UPDATE: April 14. 10:34 a.m. : Vulcanologists from OVSICORI and the National Seismological Network reported two strong eruptions at 7:39 a.m. and 7:57 a.m. on Friday.
Vulcanologists say the increase in the emanation of gases, vapor and water from the Poás crater is caused by a volume of fresh magma from deeper levels that is pushing up toward the surface.