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Novarupta is a volcano, located on the Alaska Peninsula, about 290 miles southwest of Anchorage. Its eruption of June 6- June 8, 1912 was ten times more powerful than the 1980 eruption of Mount St. Helens. See: 1912 Novarupta eruption. Only one eruption in historic times, GreeceGreece formally called the Hellenic Republic (in Greek: ) Hellenike Demokratia , is a country in the southeast of Europe on the southern tip of the Balkan peninsula. It is bounded on land by Bulgaria, the Former Yugoslav Republic of Macedonia and Albania's SantoriniSantorini is a small, circular group of volcanic islands located in the Aegean Sea, 75 km south-east of the Greek mainland, (latitude: 35. 25N longitude: 25. It is also known by the name of the largest island in the archipelago, Thira or Thera (Θ&et in about 1500 B.C., displaced more volcanic matter than Novarupta. The 1883Events January January 16 The Pendleton Civil Service Reform Act, establishing the United States Civil service, is passed January 19 The first electric lighting system employing overhead wires begins service ( Roselle, New Jersey) It was built by Thomas E eruption of IndonesiaThe Republic of Indonesia the world's largest archipelago, is located between the Southeast Asian peninsula and Australia, between the Indian and Pacific Oceans. Indonesia borders Malaysia on the island of Borneo ( Kalimantan in Bahasa Indonesia), Papua N's KrakatoaKrakatoa ( Indonesian name: Krakatau is a volcano on the Indonesian island of Rakata in the Sunda Strait. It has erupted repeatedly, massively and with disastrous consequences throughout recorded history, but the most well known of these events occurred o displaced half as much as Novarupta. Novarupta's 1912 eruption has been rated a 6 on the Volcanic Explosivity IndexThe Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U. Geological Survey and Steve Self at the University of Hawaii in 1982 to provide a relative measure of the explosiveness of volcanic eruptions. Volume of products, eruption cloud h.

Novarupta sits below Mount KatmaiMount Katmai is a large stratovolcano about 10 km in diameter with a central lake-filled caldera about 4. 5 by 3 km in area. The caldera rim has a maximum elevation of 2247 m and in 1975 the lake surface was at an elevation of about 1286 m. The estimated, which collapsed as a result of material being expelled from the volcano. The lava dome that formed to plug the vent from which the eruption occurred is what is now referred to as Novarupta. PyroclasticPyroclastic is a term used in volcanology to describe air fall material ejected during a volcanic eruption. This material, known as pyroclast may include pumice, volcanic bombs, ignimbrite and ash. See also Pyroclastic flow Pyroclastic rock Pyroclastic su ash flow from the eruption formed what was named the Valley of Ten Thousand Smokes by Robert Griggs , who explored the volcano's aftermath for the National Geographic Society in 1916.