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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
First photo of the fissure eruption 2016 - Doc. Imazpress Reunion

First photo of the fissure eruption 2016 - Doc. Imazpress Reunion

 Location of the eruptive fissure - Doc. Fournaise.info

Location of the eruptive fissure - Doc. Fournaise.info

The eruption continues at Piton de la Fournaise, without changing of location ... it would be located behind the Château Fort (take Bert Piton trail to the Nez Coupe Tremblet). The OVPF said that the tremor was sharply divided by five since the beginning of the eruption; the signal strength has stabilized for several hours.
Several fountains are present and a spatter cone drafted.
Due to adverse weather, the observatory has no plans to field visit today.

Update by Fournaise.info / 12h:

Since 8:45 this morning, the observatory recorded a significant drop of volcanic tremor. At 11:00 the tremor stopped, and only a residual degassing signal persists.
This means very likely stopping the flow of the lava in surface.

No hypothesis is discarded on the evolution of the situation in the coming days.

Sources:
- OVPF ratio of 26.05
- Local media Imazpress, Clicanoo, Furnace-info

From 24 May, two new lava flows have activated either side of Pu'u O'o; an overview by the HVO on 25 May shows that the breakout (breaking under pressure of a lava tube) north feeds a channeled lobe of  950 m long and several small channels.

The breakout East feeds small flows around the vent; Activity remains close to the vent. Deflation continues to Pu'u O'o, where a spatter cone present continuously a glow.

In addition, the surface activity continues on the field cast of 27 June, with small breakouts located 5 km NE Pu'u O'o Cone

Source: HVO

New breakout opened on 24 May on the slopes of Pu'u O'o - photo HVO

New breakout opened on 24 May on the slopes of Pu'u O'o - photo HVO

 Pu'u O'o and  27 June lava flows - 2 locating new breakouts - left, on 24.05, right on  25.05 - click to enlarge the maps of  HVO Pu'u O'o and  27 June lava flows - 2 locating new breakouts - left, on 24.05, right on  25.05 - click to enlarge the maps of  HVO

Pu'u O'o and 27 June lava flows - 2 locating new breakouts - left, on 24.05, right on 25.05 - click to enlarge the maps of HVO

The accumulation of ash in the high part of Cotopaxi, coupled with heavy rains have caused a secondary lahar considered as small by the Secretariat of the management of risks Ecuadorians. According to IGEPN these side lahars pose no risk to the population, while impressive.

Source: El Comercio & Ambiente Ecuador

 

Cotopaxi - secondary lahar - photo 05.25.2016 Ambiente Ecuador

Cotopaxi - secondary lahar - photo 05.25.2016 Ambiente Ecuador

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