Friday, March 6, 2015

Volcano Week!

Indonesia's is a volcanic hotspot due to it's geographical location on the four subducting tectonic plates , which is part of the Pacific Ring of Fire. The main volcano type present here  is a stratavolcano. This type of volcano has steeper sides, and spews out low viscosity magma, toxic gages, and rhyolite rock into the air, and billows up into a large toxic cloud.

Source: Kenrick95
Above is an example of a stratavolcano in Indonesia, notice how steep the sides of the volcano are.
 
Some of the most catastrophic explosions took place on islands in Indonesia. In 1815, Mount Tambora erupted in violent events which was one of the most extreme eruptions in recorded history. As the ash was spewed into the air, the average world temperature dropped about 3 degrees.
 
 
 
There are 76 active volcanoes currently in Indonesia, although there is not enough technology to state exactly when a volcano erupts, there is always preparation. Each province has their own preparedness agency, although their readiness varies. In February alone, two volcanic eruptions left about 130,000 displaced, and many dead. The National Disaster Preparedness agency works with local community governments to plan out risk mapping, identifying threats, and training officials to be ready for these disasters also.
 
 
 
Sources
 
Extremescience.com
 
Volcanodiscovery.come/Indonesia
 
 


2 comments:

  1. It seems weird that they have so little preparation considering. Thailand isn't very prepared either, but their volcanoes are extinct. They just mainly get impacted by your quakes. By the way, did you know that that Tambora explosion caused (or helped to cause) a mini ice age that lasted for 3 years?

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  2. It seems as though you picked a good country, Carly. This is the second country in a row I've seen that is near 4 plate boundaries which i didn't even think was possible. My country, Italy, also has many stratovolcanoes but not even close to the number in Indonesia. Also, with this country being apart of the ring of fire, it is unfortunate that they don't have enough of a budget to develop a comprehensive alert system. All in all, good, informative entry!

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