OVSICORI-UNA reported that during 13-15 February a period of almost continuous gas emissions with minor ash content rose 200-300 m above the rim of Turrialba?s active vent.
The plumes drifted NW, W, and SW.
An event at 1330 on 15 February produced a plume that rose 1 km and drifted W.
During the morning of 18 February a plume with low ash content rose from the vent.
An event at 1310 generated a plume that rose 500 m and drifted W.
Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)