News of Aso, Ambrym, Momotombo, Santiaguito and Sinabung volcanoes.

The Asosan, a volcano on the Japanese island of Kyushu, on alert level 2 since 11/24/2015, experienced an eruption this February 18 to 4:59 p.m. loc., accompanied by a light colored plume. It was reported by the Tokyo VAAC on the basis of information Himawari-8 satellite, at 8:05 UTC.

The caldera of Asosan home to 17 cones, whose main activity is located in the last century at Nakadake crater. Historical eruptions of Aso consist of emission of ash, interspersed periodically with strombolian or phreatomagmatic activity (GVP)

Wellington VAAC reported an ash plume that 18.2.2016 issued by the volcano of Ambrym in Vanuatu. It reaches a height of 2,700 meters before drifting eastward.

This observation suggests an explosive activity at one of its active vents, presumably Marum and Benbow, each containing an active lava lake. This kind of activity has been reported in recent months, without other changes of activity.

Source: VAA VolcanoDiscovery & C Wellington

In Nicaragua, one explosions follow another at Momotombo, respectively to 9:21 ET 11:08 local time. According A.Moreira, a specialist nearby, ashes and rocks expelled are mounted to 400 meters and incandescent materials have fallen at the foot of the volcano, and have developed small forest fires. The eruptive activity is unpredictable and he advises not to approach the Momotombo.

Sources: Webcams Ineter & Red Sismologica of Nicaragua
 

For the beauty of the images, a video of Zach Voss, with the support of the Boise State University / NSF, filmed during an Interuniversity expedition to Santiaguito in eruption.

The INSIVUMEH reports that over the past 24 hours, the dome maintains a low white outgassing, with some explosions producing plumes rising to 3,200 meters asl. before moving eastward. Ash fallout are possible in Quetzaltenango, San Marcos Palajunoj and Santa Maria de Jesus.

Sources: INSIVUMEH & Conred
 

News from the Sinabung :  growth (and the collapse that follows) of the summit lava dome and pyroclastic flow of the day.