Volcanos

Roundup of Global Volcanic Activity

Gamalama (Halmahera): A phreatic explosion occurred yesterday (16 July) at 10 am local time, producing an ash plume that rose 1500 m. Ternate's airport was temporarily closed following the eruption. The eruption had been preceded by increasing seismic activity since late June. The alert level of the volcano remains at 2 (waspada) on a scale of 1-4, but VAAC Darwin raised the aviation color code to "orange". An exclusion zone of 1.5 km around the summit is in place.

Colima (Western Mexico): Activity remains exclusively effusive, and overall seems to be decreasing. The lava flow on the southern flank continues to advance slowly, approx. 200 meters per day. Rockfalls from other areas of the crater have been more rare than during the previous day. During an overflight this morning, we could see that last week's lava dome no longer exists and that the southern rim of the crater is breached, through where the lava flow emerging from a vent in the crater exits onto the steep flank. Vigorous degassing creates a steam plume rising up to approx. 1 km from the crater.