Vulcanologists conducted an inspection of Poás and found rocks of various diameters ranging from 40 centimeters to 2 meters (1.3-6.5 ft) that had been hurled as far as one kilometer through the air.
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.