Impact of Volcanic Eruptions on Environment part2

Negative impact

Given the negative impact of the volcanic eruption, will be highly detrimental to all living beings who survive on earth. No wonder so many people are highly anticipating to avoid the eruption of the volcano as it will give a negative impact on the surrounding environment and living things around it.

Here is an explanation of the negative impact of the volcano: what causes earthquakes

1. Negative Impact of the Human Volcano Eruption

Hot volcanic ash would damage everything in its path
Air pollution by the volcano ash. Abu volcano has several hazardous substances such as hydrogen sulfide (H2S), sulfur dioxide (SO2), nitrogen dioxide and dust material that may contain toxins
Paralyze all activities surrounding communities, including economic quit
Various material emitted by volcanoes can trigger the emergence of seedling diseases, such as respiratory tract infections, cough, sore skin, etc.
Primarily for the volcano which is used as a tourist. Given this disaster, tourism discontinued, revenue from travel also helped stop. Several volcanoes in Indonesia as a tourist destination for example, Mount Merapi and Rinjani
Accidents due to slippery road dusty, contaminated food poison
Rain dust blocking the view and pollute the surrounding air which becomes the cause of global warming
Hot lava resulted in forest fires, so that forest ecosystems are threatened. Including animals that live in it.
2. Negative Impact Volcano Eruption for the Environment

Immediate danger when the mountain erupted like a cloud of hot, glowing material eruption, rocks, volcanic ash, lava and soil erosion .
Indirect dangers such as air pollution by toxic substances, contaminated water, degraded land
Danger Brought By Activities Volcanos

1. The flow of hot lava –  flow of volcanic lava has a temperature of 7000 to 1200 o C. With extremely high heat, lava flows can be damaging and burning anything in its path. But citizens and residents in the surrounding mountains can still save themselves from this lava flow because the flow is so slow that is about 5-300 meters / day.

2. Lahar –  There are several types of lava, among others lava raining commonly also called secondary lahar and lava eruptions, also known as primary lava. The specific gravity of a large lava flow of between 2-2.5. Can destroy anything. Especially if the area sloping / slanting. Building and building around can be destroyed in an instant. Definition of lava eruptions and lava rain is as follows.

3. lava eruption – a lava that occurs due to explosive eruption volcano has a crater lake. Far whether the spread lava eruption is influenced by several factors: the extent of the water in the crater, large plains around the mountain, as well as the circumstances surrounding the crater morphologists.

4. Lahar rain – a lava formation caused by the rain . Lahar rain can form long after the volcano erupted or immediately after the occurrence of volcanic eruptions. Large or small lava rain affected by rainfall intensity, the extent of the sediment volcanic ash that has (ash is a material that can form lava). Lahar rain in Indonesia is already very popular is mountain rain lava Galunggung, Merapi, Semeru Agung.

5. Hot clouds – clouds with temperatures of about 2000-800 ° C can invade the area around the volcano to a radius of 10 km even further. Free hot cloud of approximately 60 to 145 km / h. This hot cloud in addition to damage buildings and residential, can also make trees were uprooted and the roots of trees ripped from the ground. Two types of clouds hot heat clouds that can attack with a radius surge further, thereby reaching a wider area. Furthermore, hot clouds block and ash flow direction will come with a mountain valley.

6. The rain of ash –  Rain erupis ash from volcanoes usually contain dust, sand, clay granules and can impact on the high acidity of the water, the destruction of trees and different kinds of plants, including agricultural land, cause eye diseases and respiratory infections. In case of ash are encouraged to wear masks and goggles fibers do not forget to clean the rest of the ash settles on the roof of the house.

5. incandescent rocks –  Lontaraan incandescent stones can occur when volcanoes erupt and lead to anywhere. Can burn and damage buildings, forests, human and animal deaths. To avoid hurl incandescent rocks, should evacuate all the way to a safe area (away from the mountain).

6. incandescent lava –  lava comes from lava flows or lava dome. Longsornya can get millions of cubic meters so it is very dangerous for the surrounding environment.

Hazard Mitigation Volcano Eruption

Continue to monitor volcanic activity active
Information when already apparent sign of the mountain will erupt can be conveyed to the public around quickly thanks to intensive monitoring
Danger due to lava flow, can be prevented by making the dikes and reduce the amount of water crater
Disaster-prone areas should be left as it endangers the safety of the population
Mapping of disaster-prone areas

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