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
 Etna - Northeast crater on the 30.07.218 - photo Gio Giusa

Etna - Northeast crater on the 30.07.218 - photo Gio Giusa

Etna continues to present an activity at northeast and Bocca Nuova craters this July 30, 2018.

Its prolonged, powerful and very noisy gas emissions are accompanied by ejections of incandescent slags and bombs from a small mouth on the northeast crater floor. The bombs fall back into the enclosure of the crater.

Strombolian activity also continues at Bocca Nuova, which is strongly degassing.

Sources: Boris Behncke, Gio Giusa and EtnaWalk

Etna - summit craters degassing on 30.07.2018 - photo EtnaWalk

Etna - summit craters degassing on 30.07.2018 - photo EtnaWalk

In Fuego / Guatemala, heavy rain and thunderstorms generated lahars on 29 and 30 July in Taniluya, Ceniza, El Jute and Las Lajas barrancas.
 

Fuego - Seismic traces of the passage of lahars - Doc.Insivumeh

The lahars carry an abundant fine and pasty material, mixed with blocks of 2 to 3 meters in diameter, branches and trunks of trees; because of the presence of hot materials from the recent eruption, steam released, and a smell of sulfur; they generate, as they pass, vibrations recorded by the seismographs.

Due to the persistence of the rains, it is likely that lahars also affect the Seca barranca and the Rio Mineral , tributaries of the Rio Pantaleon.

Source: Insivumeh Special Bulletin 20.07.2018 / 21:25 local.

Sabancaya - summary table of the activity from 23 to 29 July 2018 - Doc. IG Peru / OVI / Ingemmet

Sabancaya - summary table of the activity from 23 to 29 July 2018 - Doc. IG Peru / OVI / Ingemmet

In Sabancaya / Peru, activity remained moderate during the week of 23-29 July.

It is characterized by explosions, at an average rate of 19 per day, and plumes of gas and ash rising to a maximum of 3,000 meters above the crater, and a dispersion over 40 km in a sector southeast and east.

Sulfur dioxide flow remains high, measured at 4,195 tonnes a day on July 26th.

The alert level remains orange.

Source: IG Peru / OVI / Ingemmet
 

In Kilauea, the situation is unchanged from previous days.

Sea entries are active on a 2 km wide front centered on the now-buried site of Ahalanui Beach Park. The south side of the stream did not show any progress and remains 175 meters from the Pohoiki boat ramp. The western edge of the melt is steaming and may be leaking lava

Sources: HVO-USGS, Bruce Omori and Mick Kalber

Kilauea East Rift Zone - 8th fissure flow and sea entrances map / 30.07.2018 12 pm - Doc. HVO-USGS

Kilauea East Rift Zone - 8th fissure flow and sea entrances map / 30.07.2018 12 pm - Doc. HVO-USGS

Commenter cet article

Articles récents

Hébergé par Overblog