The internal activity in the past 48 hours is high , mainly due to the increase in sulfur dioxide emissions. It is important to note that these levels can fluctuate from day to day, as has happened on other occasions. No observations of surface activity, which is assumed to remain at the same levels as before.
Seismicity: In the last 24 hours 20 events long period (LP) were recorded, and 113 episodes of tremor (TR).
Gas: From 7:00 to 5:00 p.m. yesterday, were registered by the DOAS instruments, an emission of 3477 t / d of SO2, average value obtained from 62 measurements.
Observations, emissions and ash: The volcano remained mostly covered and despite some clouds, we do not have direct observations of the crater.
Rain: There was no rain in the area.
The report, on a daily basis will be published at 12:00 (TL) as the behavior of the volcano warrants. In the case of an increase or a change in the behavior of the volcano will be issued a special report.
State of activity:
It refers to know if the volcano is erupting or not.
An « active without eruption » volcano shows variations of seismicity, gas emission, and surface observations, including fumaroles, gas columns, explosions and even ground water without presence of surface magma (molten rock).
A volcano « erupt current » shows emissions of magma in the form of domes, lava flows, eruptive columns, ash and / or pyroclastic flows.
The level of internal activity is the balance that occurs between instrumentally monitored data from the basic level which is known to the volcano, and for that the defined levels are « low« , « moderate », « high« or « very high ».
The surface activity refers to all the observations who are on the surface as fumaroles, columns of gas, ash exits, explosions, etc.
July 24, 2015. Cotopaxi, Equateur :
Photo : José Luis Espinosa Naranjo.