The Pacific Ring of Fire is a volcanic belt that surrounds the Pacific Ocean. Around 80% of the world's largest earthquakes occur in this region due to tectonic plate subduction, where one plate sinks beneath another. Japan, located on the Ring of Fire, experiences frequent earthquakes and volcanic eruptions from over 130 active volcanoes, such as Mount Fuji, which last erupted around 250 years ago.
2. What is Pacific Ring of Fire?
● Pacific Ring of Fire is a volcanic belt which surrounds
whole of Pacific.
● Pacific Ring of Fire is area which earthquakes and
volcanic eruption frequently occur.
● About 80% of the world's largest earthquakes occur along
the Ring of Fire.
●
Volcanic islands such as Japanese archipelago, Indonesia,
Philippines and Aleutian Islands and moutain range such
as Andes Mountains and Rocky Mountains are along Pacific
Ring of Fire.
3. Volcanic belt
●
Volcanic belt is a large volcanically active region.
●
There is hot magma under ground in volcanic belt.
● It is almost similar to volcanic chain. Volcanic chain
is Thing which have divided volcanic belt further.
4. Subduction Zone
● Form of volcano belt is caused by plate running against
another plate.
● 1. When plate runs against another plate, one side sinks
in mantle.
● 2. The mantle rises and magma rises to the ground.
●
3. As a result, volcano belt is formed.
5. Alpide belt
● Alpide belt is a mountain range which extends along
Eurasian Continent.
● Alpide beltis the second most seismic region in the world.
●
Volcanic activity doesn't occur so much in are along
Alpide belt unlike circum-Pacific orogeny.(Circum-Pacific
orogeny is another name for Pacific Fire of Ring.)
6. Japan
● Japan is on Pacific Ring of Fire.
●
Disadvantage due to the thing
・ Earthquakes frequently occur.
・ Volcanic activity is active and volcano often erupted.
●
Advantage due to the thing
・ There are a lot of spots of great scenic beauty and
hot spring sources.
・ There are a lot of spots where geothermal power
generation could conduct.
7. Volcano in Japan
● There are about 130 active volcano.
●
It is not unnatural that they erupt at any time.
● For example, Mount Kirishima is active now and it erupted
in this year.
● Mount Fuji is the most famous volcano in Japan and
the tallest volcano in Japan.
● Mount Fuji erupted about 250 years ago.
●
If Mount Fuji erupts, Japan should suffer devastating
damage.
8. Summary
● Pacific Ring of Fire is a volcanic belt which surrounds
whole of Pacific.
● Pacific Ring of Fire is formed by plate running against
another plate and one side sinking in mantle.
● Japan is on Pacific Ring of Fire, so earthquakes
frequently occur.
● There are a lot of volcano in Japan.
●
They may erupt.
