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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

Guatemala's Santiaguito continues to produce strong explosions; May 19, 2016 at 9:34 and 9:56, they were accompanied by a plume of gray ash amount to 4,500 meters asl, and pyroclastic flows on the southern flanks.
 

Santiaguito - 05.19.2016 / 9:36 - ash plume and pyroclastic flows - photo INSIVUMEH

Santiaguito - 05.19.2016 / 9:36 - ash plume and pyroclastic flows - photo INSIVUMEH

Santiaguito - 05/19/2016 -  the eruption from the nearby houses - photo Stereo100xela / Twitter

Santiaguito - 05/19/2016 - the eruption from the nearby houses - photo Stereo100xela / Twitter

Of note, a pileus cloud type formed at the top of the volcanic plume, witnessed the high speed training, then was pierced by it.

 

Santiaguito eruption 19/05/2016 - formation of the plume wearing a pileus (see halfway up on the top photo) - Photo Gio11Lopez

Santiaguito eruption 19/05/2016 - formation of the plume wearing a pileus (see halfway up on the top photo) - Photo Gio11Lopez

At Fuego, the eruption of May 18 generated pyroclastic flows "type Boiling over", according INSIVUMEH.

This phenomenon is caused by a magma reboiling and a tangential outlet of abundant quantities of volcanic material and pyroclastic flows, without explosion.
 

Fuego - 18/05/2016 - pyroclastic flow type Boiling over - photo Clima Guatemala / Twitter

Fuego - 18/05/2016 - pyroclastic flow type Boiling over - photo Clima Guatemala / Twitter

Both volcanoes remain under close monotoring : considering the rains season already present , lahars are likely to form in the evening or during the night.

Sources: INSIVUMEH & Conred

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