Krakatau is a volcanic island that is still active and located in the Sunda Strait between Java and Sumatra. This name was never pinned on a volcanic peak in there that, because of the eruption on 26-27 August 1883, then vanished. The explosion is very powerful and the resulting tsunami killed about 36,000 people.Until the date of December 26, 2004, this is a terdahsyat tsunami in the Indian Ocean region. Explosion sound was heard up in Alice Springs, Australia and the island of Rodrigues near Africa, 4653 miles. Yield is estimated at 30,000 times the atomic bomb that was detonated on Hiroshima and Nagasaki at the end of World War II.
The eruption of Krakatau caused global climate change. The world was dark for two and a half days due to volcanic ash that covered the atmosphere. The sun shines dim until next year.Scattering dust visible in the sky Norway to New York.
Ancient Volcano Krakatau
Looking at the region of Mount Krakatau in the Sunda Strait, experts estimate that in ancient times there is a huge mountain in the Sunda Strait which eventually erupted leaving a massive caldera (large crater) called Ancient Krakatau, which is the parent of Mount Krakatau erupted in 1883. The mountain is composed of andesitic rocks.
Ancient Krakatau erupted with very great, which caused a great explosion, three-quarters were destroyed leaving the body Ancient Krakatau caldera (large crater) in the Sunda Strait. The sides or edges of the crater known as Rakata Island, Long Island and Island Sertung, in another record called Pulau Rakata, Rakata Island and Small Island Sertung.
Ancient Krakatau explosion is expected to last for 10 days at an estimated speed of regurgitated mass reaches 1 million tons per second. The blast shield has formed a thick atmosphere of 20-150 meters, lowering the temperature of 5-10 degrees for 10-20 years.
The emergence of Mount KrakatauRakata island, which is one of the three remaining islands of Krakatoa then grow according to the Ancient volcanic impulse from deep within the earth, known as Mount Krakatau (or Mount Rakata) made of basaltic rock. Then, the two emerged from the volcano crater, named Danan Mountain and Mount Perbuwatan which then merges with Mount Rakata came first. The third union volcano is called Mount Krakatau.
Krakatau erupted and there was also the day Monday, August 27, 1883, promptly at 10:20. Noted that the explosion was the biggest, loudest and most devastating volcanic event in modern human history. Eruptions voice heard until 4600 km from the center of the eruption and can even be heard by a 1/8 of the population of the earth at that time.
Krakatau explosion had thrown stones, pumice and volcanic ash with a volume of 18 cubic kilometers. Vulkaniknya bursts of dust at 80 km. Hard objects that flew into the air it falls on the plains of Java and Sumatra, even to Sri Lanka, India, Pakistan, Australia and New Zealand.
The eruption destroyed Danan Mountain, Mount Gunung Rakata Perbuwatan and some where a half cone is missing, create a basin-wide and 7 km deep as 250 meters. Waves reached as high as 40 meters destroying villages and whatever is on the coast. The tsunami was caused not only because of the eruption, but also the underwater landslide.
Recorded the death toll reached 36 417 people from 295 coastal villages from Merak (Serang) to cilamaya in Karachi, the Cape west coast of Banten to display on the island of Panaitan (Ujung Kulon and southern Sumatra. In Ujungkulon, incoming flood of up to 15 km to the west. next day until a few days later, residents of Jakarta and Lampung outback no longer see the sun. Tsunami waves generated even climbing up to the coast of Hawaii, Central America and the west coast of the Arabian Peninsula seven thousand kilometers away.
Anak KrakatauBegan in 1927 or about 40 years after the eruption of Mount Krakatoa, a volcano that emerged known as Anak Krakatau caldera of the ancient region that is still active and still growing in height. The cause of the high mountain was caused by the material that comes out of the new mountain belly. Anak Krakatau current altitude reaches about 230 meters above sea level, while the height of Mount Krakatau previous 813 meters above sea level.
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