Alaska Volcanoes

This data lists the historically active volcanoes of Alaska and the year of the last major eruptive event. The volcanoes listed meet at least one of the following criteria since 1700 CE: 1) Documented, unquestioned eruption OR 2) A strongly suspected eruption, often an eruption documented in a historical account with very little information. Current geologic knowledge must not contradict the eruption account, OR 3) Persistent (usually on the order of decades, but certainly longer than several months) fumaroles, with temperatures (where measured) within approximately 10 degrees C of the boiling point, OR 4) Significant, measured, volcanic-related, non-eruptive deformation, OR 5) Documented earthquake swarm with strongly suspected volcanic cause. All files can be downloaded free of charge from the DGGS website http://doi.org/10.14509/30851.本数据集列出了阿拉斯加地区历史上有活动记录的火山及其最近一次大规模喷发事件的年份。本次收录的火山需满足公元1700年以来的至少一项判定准则：1）有明确记载且经核实无误的火山喷发；2）高度疑似的喷发事件，通常指历史记述中记载但信息有限的喷发记录，且当前地质研究结论与该喷发记述不存在矛盾；3）持续存在的喷气孔活动（持续时长通常达数十年，且显著超过数月），其实测温度（若有记录）与沸点的差值在约10摄氏度以内；4）经实测的显著火山相关非喷发型地表形变；5）有明确记载的地震群活动，且被高度怀疑为火山成因。所有数据文件均可从DGGS官网http://doi.org/10.14509/30851免费下载。