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 : #volcanic activity
 Etna - summit craters 06.07.2019 / 10h UTC - photo J.Nasi / Butterfly helicopters

Etna - summit craters 06.07.2019 / 10h UTC - photo J.Nasi / Butterfly helicopters

The National Institute of Geophysics and Volcanology,  Etnéan Observatory, reports that at 10.33 UTC hours on 6 July, there is a sudden increase in the average amplitude of the volcanic tremor. INGV staff observed a Strombolian activity in the field at the new crater southeast of Etna, with products falling down the sides of the crater.

 

Source: INGV - Volcanic Activity Press Release 2019-07-06 10:43:05 (UTC)

Etna - tremor with the peak of 06.07.2019 - Doc. INGV / ECPN velocimeter - HRZ-RMS

Etna - tremor with the peak of 06.07.2019 - Doc. INGV / ECPN velocimeter - HRZ-RMS

After the paroxysm that hit Stromboli this week, all measuring stations affected by pyroclastic flows and fires are again operational, following the intervention of specialists in charge.

A Sentinel 2 image shows that much of the vegetation was burned or covered with ash, especially towards Ginostra; the lava flow, during cooling in the Sciara del Fuoco, is distinct.

 

Sources: LGS and Sentinel 2

Stromboli - explosion during the paroxysm of 03.07.2019 / 16:45 - Photo Osservatorio Stromboli

Stromboli - explosion during the paroxysm of 03.07.2019 / 16:45 - Photo Osservatorio Stromboli

Stromboli, the sismo-acoustic SCI station (Sciara) before and after its recovery - LGS photos 05.07.2019 - a click to enlargeStromboli, the sismo-acoustic SCI station (Sciara) before and after its recovery - LGS photos 05.07.2019 - a click to enlarge

Stromboli, the sismo-acoustic SCI station (Sciara) before and after its recovery - LGS photos 05.07.2019 - a click to enlarge

Stromboli - extension of burned or ash-covered areas, particularly in the direction of Giostra (left of the image) and cooling lava flow in the Sciara del Fuoco - Sentinel-2 image bands 11,8,2 agriculture / 07.07. 2019

Stromboli - extension of burned or ash-covered areas, particularly in the direction of Giostra (left of the image) and cooling lava flow in the Sciara del Fuoco - Sentinel-2 image bands 11,8,2 agriculture / 07.07. 2019

In the last 24 hours, 22 low-level exhalations have been reported at Popocatépetl, accompanied by low ash emissions.

In addition, three explosions occurred : two, of low intensity, were recorded at 4:14 and 7:58, producing columns of ash in small quantities and whose height does not exceed 1 km. The dispersion, in general terms, has been directed to the western sector; the activity continued with the emission of a plume of gas and steam.

At 23 h 27, a third, moderate explosion, projected incandescent fragments on the east flank of the volcano over a distance of about 1500 m. The column of ash generated reached a height of 1 km above the crater, moving later to the west.

Similarly, 70 minutes of low-level tremor were recorded.

The volcanic alert remains at amarillo fase 2.

 

Source : Cenapred 

Popocatépetl - 07.07.2018 / 8:48 - WebcamsdeMexico / Cenapred / Seguridad

Popocatépetl - 07.07.2018 / 8:48 - WebcamsdeMexico / Cenapred / Seguridad

Popocatépetl - 07.07.2019 / 23h27 - WebcamsdeMexico / Cenapred / Seguridad

Popocatépetl - 07.07.2019 / 23h27 - WebcamsdeMexico / Cenapred / Seguridad

The Copahue stations in Chile recorded a volcano-tectonic earthquake associated with rock fracturing of local magnitude 3.4 and a depth of 3.4 km on July 7 at 03:03 local time, followed by five aftershocks of lower magnitude.

Volcanic technical alert level remains in Amarillo.

 

Source: Sernageomin

Copahue - photo Valecaviahue 08.07.2019 / Twitter

Copahue - photo Valecaviahue 08.07.2019 / Twitter

In the Philippines, although the Taal warning remains at level 1 - non-imminent hazardous eruption - there is a growing number of volcanic earthquakes: 21 reported on 5 July, 13 on 6 July, 19 on 7 July, and 26 on 8 July.

The temperature measured in the eastern part of the main crater lake did not move, at 34 ° C; only small changes in pH and levels are noticed. The building still shows a slight inflation.

 

Source: Phivolcs

Commenter cet article

Articles récents

Hébergé par Overblog