Activity has recommenced on the Turrialba : chronology of events.
24/06, 9h46 . In these hours of the night the volcanic tremor amplitude of the Turrialba volcano increases accompanied by ash emanation continue. Winds blow towards the south-west at this time, according to data from the weather station at the top of the volcano.
25/06, 5h20. Since yesterday at 20:05 pm and until now the Turrialba volcano recorded 8 eruptions: Today at 20h05, 21h37, 22h53 , and today at 00h26 , 01h28, 02h26 , 03h10 et 04h20. They will have an intense initial phase which lasts about 10 to 15 minutes. Only eruptions at 20h05 et 21h37 yesterday as well as from 04h20 today could be observed through the thermal camera RSN at the summit, the other, because of cloud cover conditions , most of the time , could not be observed. At this hour, winds is from North-West , according to the meteorological station of the summit.
25/06, 9h10. On the volcano Turrialba yesterday, from June 24 at 20h05 pm and until now, there have been 10 eruptive episodes. the latter has remained until now. These processes are accompanied by tremors (recorded by seismometers RSN) whose magnitude increases to a maximum, stays for a while and then slowly declines. The amplitudes of these tremors associated with ash emissions are minor, with equal amplitudes to those recorded the first days of June and May 2016. Due to bad weather conditions on the volcano, only three of these processes have been observed by thermal camera of the NSR at the top of the volcano (20h05 , 21h37 yesterday and today at 4h20).Note that parts of the eruption column are dispersed to the central crater in small density currents. On the basis of what is observed,eruptions have an intense ash emanation phase which lasts about 10 to 15 minutes. At this hour, the winds blow from the south-west according to the meteorological station of the summit.
25/06, 6h33 . The eruption that began at 16h51, the afternoon of today, June 25 lasted until 17h15 . Then at 17h45, there was another eruption with a duration of about 25 minutes.
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june 26 , 2016.Turrialba , Costa Rica :
Source : Dr. Maurice M. Mora.