Roundup of Global Volcanic Activity
Shiveluch (Kamchatka): The volcano’s lava dome continues to be active. At night, constant incandescence can be seen and frequent small avalanches occur. A dilute ash plume can be seen rising from it.
Colima (Western Mexico): Explosions of small to moderate size continue to occur from time to time at the volcano.
Cotopaxi (Ecuador): The activity at volcano continues, but has been less intense during the past days. Weak to moderate intermittent explosions produce ash plumes that vary in height from a few hundred to 1000 meters. The ash was analyzed in a Belgian laboratory and apparently consists only of fragmented older rocks from the upper conduit. This means that the activity so far has been phreatic in origin and not involved fresh magma. It remains uncertain whether or not it will lead to magmatic activity, i.e. whether or not fresh magma arrives at the vent.