In Fuego / Guatemala, Insivumeh reports 4 to 5 Vulcanian type explosions, with abundant ash emissions at a height of 4,800 meters asl, drifting westward over 15 km.
Constant avalanches of blocks from the crater have reached the level of vegetation.
Abundant rainfall in the volcano area during the evening and at night caused lahars in the various drainages, mainly the Rio Pantaleon, and the barrancas Cenizas, Trinidad and El Jute.
In Poas, the eruptive activity of June 20 is characterized by ash emanations emitted by two mouths (see video : annotation in red); The plume is sometimes colored in yellow by the presence of sulfur, sometimes loaded with ash, finer and slightly pink, because of its composition of oxidized materials (Fe2+); At about 13:50 local time, it is raised to more than 400 meters above the crater and disperses towards the southwest.
Sources: Ovsicori & RSN
Poas - 20.06.2017 - took a break on the annotation in red to see the two mouths of gas exit - video Ovsicori
Also in Costa Rica, the Arenal is surmounted on June 20 by a white and straight plume of steam; Atmospheric humidity conditions, calm winds and clear sky make it possible to see this phenomenon more intensely than usual ... although its last eruption dates from 7 years, the internal temperature is always around 230 ° C. According to experts, the Arenal volcano could, at an unspecified time, resume its activity.
Source: Costa Rica Times.