ABSTRACT

2002 Volcanic Activity in Alaska and Kamchatka: Summary of Events and Response of the Alaska Volcano Observatory   [open pdf - 5MB]

"The Alaska Volcano Observatory (AVO) tracks activity at the more than 40 historically active volcanoes of the Aleutian Arc (fig. 1). As of December 31, 2002, 24 of these volcanoes are monitored with short-period seismometer networks (fig. 2). AVO's monitoring program also includes daily analysis of satellite imagery supported by occasional over flights and compilation of pilot reports, observations of local residents, and observations of mariners. In 2002, AVO responded to eruptive activity or suspect volcanic activity at 6 volcanic.centers in Alaska --Wrangell, the Katmai Group, Veniaminof, Shishaldin, Emmons Lake (Hague), and Great Sitkin volcanoes […]. In addition to responding to eruptive activity at Alaskan volcanoes, AVO also disseminated information on behalf of the Kamchatkan Volcanic Eruption Response Team (KVERT) about activity at 5 Russian.volcanoes--Sheveluch, Klyuchevskoy, Bezymianny, Karymsky, and Chikurachki. This report summarizes volcanic activity in Alaska and Kamchatka in 2002 and describes AVO's response. Only those reports or inquiries that resulted in a 'significant' investment of staff time and energy (somewhat arbitrarily defined as several hours or more for reaction, tracking, and follow-up) are included. AVO typically receives dozens of reports of steaming, unusual cloud sightings, or false eruption reports throughout the year. Most of these are resolved quickly and are not tabulated here as part of the response record. On rare occasions, AVO issues an information release to dispel rumors of volcanic activity. The phrase 'suspect volcanic activity' (SVA), used to characterize several responses, is unusual activity that is subsequently determined to be normal or enhanced fumarolic activity, weather-related phenomena, or other non-volcanic event."

Report Number:
Open-File Report 2004-1058
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Public Domain
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pdf
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application/pdf
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