The 1915 volcanic eruption of Lassen Peak in California provided dramatic sunrises and sunsets in the northern hemisphere for the year . These skies provided artistic inspiration for Thomson and other artists in the same way that the eruption of Krakatoa in the previous century had inspired Edvard Munch . Sky effects were one of Thomson 's main interests for the entire year , indicated by his heightened use of colour
eruption of Krakatoa
1883 eruption of Krakatoa
Tom Thomson