22 Gunung Api di Indonesia yang Mulai Aktif Lagi (Status Waspada !)

4 Responses to “22 Gunung Api di Indonesia yang Mulai Aktif Lagi (Status Waspada !)”

1. 

   Reply Pos IKLAN says:

   November 1, 2010 at 23:54

   The best known eruption of Krakatoa culminated in a series of massive explosions on August 26–27, 1883, which was among the most violent volcanic events in modern and recorded history.

   With a Volcanic Explosivity Index (VEI) of 6, the eruption was equivalent to 200 megatons of TNT (840 PJ) — about 13,000 times the nuclear yield of the Little Boy bomb (13 to 16 kt) that devastated Hiroshima, Japan, during World War II and four times the yield of the Tsar Bomba (50 Mt), the largest nuclear device ever detonated.

   The 1883 eruption ejected approximately 21 km3 (5.0 cu mi) of rock, ash, and pumice.

   The cataclysmic explosion was distinctly heard as far away as Perth in Western Australia, about 1,930 miles (3,110 km) away, and the island of Rodrigues near Mauritius, about 3,000 miles (5,000 km) away.

   Near Krakatau, according to official records, 165 villages and towns were destroyed and 132 seriously damaged, at least 36,417 (official toll) people died, and many thousands were injured by the eruption, mostly from the tsunamis that followed the explosion. The eruption destroyed two-thirds of the island of Krakatoa.

   Eruptions at the volcano since 1927 have built a new island in the same location, named Anak Krakatau (Indonesian: “Child of Krakatoa”). This island currently has a radius of roughly 2 kilometres (1.2 mi) and a high point around 300 metres (980 ft) above sea level, growing 5 metres (16 ft) each year.

   

2. 

   Reply Coal Marketplace says:

   November 9, 2010 at 00:26

   Troubling Global Volcanic Activity on the Rise

   November 4, 2010
   Troubling Global Volcanic Activity on the Rise

   “The news is all about the Tuesday’s U.S. elections, but some of us are concerned about the news on Monday regarding a possible eruption of the Grimsvotn volcano in Iceland. Never heard of it? You will. Grimsvotn (pictured) is the most active volcano in Iceland. The one that made a lot of news earlier in 2010 was Eyjafjallajokull that, while relatively small, generated such a huge cloud of ash that it disrupted air travel across western and northern Europe for six days in April. Here’s why volcano watchers around the world are on high alert. This past week, in Indonesia, after a tsunami killed several hundred people, Mount Merapi rumbled to life forcing thousands to flee back to evacuation centers as 38 lava avalanches occurred with pyroclastic flows down the south and west slopes running outward for seven kilometers. They incinerate everything in their path. In August, a volcano on Sumatra erupted for the first time in 400 years.

   There is a “Ring of Fire” that stretches approximately 25,000 miles in a horseshoe from eastern Asia to the western shores of North and South America. It has 452 volcanoes of which 75% are the world’s most active or dormant. On August 25, Italy’s Etna volcano and Columbia’s Galeros volcano both erupted. In the U.S. the last major volcanic eruption was Mount St. Helens in 1980, but it is just one volcano in Washington State that includes Mount Baker, Glacier Peak, Mount Adams, and Mount Rainier, all part of a Cascade Range that reaches down into California. Mount Rainer is a massive stratovolcano located just 54 miles southeast of Seattle. In June 1991, Mount Pinatubo erupted in the Philippines sending millions of tons of ash and dust into the Earth’s atmosphere. It caused the global temperature to drop at least a degree or two for a few years. Why talk about volcanoes in the aftermath of a historic election? Because there has been a significant increase in volcanic activity of late. That is never a good thing. In his book, “Not by Fire but by Ice” the foremost authority on ice ages and magnetic reversals, Robert W. Felix, quoted Peter Vogt of the U.S. Naval Oceanographic Office who warned that, “Almost all tectonic movement can be linked to magnetic reversals. Seafloor spreading, sea level changes, mountain growth, earthquakes, and volcanism all seem to speed up whenever the frequency of reversals speeds up.”

   Magnetic reversals are part of the cycles scientists have determined existed over the 4.5 billion years of the Earth’s existence. They range from the most ancient, the Devonian, to the Holocene, from 10,000 years ago to the present. “At least twelve (magnetic) reversals can be linked to extinctions and climatic deterioration during the last three million years alone,” says Felix. Significantly, the aftermath of magnetic reversals are linked to the emergence of new species in ways that Charles Darwin never knew or dreamed of. What we call “evolution” is far more likely the result of magnetic reversals.

   “Mass extinctions have been the rule, rather than the exception, for the 3.5 billion years that life has existed on this planet,” says Felix. One of those species is Homo sapiens, human beings, and we have existed for a mere 200,000 years. Civilization as we know it is about 5,000 years old; a blink of the eye in terms of the age of the Earth. Thus, all this volcanic activity occurring around the world may be signaling the advent of a new magnetic reversal and, as bad as volcanoes are, a magnetic reversal is the very definition of a cataclysm on such an order that it defies the imagination. Think of the sudden end of dinosaurs. I tell you this because of all the blather of biodiversity, predicted species extinctions, and similar nonsense that is now following in the wake of the corpse formerly known as “global warming.” It is the new deception. The real action is that of the Earth and the Sun. Though a predictable solar cycle, the Sun has gone “quiet” of late with few sunspots, the popular name for gigantic magnetic storms seen on the surface of the Sun. They almost always precede cooling cycles of shorter or longer duration and the worst of these are ice ages. We are at the end of the latest interglacial period of 11,500 years and the next ice age will come on with blinding speed. When you tie volcanic activity, earthquakes, tsunamis, and other natural events together, it behooves the human race to be far more humble about our so-called affect on the Earth’s environment. Our home is a small planet in a very large universe.” -Family Security Matters

   © Alan Caruba, 2010

3. 

   Reply Cen Sin says:

   November 9, 2010 at 02:24

   Thousands of new volcanoes revealed beneath the waves

   The true extent to which the ocean bed is dotted with volcanoes has been revealed by researchers who have counted 201,055 underwater cones. This is over 10 times more than have been found before.

   The team estimates that in total there could be about 3 million submarine volcanoes, 39,000 of which rise more than 1000 metres over the sea bed. “The distribution of underwater volcanoes tells us something about what is happening in the centre of the Earth,” says John Hillier of the University of Cambridge in the UK. That is because they give information about the flows of hot rock in the mantle beneath. “But the problem is that we cannot see through the water to count them,” he says. http://www.newscientist.com/article/dn12218

4. 

   Reply Mount Kirishima says:

   January 28, 2011 at 08:26

   Hey – interesting write-up. Volcanoes are awesome… now the volcano on Mount Kirishima is erupting! You’ll find some fantastic pictures inside the DailyMail newspaper. It’s in Shinmoedake at Japan’s most southern island, Kyushu – Check it out! Anyhow, cool site…