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Earth of fire

Actualité volcanique, Article de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques
Activity of Pacaya, Waimangu Mud rift and Copahue.

Activity of Pacaya, Waimangu Mud rift and Copahue.

Pacaya volcano has shown in the afternoon of June 15, 2016 increased seismicity and activity MacKenney crater, characterized by a few explosions and impacts, as well as nocturnal glow. The tremor shows the ascent of magma to the surface.

This activity could lead to lava flows and larger explosions.

Source : Insivumeh / Guatemala
 

MRS Pacaya of 06/15/2016 - Doc. INSIVUMEH

MRS Pacaya of 06/15/2016 - Doc. INSIVUMEH

GeoNet informed us today of an eruption in the geothermal area of ​​Waimangu / New Zealand, scoring between 17 and 20 May 2016 Mud Rift site, a geothermal vent in Raupo Pond crater formed in 1906. Its recent activities date from 197/79 and 1981.

The eruption of May 2016 is coming  from three sources, the most active in western Mud main rift, involving vapor and fine sludge. Not visible on nearby seismographs, we now notice a flood of fluids, and browning of the vegetation without
breaks; some collapses are visible around two small vents. So it seems that the episode was short, including steam and a little water (a mud geyser)

Inferno crater lake, near, saw its level fluctuate of 6-9 meters, and overwhelmed every 40 days. Frying Pan Lake, neighbor, decreased its flow. These crater lakes exhibit interaction, the level of one increasing while the level of the other go lower, and vice versa.

It seems that the geothermal system of Inferno crater lake increased in energy, leading to the  reactivation of Rift Mud.

Source: GeoNet

 

 Mud Waimangu Rift - Stones and vegetation scorched by a small eruption hydrothermal - photo GeoNet

Mud Waimangu Rift - Stones and vegetation scorched by a small eruption hydrothermal - photo GeoNet

 Inferno crater lake - photo Waimangu volcanic valley

Inferno crater lake - photo Waimangu volcanic valley

Inferno Crater lake - lake level changes - Doc.GeoNet

Inferno Crater lake - lake level changes - Doc.GeoNet

On June 14, between 4:45 ET 4:49 local, seismic stations of Copahue / Chile recorded four volcano-tectonic earthquakes related to fracturing of rocks, whose magnitude stronger of 3.8 ML, to 16.4 km of the crater El Agrio.

Source; SERNAGEOMIN


Bonus: Lenticular Clouds piled on top of Mount Etna

 

Etna - Lenticular clouds in "pile of plates" - photo EtnaWalk via Twitter

Etna - Lenticular clouds in "pile of plates" - photo EtnaWalk via Twitter

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