Event Name : Shishaldin 2005/12
|Start:||December 22, 2005 ||Observed|
|Stop:||December 22, 2005 ||Observed|
|Fumarolic or hydrothermal activity: ||
|Seismicity with no confirmed eruption: ||
|Eruption Type:||Not an eruption.|
From McGimsey and others (2007): "Following more than a year of relative quiescence, on December 22, 2005, a pilot reported a steam plume rising 3,000 ft above the summit of Shishaldin. The FAA issued an Urgent Pilot Report. Commensurate with this report, a few small explosions were recorded on the pressure sensor located on the north flank. AVO seismologists also noted that the amplitudes of seismic events had increased since about mid-November. Because no ash apparently was released and the activity did not continue, AVO did not issue a formal information release nor increase the level of concern color code."