Activity at Santiaguito, Turrialba, Rincon de La Vieja, Sinabung and Sakurajima.

Santiaguito continues its activity in Guatemala, with two loud explosions in 24 hours, accompanied by pyroclastic flows from the edge of Caliente crater to the gullies to the east and west,  and a plume rising to 4,500 meters asl before moving west and southwest 40 km.

Sources: INSIVUMEH and Conred

In Costa Rica, Turrialba experienced this May 2, 2016, between 4:40 and 7:10, seven explosions ... before the summit was covered with clouds.

These explosions are qualified small, there were accompanied by moderate ash plumes rising from 500 to 1,000 meters above the crater. The ashes were scattered on the southwest sector.

Note that Ovsicori reported a moderate phreatic explosion on May 1 at 14h37 at Rincon de la Vieja. The seismic signal associated with the explosion was recorded during 11 minutes

Sources: Ovsicori and RSN

In Sinabung, activity continues again and again, only documented but no news of the observatory.
 

A video of the activity of Sakurajima April 30, 2016