Overblog
Editer l'article Suivre ce blog Administration + Créer mon blog

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
Kilauea East rift zone - 10.07.2018 - cone on fissure 8 with fumaroles due to rain on hot lava - photo Bruce Omori

Kilauea East rift zone - 10.07.2018 - cone on fissure 8 with fumaroles due to rain on hot lava - photo Bruce Omori

In the eastern rift zone of Kilauea, fissure # 8 continues to discharge huge volumes of lava into the perched channel.

Mid-channel disturbances produced localized overflows on the 10th of July during the afternoon, covering the lavas previously issued.

Following the rains, the still hot lava field smokes abundantly, and small ephemeral tornadoes have been observed.

Around the Kapoho crater, a large volume of lava flowed westwards, advancing in the crops; the original channel has remained partially filled, and feeds the flow of the costal plain. Small brush fires are reported on the banks of the Kapoho.

The southern edge of the lava inlet in the ocean showed only weak signs of movement towards Ahalanui Beach Park.

The fissure # 22 still shows a little spattering.

At the top, the gradual subsidence of the caldera continues.

 

Sources: HVO-USGS, Bruce Omori

Kilauea East rift zone - 10.07.2018 - small ephemeral tornadoes - doc. webcam and photo Bruce Omori
Kilauea East rift zone - 10.07.2018 - small ephemeral tornadoes - doc. webcam and photo Bruce Omori

Kilauea East rift zone - 10.07.2018 - small ephemeral tornadoes - doc. webcam and photo Bruce Omori

Kilauea East rift zone - Kapoho crater surrounded by lava - brush fires on the lower edges - Photo Epic Lava / Aloha Skies aviation

Kilauea East rift zone - Kapoho crater surrounded by lava - brush fires on the lower edges - Photo Epic Lava / Aloha Skies aviation

In the Galapagos, the level of activity of Sierra Negra remains high, characterized by fluctuating but important thermal anomalies; the seismicity consists of 168 volcano-tectonic earthquakes, 2 LP earthquakes and three tremor episodes for the day from 9 to 10 July / 11am.

The GOES 16 satellite locates a hot spot on the northern interior flank of the volcano.

Alert level remains orange

Source: IGEPN

Sierre Negra - thermal anomalies on July 10th / 7:45 pm - Doc.Mirova Modis

Sierre Negra - thermal anomalies on July 10th / 7:45 pm - Doc.Mirova Modis

The explosive activity of Fuego is reported up in the last report of Insivumeh. The explosions are accompanied by plumes rising to 5,000 meters asl., Then disperse to the south-west for about 12 km. Ash falls are reported on Morelia, Panimaché, Finca Palo Verde, Sangre de Cristo, and Chimaltenango.

Fuego - RSAM on 10.07.2018 - Insivumeh


This increase in activity could lead to a new eruptive phase; strong winds on the summit come to lift materials deposited on the south-east flank by the eruption of June 3rd.

Source: Insivumeh, Conred and Unidad de Prevención de Volcanes

Fuego - photo William Chigna, Unity of Prevención de Volcanes via Conred

Fuego - photo William Chigna, Unity of Prevención de Volcanes via Conred

Boris Behncke tells us that ash emissions are more vigorous at the crater northeast of Etna on July 10th.

The INGV can not be contacted this morning ... no news tremor or webcams.

Etna - ash emissions NE crater - Boris Behncke photos via Twitter
Etna - ash emissions NE crater - Boris Behncke photos via Twitter

Etna - ash emissions NE crater - Boris Behncke photos via Twitter

The Vanuatu Meteorology and Geohazards Department gave an update on Ambae's activity on 9 July.

The observations made in June show that the volcano is still unstable; on July 1, it emitted a plume of ashes with fallout on a sector northwest to west of Ambae, and a northeastern part of Santo.

The alert level remains at 2 / transition state between instability and eruption, with a danger zone of 2 km radius around the Voui Lake vents. A new map of the areas affected by the ashes, and possible lahars in case of rain, was established on July 10, 2018.

Source: Vanuatu Meteorology and Geohazards Department

Ambae - security card on 09.07.2018 - Doc. GMVD

Ambae - security card on 09.07.2018 - Doc. GMVD

Commenter cet article

Articles récents

Hébergé par Overblog