Cleveland volcano (Alaska) activity update: steaming, possible weak ash emissions, thermal anomaly
Wednesday Jun 13, 2012 12:05 PM | BY: T
AVO reported that during 5-6 June elevated surface temperatures at Cleveland's summit were detected in satellite imagery.
A low-level plume that rose to an altitude of 3.5 km (11,500 ft) a.s.l. was observed by a web camera on 6 June. A strong sulfur odor was reported by observers in Nikolski (75 km E). Clouds prevented views of the volcano on 7 June. Minor deposits of ash near the summit crater were observed in satellite images during 9-10 June and elevated surface temperatures were detected during 11-12 June.
Thursday, Jun 07, 2012
Friday, Jun 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! [more]
Thursday, May 31, 2012
The first pilot group trip to Lesvos led the guests to geological highlights of the island of Lesbos. Also, if Lesbos is not known as a volcanic area, so there are clear traces of volcanic activity in the northwest of the island. The most famous example is the Petrified Forest of Sigri. There volcanic eruptions about 20 million years ago have preserved forests by covering with silicon-rich ash permanently. One of the best preserved fossil forests in the world. The remnants of volcanoes that have preserved this forest can be seen in some places very well. The hot springs of Eftalou Polihnitos and are a sign that it is below the island of Lesbos still active magma chambers. In Polihnitos we visited nearly 90 degrees C hot springs, and could even see how it dead animal be permanently preserved by minerals over time. If successful, the unexpected discovery Eftalou very beautiful quartz crystals. ... [more]
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