Do you ever heard Ring Of Fire?
Have you ever heard Natural Phenomenon called Ring Of Fire?
Ring Of Fire is one of spectacular natural phenomenon that happend in nature. What makes me interesting about this natural phenomenon is because this phenomena happend in my country, indonesia. The bad news is many people in my country aren't familiar with this phenomena.
So in this blog i'd like to give you all information that i know about this phenomena.
The
Ring of Fire is a major area in the basin of the Pacific Ocean where many
earthquakes and volcanic eruptions occur. In a large 40,000 km (25,000 mi)
horseshoe shape, it is associated with a nearly continuous series of oceanic
trenches, volcanic arcs, and volcanic belts and plate movements. It has 452
volcanoes (more than 75% of the world's active and dormant volcanoes).[1] The
Ring of Fire is sometimes called the circum-Pacific belt.
The presence of a belt of volcanic
activity surrounding the Pacific Ocean was observed in the 19th century.
"They [the Japanese Islands] are in the line of that immense circle of
volcanic development which surrounds the shores of the Pacific from Tierra del
Fuego around to the Moluccas." (Matthew Perry, Narrative of the Expedition
of an American Squadron to the China Seas and Japan, 1852-54, Introduction,
Section I, "Name, Extent, and Geography
About 90% of the world's earthquakes
and 81% of the world's largest earthquakes occur along the Ring of Fire. The
next most seismically active region (5–6% of earthquakes and 17% of the world's
largest earthquakes) is Alpide
belt, which extends from Java to the northern Atlantic Ocean via the Himalayas
and southern Europe.
All but three of the world's 25 largest
volcanic eruptions of the last 11,700 years occurred at volcanoes in the Ring
of Fire.
The
Ring of Fire is a direct result of plate tectonics: the movement and collisions
of lithospheric plates. The eastern section of the ring is the result of the
Nazca Plate and the Cocos Plate being subducted beneath the westward-moving South
American Plate. The Cocos Plate is being subducted beneath the Caribbean Plate, in
Central America. A portion of the Pacific Plate and the small Juan de Fuca
Plate are being subducted beneath the North American Plate.
Along the northern portion, the northwestward-moving Pacific plate is being subducted beneath the Aleutian Islands arc.
Farther west, the Pacific plate is being subducted along the Kamchatka Peninsula arcs
on south past Japan. The southern portion is more complex, with a number of
smaller tectonic plates in collision with the Pacific plate from the Mariana
Islands, the Philippines, Bougainville, Tonga, and New Zealand; this portion
excludes Australia, since it lies in the center of its tectonic plate.
Indonesia lies between the Ring of Fire along the northeastern islands adjacent
to and including New Guinea and the Alpide belt along the south and west from
Sumatra, Java, Bali, Flores, and Timor.
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