Article in Colima Notices said the shies have not been this dark from ash since 1913
Here there is a summary of the activity of Volcán de Colima divided into periods. The historical activity is important to study since it can indicate what is possible in the future. Currently the activity is showing a tendency to increase. Concern exists since there is evidence of an approximate 100 year cycle which terminates in a large Plinian eruption. The last occurred in 1913.
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