Okmok volcano (Aleutian Islands, Alaska): mild to moderate ash eruptions
jeudi juil. 24, 2008 14:27 |
On 19 July, activity at Okmok increased as interpreted from seismicity. Possibly, ash plumes rose to altitudes of 7.6-9.1 km (25,000-30,000 ft) a.s.l. The Volcano Alert Level was raised to Warning and the Aviation Color Code was raised to Red.
On 20 July, seismicity decreased. Satellite imagery revealed that an ash plume about 20 km from Okmok drifted SE at an altitude of 3.7 km (12,000 ft) a.s.l. Additional ash plumes observed on satellite imagery and spotted by pilots rose to altitudes of 4.6-6.1 km (15,000-20,000 ft) a.s.l.
During 21-22 July, ash plumes rose to altitudes of 6.1-9.1 km (20,000-30,000 ft) a.s.l. and drifted SE.
(adapted from SI/USGS Weekly Volcanic Activity Report 16-22 July 2008)
mardi, juin 24, 2008
On June 21 the new volcanological museum of Nisyros was opened at the village Nikia. The rich exhibition shows all volcanological phenomena and many rock samples. Many photographs of active volcanoes are provided by VolcanoDiscovery (by Dr. Tom Pfeiffer). At the celebration the most important politicians of the region took part at the opening ceremony. The new museum was planned and designed by a team around the Greek geologist Dr. Giorgis Voujoukalakis and Dr. Michalis Fytikas. ... [details]
lundi, mai 19, 2008
Etna - keeping us busy with eruptions at the moment - is worth an own tour in iteself. We have now developed a new exciting program to get to know this wonderful mountain in a series of moderate to challenging hikes, including a full traverse of the mountain. A first group departure is set for 2-8 November. ... [details]
samedi, avril 26, 2008
This year the VolcanoDiscovery Team celebrates the Greek orthodox Easter on the volcanic peninsula of Methana. ... [details]
mardi, mars 25, 2008
Our website has undergone an update of its design. You can find the content at the same place as before, but we hope that you will find navigation easier. We thank every one for the valuable feedback and input, helping us to improve! ... [details]
mercredi, févr. 06, 2008
Tobias Schorr will do a presentation about the 4 Greek volcanoes (Methana, Milos, Santorini & Nisyros) at the Lette-Verein at Viktoria-Luise-Platz 6 in Berlin/Schoeneberg at 6 March 19:00. Free entrance! ... [details]
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