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Earth of fire

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

Publié le par Bernard Duyck
Publié dans : #Actualités volcaniques

Not much to eat today ... At Kilauea, the eruption continues; in the Galapagos, Mirova no longer sees any thermal anomaly, a small eruption in Krakatau.

Kilauea East rift zone - the spatter and cinder cone on the fissure 8 - photo instagram 19.06.2018 by Forest Lanning

Kilauea East rift zone - the spatter and cinder cone on the fissure 8 - photo instagram 19.06.2018 by Forest Lanning

An amazing day at Kilauea's Leilani Eruption... more later!

On fissure 8 in the eastern rift zone of Kilauea, the spatter and cinder cone is still growing, and the fountains, reaching 60 meters in height during the night, feed a lava flow, where waves are visible in the channel close to the vent, and move at 7.7 m / s.

The channel overflows in several places creating pahoehoe flows that move slowly.

Fissures 6, 15 and 16 ooze from the lava and degass

The entry of the lava into the ocean is done in 2 places; on the lava delta, small basins form at the mercy of the tides.

Kilauea East rift zone - entrance to the lava at sea and tidal pools - photo Paradise helicopters

Kilauea East rift zone - entrance to the lava at sea and tidal pools - photo Paradise helicopters

In Krakatau, Magma Indionesia reports a small Strombolian eruption on 19 June at 19:04 local time, with ejection of incandescent materials 200 meters high.

At the seismicity level, mainly dominated by superficial volcanic earthquakes, the number of emission earthquakes has increased to  gradually form a continuous tremor.

Krakatau - 19.06.2018 - photo Juhdi Black via Aris Yanto

Krakatau - 19.06.2018 - photo Juhdi Black via Aris Yanto

Krakatau - seismicity on 19.06.2018 - Doc.Magma Indonesi

Krakatau - seismicity on 19.06.2018 - Doc.Magma Indonesi

For the rest, it is mainly new pre- and post-eruptions:

The IGEPN recalls the collapse of the caldera of La Cumbre volcano on Fernandina observed on June 19, 1968. "The continuous activity of the day was accompanied by major shocks preventing observers from standing up; the collapse caused thick smoke as thousands of tons of rock fell from the walls and platforms collapsed ... "  (story in GVP)

Fernandina - 19.06.1968 - Collapse of La Cumbre caldera - photo IGEPN

Fernandina - 19.06.1968 - Collapse of La Cumbre caldera - photo IGEPN

In Fuego, images provided by the ARIA / Advanced Rapid Imaging and Analysis team using Sentinel-1 satellite data, show the areas affected by the eruption of the volcano and its lahars and pyroclastic flows. The different drainages are highlighted.

Fuego - zones affected by the eruption - Doc. Nasa / JPL Caltech / Aria

Fuego - zones affected by the eruption - Doc. Nasa / JPL Caltech / Aria

In Alaska, photos taken by an Alaska Air pilot on June 17 show a weak outgassing and a small ash deposit spanning the summit from the vent, following the June 10 eruption at Great Sitkin.
 

Great Sitkin - 17.06.208 / AlaskaAir pilot Dave Clum - and satellite image from 10.06.2018
Great Sitkin - 17.06.208 / AlaskaAir pilot Dave Clum - and satellite image from 10.06.2018

Great Sitkin - 17.06.208 / AlaskaAir pilot Dave Clum - and satellite image from 10.06.2018

At Sinabung, an image of the webcam shows an activity on June 19 at 21:17
 

News about Kilauea, Krakatau, Fernandina, Fuego, Great Sitkin and Sinabung

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