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Usually because they are close to volcanic activity.
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Why in some areas mudflows have followed rivers and in other areas mudflows have spread out?
no
Some volcanoes have glaciers on top which may melt causing what type of hazard?
The glaciers may melt and mix with volcanic ash, forming mudflows called lahars.
Are lahars hot?
They can be if they are triggered by an eruption melting snow and ice. However, some lahars occur from rainfall on old ash deposits that have had time to cool. These lahars are not hot.
What was the cause of deaths in nevado del ruiz in 1985?
Around 2,500 deaths were caused by the most serious eruption of the Nevado del Ruiz volcano in 1985. The town of Armero was covered in a mass of mud and debris (or lahar) which the volcano produced.
What are some less hazards from volcanic eruption?
The only effective method of risk mitigation is evacuation prior to such eruption from areas likely to be affected by pyroclastic flows. 5 - Lahars ( volcanic mud and debris flows) are a common major volcanic hazard for people and property. Laharslikewise proceed very quicky and possess great destructive power.
What can ash do?
Volcanic ash can have a variety of effects. In some eruptions it can fall like snow, but with different effects. The silica in the ash can be toxic to plants and animals. The weight of the ash can bring down trees and collapse roofs. Large areas can be buried. Over the long term, however, volcanic ash, once weathered, makes very fertile soil. Volcanic ash is also harmful when inhaled and can damage the eyes and lungs. It can clog the engines of cars and aircraft, and can bring down planes in flight. In some eruptions, superheated clouds of ash and gas called pyroclastic flows race down the slopes of a volcano. Anything living caught in such a flow will burn to death. When ash mixes with rain or melted snow and ice it can form mudflows called lahars. These lahars behave like floods, but are denser and more destructive, burying the areas where they come to rest in hardened mud. Lahars can fill in stream beds as well, causing floods.
What were the areas of Japan affected by the earthquake?
Everywhere had at least some tremor.
How does volcanic ash help Java?
Volcanic ash can have a variety of effects. In some eruptions it can fall like snow, but with different effects. The silica in the ash can be toxic to plants and animals. The weight of the ash can bring down trees and collapse roofs. Large areas can be buried. Over the long term, however, volcanic ash, once weathered, makes very fertile soil. Volcanic ash is also harmful when inhaled and can damage the eyes and lungs. It can clog the engines of cars and aircraft, and can bring down planes in flight. In some eruptions, superheated clouds of ash and gas called pyroclastic flows race down the slopes of a volcano. Anything living caught in such a flow will burn to death. When ash mixes with rain or melted snow and ice it can form mudflows called lahars. These lahars behave like floods, but are denser and more destructive, burying the areas where they come to rest in hardened mud. Lahars can fill in stream beds as well, causing floods.
What are some common features seen in disaster affected areas?
distruction distruction distruction
What are some of the hazards when volcano erupts?
mudflows were one of them
What other areas in the world were affected by the us and the soviet union rivalry during cold war?
Some other areas that were affected by the Cold War are North and South Korea, Vietnam, Latin America and Afghanistan.
Where was hurricane Gustav?
Hurricane Gustav affected several areas. Some of the areas were Michigan, Lesser Antilles, Leeward Antilles, Puerto Rico, and Cuba.
