To the highest risk status declared Krakatoa

The Indonesian government has raised the status of one of the most dangerous volcanoes, Anak Krakatau in "standby" or IV (high) level of risk. Centre of Volcanology and Geological hazards (PVMBG) said that the status was upgraded on Friday, June 30, 2011 at 24:00 in the evening. The reason of high status is set because of the high intensity earthquakes. Today, October 2, 2011, from 00.00 to 12.00, is 2745 records of seismic events. Earthquakes under Mount Anak Krakatau, were felt throughout the island. "The tremors are continuous, although small magnitude 2 on the Richter scale." These mountains are always in danger of eruption.

The most famous eruption of Krakatoa in the historical period were held in 1680 and 1883 virtually destroyed the last eruption of the island on which the volcano.

Contact of water with ash column caused a huge pyroclastic flow height of 900 meters. Pyroclastic flow moved with great speed to the north, heading for Sumatra, where he died from about 2000.
Blowing (6 on a scale eruptions) by geologists at least 200 thousand times greater than the force of the explosion that destroyed Hiroshima.
From the island after the explosion, there were three small parts — Rakata island (island) SERGUN, Rakata-Kechil.
Raised explosion tsunami up to 30 m led to the death on the neighboring islands of about 36,000 people, was washed away in a sea of 295 towns and villages. Many of them approach the tsunami was probably destroyed by an air wave that brought down the equatorial forest on the coast of the Sunda Strait and tore roofs off houses and the doors off their hinges in Jakarta at a distance of 150 km from the crash site. The atmosphere of the Earth was outraged explosion in a few days. Air wave went around the Earth at different data from 7 to 11 times.

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