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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

Nicaragua is on the move :

Momotombo had yesterday February 15 at 13:04 loc. a new explosion of gas and ashes; it lasted over 8 minutes.

On 14 February, the SINAPRED indicates an increase in seismic activity at Cerro Negro and an explosion in Telica

Source: La Prensa Nicaragua.

 

Momotombo - 02.15.2016 / 1:04 p.m. to 1:12 p.m. - explosion - doc Ineter / La Prensa Nicaragua

Momotombo - 02.15.2016 / 1:04 p.m. to 1:12 p.m. - explosion - doc Ineter / La Prensa Nicaragua

In Chile, an intense emission of ashes,  accompanied by a plume rising to 1,500 meters marked the Copahue Volcano on February 15 between 9:30 and 9:50 loc. The ash cloud moved over one hundred kilometers, according to imagery of Goes-13 satellite.
 

Copahue - 02/15/2016 - webcam Red de emergencia

Copahue - 02/15/2016 - webcam Red de emergencia

A rare publication of Povi shows the peaceful activities of the Villarica, with a low emission of gas, and glow at the lava lake in the summit crater.

Villarica - 02/15/2016 - Doc. Povi

Villarica - 02/15/2016 - Doc. Povi

In Indonesia, the Sinabung and the Bromo continue each their business.

Bromo still has gas and ash emissions, characterized by a plume less charged on 15 February.

A lull in the rythm of the explosions at Sinabung showed growth of t;he dome / summit lava lobe.
A review of the lava lobe in its distal part shows its importance, and cracks running through it.

 

Bromo - 02.15.2016 / 6:38 - photo Radio Star Jogja

Bromo - 02.15.2016 / 6:38 - photo Radio Star Jogja

Sinabung - summit dome / lobe 02.15.2016 / 3:04 p.m.- top, sector E SE - down, S-SE sector - Photos endrolewa
Sinabung - summit dome / lobe 02.15.2016 / 3:04 p.m.- top, sector E SE - down, S-SE sector - Photos endrolewa

Sinabung - summit dome / lobe 02.15.2016 / 3:04 p.m.- top, sector E SE - down, S-SE sector - Photos endrolewa

Sinabung - the distal tip of the tongue of lava, covered by large cracks (the scale is given by the trees) - Photo endrolewa 02/15/2016
Sinabung - the distal tip of the tongue of lava, covered by large cracks (the scale is given by the trees) - Photo endrolewa 02/15/2016

Sinabung - the distal tip of the tongue of lava, covered by large cracks (the scale is given by the trees) - Photo endrolewa 02/15/2016

At Kilauea, the Hawaiian Volcano Observatory offers us great photos of the current activity.

The lava lake  of Halema'uma'u rose to 30 meters under the edge on February 12, before falling to 40 meters on February 15 ; the spaterring in the lava lake is accompanied by typical fluctuations in the tremor, and the summit of the volcano shows a slight inflation.

 

The lava lake in Halema'uma'u - HVO picture 02/12/2016

The lava lake in Halema'uma'u - HVO picture 02/12/2016

The Pu'u O'o present glow in the crater and at the skylights of the lava tube on its northeast flank. Seismicity remains low, and little soil movements are recorded by tilt meters.

The pressure remains strong within the lava flow, as evidenced by the release of lava atop a mound overlooking the lava field of 3 meters.

A closer view of Puʻu ʻŌʻō, looking northwest. The vent for the June 27th lava flow is at the right edge of the photograph, near the source of white fume. Mauna Loa (upper left) and Mauna Kea (upper right) are visible in the distance.

A closer view of Puʻu ʻŌʻō, looking northwest. The vent for the June 27th lava flow is at the right edge of the photograph, near the source of white fume. Mauna Loa (upper left) and Mauna Kea (upper right) are visible in the distance.

A narrow stream of lava pours from the top of a tumulus (roughly 3 meters, or 10 feet above the surroundings), attesting to the fluid pressure in the interior of the flow.

A narrow stream of lava pours from the top of a tumulus (roughly 3 meters, or 10 feet above the surroundings), attesting to the fluid pressure in the interior of the flow.

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