The eruption in the Galapagos Islands continues strongly from the effusive vent inside the caldera, near its south shore. A detailed report of the Ecuadorian Institute of Geophysics confirms that the current intra-caldera activity must have started between 13 and 16 June, probably from a new fissure vent near or on the southern edge of the caldera. The lava flows of this vent covered the lava flows of 1982 on the floor of the caldera.
The lava that flowed from the first phase of the eruption, issued by an eruptive fissure opened in parallel and just outside of the caldera, on its southern edge South – East and East, seems to have ceased to be powered approximately in the same time as the new activity started inside the caldera.
Using thermal images obtained during the flight of May 29 and June 12, and the corresponding digital images, as well as information obtained from various satellite images that have been received, it was tried to delineate areas that were covered by different lava flows on the flanks until, in some cases, the ocean and those who descend into the caldera. The establishment of the zones is preliminary, the effusive volcanic activity continues and new lava flows could occur, covering new areas on the sides and in the caldera.
29/06/2015. Wolf , îles Galápagos, Equateur:
Source : T Pfeiffer , IGEPN.
Photos : Planet.fr .