplift and erosion, volcanoes are created when material from inside the earth escapes to the surface.