OVSICORI-UNA reported continuing gas-and-steam emissions from vents Boca A and Boca C on the crater floor of Poás during 24-30 April. Although emissions from Boca C often contained low ash content, no ash was present for a period of time during 25-27 April. Plumes intensified on 28 April and rose several hundred meters high. A sulfur odor was reported in Sarchí and Grecia (both about 17 km SW) on 25 April. Incandescence from Boca A was visible at night during 27-28 April and from both Boca A and Boca C at night during 29-30 April.
Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)
