On 12 August INSIVUMEH reported that Strombolian explosions at Pacaya?s Mackenney cone were observed.
During 12-13 August the number of Strombolian explosions increased to a rate of 5-7 per hour, and ejected incandescent material was mainly visible at night.
Explosions vibrated structures in communities within a 5-km radius.
Activity continued at a similar level on 15 August.
Source: Instituto Nacional de Sismologia, Vulcanologia, Meteorologia, e Hidrologia (INSIVUMEH)