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Summary of world-wide volcanic activity 6-12 June 2012mardi juin 19, 2012 14:16 | AUTEUR : T
The new Smithsonian / USGS Weekly Volcanic Activity Report is summarized as follows: -- new activity --- Fuego (Guatemala): strong strombolian activity, lava flows, lahars, occasional pyroclastic flows Galeras (Colombia): ash emissions, increased seismicity Nevado del Ruiz (Colombia): ash and steam venting Poas (Costa Rica): sporadic phreatic explosions in May --- ongoing activity --- Bagana (Bougainville Island, Papua New Guinea): occasional ash eruptions reaching 2-3 km altitude Batu Tara (Sunda Islands, Indonesia): occasional ash eruptions reaching 2-3 km altitude Cleveland (Aleutians): steaming, possible weak ash emissions, thermal anomaly Karmysky (Kamchatka): thermal anomaly visible on satellite data, occasional weak explosions Kilauea (Hawaii): lava lakes in Pu'u 'O'o and Halema'uma'u crater, lava flows 1.6 km from coast Popocatépetl (Mexico): ash and steam venting, occasional explosions, crater glow Rabaul (Papua New Guinea): steaming, occasional volcanic earthquakes Sakurajima (Japan): strong vulcanian-type explosions, ash plumes up to 3-4 km altitude, occasional small pyroclastic flows Sangay (Ecuador): ash eruptions on 6 and 10 June Santiaguito (Guatemala): weak to moderate explosions, blocky lava flows from dome and occasional lahars Shiveluch (Kamchatka): growing lava dome, occasional strong explosions ejecting ash to 8-9 km altitude Tungurahua (Ecuador): occasional strong explosions with ash columns up to 3 km, lahars Actualités précédentes
lundi, juin 18, 2012
New discoveries of petrified trees at the area of Agia Paraskevi show that there has been a dense forest 17 Million years ago on the western part of the island of Lesbos. New excavations under the palaeontologist Prof. Nikos Sourou show about 45 species of trees. Some even in the original position with their roots. In future it is planned to include the new items in the geopark of Lesbos island. The fossils are covered by many meters of pyroclastic material of huge volcanic eruptions that took place in the time around 15-23 Million years. Some of the volcanoes that caused this wonder of nature can be found even today after millions of years of erosion (caldera of Agra, Lepetimnos volcano and other lava domes). ...
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Picture of the Day - VolcanoDiscovery: Aerial view of the eastern part of Santorini with the caldera
samedi, juin 09, 2012
The new Smithsonian / USGS Weekly Volcanic Activity Report is summarized as follows: ...
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vendredi, juin 01, 2012
Lesbos is probably one of the most beautiful and photogenic Greek islands, and full of natural and cultural treasures, but little known. We therefore now offer a new walking tour on Lesbos. Read what Katharina from Switzerland writes about the tour!
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The new Smithsonian / USGS Weekly Volcanic Activity Report is summarized as follows: ...
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