Description: From Cameron and others (2020): "Eruptive activity and volcanic unrest were not observed at Frosty Peak in 2016, but residents 15 km (9 mi) to the northeast in Cold Bay, Alaska, reported an avalanche to AVO on November 12. Cold Bay resident Michael Livingston sent AVO photographs of the avalanche and rockfall taken by Happy Kremer (fig. 24). These images show that a small part of Frosty Peak's bedrock spire collapsed and formed a prominent linear debris avalanche track across the snow.
"The Aviation Color Code and Volcanic Alert Level remained UNASSIGNED, because Frosty Peak is not seismically monitored by AVO and the avalanche was not initiated by volcanic activity. On November 14, AVO released an Information Statement about the event stating that, 'The collapse is not due to volcanic activity and was likely the result of the failure of unstable, altered, and weakened rock that makes up the summit of the volcano. Similar rock, ice, and snow avalanches have occurred previously at Frosty, most recently in 2001 (McGimsey and others, 2004).'"