Natural events Along Impacts part2

Material released when the volcano erupted, among others: how do earthquakes happen
volcanic gas
Volcanic gases contain harmful gases such as: Carbon monoxide (CO), carbon dioxide (CO2), Hydrogen Sulfide (H2S), sulfur dioxide (S02), and Nitrogen (NO2).
Lava and sand flow as well as hot stone
Aqueous lava flows along rivers will freeze while the viscous lava near the crater. Lava solidifies to form an assortment of rocks.
Lava
Lava lava that has been mixed with rocks, water, and other materials. Lahar is very dangerous for the people on the slopes of the volcano. If you have a cold and it’s raining on the mountain slopes, the cold lava on the slopes will hanyutdan cause cold lava flood.
Ash rain
Volcanic ash is very fine material is ejected into the air during an eruption. Because it is very smooth, the ash can be carried by the wind and was felt hundreds of kilometers away. The ash eruptions can disrupt breathing.
Hot clouds
Results eruptions flowing coiled like a cloud. Within these rolls are incandescent rocks were hot and dense volcanic material with a temperature greater than 600 ° C. Hot clouds can cause severe burns to exposed body such as the head, arms, neck or legs and also can cause shortness of breath. In Yogyakarta and surrounding areas, hot clouds often dsebut “wedhus trash”.
Krakatoa erupted in 1883.  The eruption of Mount Krakatau also resulted in  a tsunami. Volcanic eruptions may result in  adverse impacts. Lava spewed by the volcano  can burn the forest  path. Various species of plants and  animals died in the fire. If the lava is  flowing to the settlements,  can take human lives and  cause significant damage.
3. Flood
Flooding is the flood water that exceeds the limit. The flood disaster begins with the rainfall  is very high. Rainfall is said to be high if it  rained continuously and magnitude  of more than 50 mm per day. Rainwater can  lead to flooding if it does not get enough  space to drain. Often the river is not  able to collect rain water so that the water overflowed  into a flood. Throughout the month of January 2008 occurred  flooding in various regions. Floods hit cities  such as Jakarta, Semarang, Solo, Aceh and  Lampung. In addition to the effect of high rainfall, flooding can occur due to human activities, such as deforestation and littering habits. Trees will hold rainwater so most can be absorbed into the soil. Deforestation causes most of the rain water flowing on the ground, especially in urban areas where most of the land surface covered building. Rain water can not be absorbed into the soil and cause flooding. This condition will only get worse jka people like littering, because the garbage will clog the drains.

Floods may result in losses  were enormous. Some of the impacts of floods are:

1. Damage to buildings, including a bridge,
a system of underground sewers, and roads.
2. Reduced supplies of clean water.
3. Sources of clean water contaminated flood water,
sehigga can not be used again
4. The emergence of disease outbreaks
5. Due to unhygienic conditions, after the
floods usually occur outbreaks of diarrheal diseases,
    skin diseases, etc.
6. The agricultural production and food supplies
diminished
7. The scarcity of agricultural output caused by crop failures. Plants can be washed away or
    rot due to the constantly submerged in water.
8. damaged transport lines, tough emergency relief to people
     need.

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