The news of Agung has somewhat disrupted the usual pace of information on other volcanoes on the planet.
An additional article is devoted to them today.
Etna continued its emissions from the most recent cone of the southeastern crater on the morning of November 26, 2017, characterized by plumes failing to deploy under strong winds, to rise further from the crater.
Source: Boris Behncke
Since mid-October, the IGEPN has detected an increase in the number of earthquakes and a deformation of the Sierra Negra volcano on Isabela Island in the Galapagos.
The seismic network has detected at least 5 earthquakes of magnitude greater than 3, with an epicenter under or around the caldera.
A caldera ground inflation of about 70 cm per year is measured, the world record level of inflation, which also exceeds the measurements made during the 2005 eruption ... which suggests a next eruption . The deformation also marked the southeast flank of Cerro Azul during the period January-November 2017.
Sierra Negra - 24.11.2017 - deformation map according to InSAR - Figura cortesía del Dr. Falk Amelung (RSMAS). Periode January - November 2017. - IGEPN
An overflight of Popocatépetl on 25 November showed the state of the summit crater after the wave of explosions of the previous days: its internal diameter has increased, reaching 370 meters, and a depth of 110 meters.
The process of construction - destruction of the dome continues therefore, with as a result a reminder of the instructions: do not approach the crater, and stay away from the bottom of the gullies, to avoid lahars and / or landslide.
The overflight of Colima, nearby, on November 21 also shows a crater riddled with its dome, and no trace of emission of fresh lava.
A fumarolic activity marks the edge of the crater, more intense to the northeast. The temperature rise gives a maximum of 186 ° C at the bottom of the crater, as well as a high temperature at the fumaroles. The sulfur dioxide stream is below the detection level.
The activity of Colima remains low and decreasing compared to the past.
Source: University of Colima
After the November 19 ash emission, an overflight of the Great Sitkin crater shows a steam release zone (red arrow on the photo), which is a likely source of these.
The melt depressions, located east of the 1974 lava flows, are due to spring-summer 2017 activity.
Great Sitkin - overview of 21,11,2017 / Worldview-3 Digital Globe license / Chris Waythomas / AVO - USGS
In its communication of November 27th, Phivolcs reports the recording of 19 volcanic earthquakes in the past 24 hours at Kanlaon. A possible degassing could not be observed according to a high cloud cover of the summit.
The volcano is on alert level 2 / moderate instability, accompanied by a prohibited area of 4 km radius; GPS measurements show an inflation of the volcano since December 2015.
For those to whom the news has escaped, the recent discovery of the road to the newly formed lava lake at the Erta Ale in January 2017 by the ever-glittering Guy De Saint-Cyr and Seifegebreil Shifferaw / Adventure and Volcanoes.
This lava lake is fed by a lava flow that crosses it, before cascading down and moving towards the northeast lava field.
The power of this lava field seems to have dropped, if comparaison of two photos from the ESA Sentinel2 satellite.
Sources: Thanks to Tanguy De Saint-Cyr & images Sentinel 2 ESA