Nevado del Huila in Colombia has been showing signs that a new eruption might be starting. Seismicity has increased and minor ash fall has been reported, leading to an increase in the alert level at the volcano to "orange" (high).
Ebeko in the Kuril Islands off Russia and Japan produced a ~8.8 km / 29,000 foot ash plume.
Thermal images of the crater at El Reventador in Ecuador show that hot material is filling in the dome complex - this followed ash-and-steam explosions earlier in the week.
Santa María's Santiaguito (Guatemala) dome produced ash fall, avalanches and was strongly degassing over the last week.
White and grey plumes reached up to ~4 km / 13,500 feet at Colima in Mexico.