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Archived news:

Tuesday, Nov 29, 2011
Tungurahua, Equador´s most active volcano and one of its most dangerous ones, has started a new eruption. Hundreds of people living in nearby villages have been evacuated. ...more [read all]
Sunday, Nov 27, 2011
Floating steaming lava blocks
Floating steaming lava blocks
Steaming lava blocks on 27 Nov photographed from the air by Guardia Civil / INVOLCAN
Steaming lava blocks on 27 Nov photographed from the air by Guardia Civil / INVOLCAN
[update 27 Nov] ...more [read all]
Friday, Nov 25, 2011
The Colombian volcano monitoring institute INGEOMINAS has raised the alarm level for Galeras volcano, after a number of so-called tornillos, a characteristic seismic signal often preceding eruptions at Galeras, were detected in recent days. Tornillos consist of a screw-driver shaped signal of rapdily increasing and then slowly decreasing harmonic tremor and preceded most eruptions of Galeras between 1992 and 2010.
Thursday, Nov 24, 2011
The active area seen from the South coast.
The active area seen from the South coast.
Wide-angle view over the Las Calmas Sea showing both the active spot 1 km off the coast and another smaller one located 3 km off the coast (right in the picture)
Wide-angle view over the Las Calmas Sea showing both the active spot 1 km off the coast and another smaller one located 3 km off the coast (right in the picture)
The area of upwelling water above the new submarine vent(s) ca. 1 km off the south coast near La Restinga has increased. Muddy water and sometimes foam are visible at the spot, forming larger and smaller circular areas surrounded by greenish water drifting west. The activity occurs in irregular intervals of typically 20-40 minutes. ...more [read all]
Tuesday, Nov 22, 2011
The Guatemalan geophysical survey SERNAGEOMIN reports increasing explosive activity from Fuego volcano, one of the country's most active volcanoes. Fuego was observed producing ash clouds reaching 1500-2000 m above the summit crater (at ca. 3600 m altitude) which drifted SW and reached up to 20 km distance where they produced some ash fall, reported in the communities of Panimaché, Morelia, Sangre de Cristo, and Santa Sofía. ...more
Monday, Nov 21, 2011
The helicopter of Guardia Civil above the new submarine vent ca. 1 km offshore
Both areas of water discoloration are shown in this picture
Both areas of water discoloration are shown in this picture
Today, a new spot of upwelling water appeared at ca. 1 km distance off the south coast near La Restinga, near the location of the first submarine vent. Water discoloration, foam on the surface and flattened sea water were clearly visible in this area (see attached photos). We interpret that a new submarine vent is active there. ...more [read all]
Tremor has decreased slightly, but earthquakes continue. No visible activity was present near La Restinga yesterday, but signs increase that something could be going on in the northern sector at depth, where part of the tremor has now been localized. Also, slight inflation is measured for the El Golfo valley. ...more [read all]
Saturday, Nov 19, 2011
Increasing volcanic tremor (19 Nov), image courtesy IGN
Increasing volcanic tremor (19 Nov), image courtesy IGN
The new area of upwelling water, located ca. 300 m offshore (19 Nov)
The new area of upwelling water, located ca. 300 m offshore (19 Nov)
During our observations from near the south coast at La Restinga yesterday, we could not observe any activity at the surface of the water. This corresponded well with a sharp decrease in tremor measured by the Instituto Geográfico Nacional (IGN). ...more [read all]
Thursday, Nov 17, 2011
A brown spot is visible above the submarine vent.
A brown spot is visible above the submarine vent.
At times, upwelling water causes the surface of the water to cover with foam.
At times, upwelling water causes the surface of the water to cover with foam.
The volcanic tremor measured at El Hierro remains at very high levels and in sharp contrast to visible activity, feeding speculations and fear about new volcanic vents opening up somewhere on or near the island. Some fear such a new vent could be located in the El Golfo Bay, near Frontera, since most of the (deep) earthquakes in recent days are concentrated beneath the northern sector of the island. However, so far, these earthquakes are very deep (ca. 20 km) and do not point towards an immediate eruption in this area, rather are intrusions of dykes in the upper mantle beneath the island. ...more [read all]
Wednesday, Nov 16, 2011
Tourists at the eruption site of Nyamuragira (9? Nov, photo: ©Cai Tjeenk Willink-Virunga National Park)
Tourists at the eruption site of Nyamuragira (9? Nov, photo: ©Cai Tjeenk Willink-Virunga National Park)
The eruption of Nyamuragira (9? Nov, photo: ©Cai Tjeenk Willink-Virunga National Park)
The eruption of Nyamuragira (9? Nov, photo: ©Cai Tjeenk Willink-Virunga National Park)
The eruption at Nyamuragira, stated to be the "largest one in 100 years" in the media (arguably, perhaps it is rather one of the most accessible and beautiful ones), continues into the second week. The Virunga National Park in Goma offers guided overnight treks to see the eruption of the volcano from close. ...more [read all]

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