1993 Volcanic Activity in Alaska: Summary of Events and Response of the Alaska Volcano Observatory [open pdf - 1MB]
"During 1993, the Alaska Volcano Observatory (AVO) responded to episodes of eruptive activity or false alarms at nine volcanic centers in the state of Alaska. Additionally, as part of a formal role in KVERT (the Kamchatkan Volcano Eruption Response Team), AVO staff also responded to eruptions on the Kamchatka Peninsula, details of which are summarized in Miller and Kirianov (1993). In 1993, AVO maintained seismic instrumentation networks on four volcanoes of the Cook Inlet region--Spurr, Redoubt, Iliamna, and Augustine--and two stations at Dutton Volcano near King Cove on the Alaska Peninsula. Other routine elements of AVO's volcano monitoring program in Alaska include periodic airborne measurement of volcanic SO2 and CO2 at Cook Inlet volcanoes (Doukas, 1995) and maintenance of a lightning detection system in Cook Inlet (Paskievitch and others, 1995). [...]. This report presents a summary of responses to reported volcanic activity in Alaska during 1993. Only those events which resulted in a significant investment of AVO staff time and energy (here defined arbitrarily as at least several hours for reaction, tracking, and followup) are included. Typically, over the course of any given year, AVO receives many dozens of phone calls reporting steaming, unusual cloud sightings, or eruption rumors. Most of these are dealt with rapidly (less than 1 hour) and are not tabulated in this report. The phrase 'false alarm', used to characterize several responses, is an eruption report or a report of unusual activity that is subsequently determined to be normal or enhanced fumarolic activity, weather-related phenomena, or a non-volcanic event."
U.S. Geological Survey Open-File Report 96-2
Alaska Volcano Observatory: http://www.avo.alaska.edu/