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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
 Poas - 01.07.2017 / 4h43 loc. - webcam RSN

Poas - 01.07.2017 / 4h43 loc. - webcam RSN

In Costa Rica, after the discovery of abnormal thermal manifestations noticed on the ground by the volcanologists G.Avrard and J.Pacheco on June 28th, the Poas showed, during the early hours of June 1, an eruptive activity characterized by ejection of magmatic blocks, of metric size, at several tens of meters; These incandescent blocks have fallen back into the active crater, mainly in the vicinity of the ancient lake. The activity lasted from 1:14 to about 5:00 local time.
 
Sources: Ovsicori and RSN

Poas - morning activity of 1 July - Ed: Dr M.Mora / RSN

The Turrialba, where a low-amplitude tremor is maintained, continues to degas; The gases are of high temperature and generate an important nocturnal incandescence. No ash eruptions have been reported in the past 24 hours.
 
Source: RSN

Crater of the Turrialba degassing this 29.06.2017 - phptp Dr. M.Mora
Crater of the Turrialba degassing this 29.06.2017 - phptp Dr. M.Mora

Crater of the Turrialba degassing this 29.06.2017 - phptp Dr. M.Mora

At the Chilio-Argentina border, the Copahue continues its emissions of vapors and gases.
Note: the recently fallen snow is gray by the ash near the top of the volcano.
The aviation code is Yellow.


Source: VAAC Buenos Aires / Webcams and Goes-13; Valecaviahue / Twitter.

Copahue, seen from Caviahue this 01.07.2017 - photo Valecaviahue / Twitter

Copahue, seen from Caviahue this 01.07.2017 - photo Valecaviahue / Twitter

In Japan, the VAAC Tokyo reports three active volcanoes: Suwanosejima, Sakurajima (caldera Aira) and Nishinoshima.
In the Sakurajima, an eruption is reported on July 1 at 7:01 pm local time.


Sources: VAAC Tokyo & Webcam

  Suwanosejima - Volcanic ash advisory 02.07.2017 / 6h03 loc. VAAC Tokyo

 Suwanosejima - Volcanic ash advisory 02.07.2017 / 6h03 loc. VAAC Tokyo

 Sakurajima crater Showa - 02.07.2017 / 10h42 local - webcam via James Reynolds

Sakurajima crater Showa - 02.07.2017 / 10h42 local - webcam via James Reynolds

 Nishinoshima - new map of the GSI on 30.06.2017
 Nishinoshima - new map of the GSI on 30.06.2017

Nishinoshima - new map of the GSI on 30.06.2017

In Sinabung / Sumatra, activity continues with variants on 29-30 June and 1 July.


Sources: cited photographers

Sinabung - 29.06.2017 / 10h46 loc.- photo Endro Lewa

Sinabung - 29.06.2017 / 10h46 loc.- photo Endro Lewa

  Sinabung - activity from 01.07.2017 / 01h52 loc. - photo Firdaus Surbakti via Beidar Sinabung

 Sinabung - activity from 01.07.2017 / 01h52 loc. - photo Firdaus Surbakti via Beidar Sinabung

In Kilauea, the activity of the 61 g lava flow is characterized by the appearance of new skylights, and the emission of a beautiful pahoehoe flow on the Pali. Fluid lava continues to enter the ocean at Kamokuna, rapidly rebuilding the delta whose surface area exceeds 12,000 m², but presents new cracks
 
Provided by: Paradise helicopters.

Kilauea - 61 g lava flow breakout - photo Paradise Helicopters

Kilauea - 61 g lava flow breakout - photo Paradise Helicopters

Note: more than 87 earthquakes mark the Loihi submarine volcano south of Big Island. They testify to a seamount activity.
 
Source: AVO - USG

Loihi seamount - earthquakes on 01.07.2017 - Doc. USGS changed by Ken Rubin

Loihi seamount - earthquakes on 01.07.2017 - Doc. USGS changed by Ken Rubin

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