Scientists Identify Source of 1831 Volcanic Eruption

Researchers have identified the Zavaritskii volcano on Simushir Island as the source of the 1831 eruption that caused significant global climate changes, including a 1°C temperature drop and bizarre atmospheric effects, such as a blue sun. This volcanic event led to crop failures and famines across the Northern Hemisphere, documented by historical figures like composer Felix Mendelssohn, who described the summer as 'cold as winter'. The identification was made possible through advanced analysis of ash deposits found in polar ice cores, marking a significant breakthrough in understanding the impact of historical volcanic activity. The remote location of the volcano contributed to the mystery surrounding the event for nearly two centuries. This study highlights the challenges in monitoring volcanic activity in poorly observed regions and the importance of historical climate events in understanding our planet's climate dynamics.