Turrialba volcano (Costa Rica): activity updates and eruption news
Turrialba volcano (Costa Rica): new series of phreatic explosions
Monday Jul 25, 2016 15:37 PM | BY: T
Eruption of Turrialba this morning (image: RSN)A series of eruptions has been occurring from the volcano's active western crater during the night and this morning and is likely still going on.
Costa Rican volcanologist describe the explosions which each lasted a few minutes as phreatic, i.e. driven by overheated water from the hydrothermal system suddenly flashing into steam. The first explosions occurred at 21:22 and 22:16 local time last night and were followed by similar ones at 07:22 and 08:25 this morning.
The eruptions were similar to many others in the ongoing phase of intermittent explosions at the volcano during the past months; they ejected ballistic blocks of high temperature to the crater rim and generated ash plumes that rose several hundreds of meters before drifting SW where ash fall occurred in nearby areas.
Tuesday, Jul 12, 2016
Activity of the volcano has remained more or less unchanged during the past weeks. The western crater continues to produce intermittent (every few days) episodes of continuous, but relatively mild ash emissions. Not all of them can be observed due to cloud cover, but show up from the accompanying volcanic tremor. ... [more]
Monday, Jun 27, 2016
The volcano continues to produce intermittent mild ash emissions in phases that last several hours to days. During yesterday, ash plumes rose 200-300 meters from the crater and were quickly blown and dispersed to the west. ... [more]
Thursday, Jun 16, 2016
A new phase of activity has begun at the volcano. Starting from 20:00 local time yesterday evening, tremor increased, followed by ash emissions since 01:30 this morning. ... [more]
Friday, Jun 03, 2016
Following a 4 days pause in activity, new ash emissions have been occurring from the volcano again since yesterday. ... [more]
Wednesday, Jun 01, 2016
Activity has decreased significantly during the past days. Since 2 am local time on 27 May, RSN has detected a substantial and abrupt decrease in the level of seismic activity, which also marks the end of the most recent period of frequent, moderate ash emissions. ... [more]