Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): new phase of activity, warning of possible explosion
Wednesday Mar 04, 2015 16:07 PM | DOOR: T
Steam plume from Tungurahua volcanoA new phase of activity has started at the volcano. So far, surface activity has been low, with minor explosions and steaming, but it is likely that this activity will increase in the near future.
Since 17 Feb, a gradual increase in seismic activity has been recorded, including the appearance of frequent volcano-tectonic earthquakes since 21 Feb, which reflect rock fracturing, likely caused by pressurized magma intruding into the plumbing system.
A small explosion was reported on 18 Feb, and SO2 emissions, also tell tale of fresh magma approaching the surface, were detected. Moderate inflation at the summit was measured as well.
According to the Geophysical Institute (IGEPN), the following scenarios are most likely for the short-term future:
Scenario 1 (most likely): An important initial (vent-clearing) explosion with the emission of high ash plumes, and the occurrence of pyroclastic flows. During the following weeks, more explosions aat varying sizes would then follow as magma continues to arrive at the crater. This scenario is similar to the eruption of February 2014.
Scenario 2 (less likely): a period of eruptive activity begins gradually with the occurrence of sporadic explosions that increase their frequency and size. Pyroclastic flows are unlikely. This scenario is similar to rashes March 2013.
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- INFORME ESPECIAL VOLCAN TUNGURAHUA N.- 2 (IGEPN)
Thursday, Sep 25, 2014
Activity at the volcano remains at moderate to high levels, consisting of strombolian and small vulcanian explosions. During the past week, ash plumes have been rising 2-3 km above the volcano.+ ... [meer...]
Sunday, Aug 31, 2014
Een reeks van kleine pyroclastische stromen voorgedaan gisteravond, IGEPN gemeld in haar nieuwste speciale bulletin. ... [meer...]
Sunday, Aug 24, 2014
Intermitterende explosieve activiteit van bescheiden omvang blijft op de vulkaan. Een as emissie vliegniveau 280, d.w.z. 28.000 ft (8 km) hoogte en drifting werd west vandaag gemeld. [meer...]
Tungurahua vulkaan (Ecuador) activiteit update: matige tot sterke Stromboli explosies van centrale krater
Tuesday, Aug 19, 2014
De vulkaan activiteit blijft matig met frequente kleine tot middelgrote formaat Stromboli - aan vulkanische-type explosies. ... [meer...]
Monday, Aug 04, 2014
Activiteit blijven stijgen op de vulkaan als nieuwe magma blijft om te komen tot de top. Sinds de eerste as uitstoot een week geleden, hebben meer en sterkere explosies, evenals fasen van continue as en gas emissies en mildere Stromboli activiteit plaatsgevonden. ... [meer...]