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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
Fuego - Hot top spot - image 29.09.2018 Landsat 8 bands 7,6,2 via Rüdiger Escobar Wolf

Fuego - Hot top spot - image 29.09.2018 Landsat 8 bands 7,6,2 via Rüdiger Escobar Wolf

The Fuego presents this September 29 in the evening an increase of its explosive activity; tremor and degassing pulses lasting up to 3-4 hours are accompanied by aircraft turbine sounds and block avalanches on the southwestern flank. Five to nine hourly explosions are accompanied by ash plumes at 4,400 - 4,700 meters.

In the evening, 10 to 15 hourly explosions are recorded, weak to moderate, and accompanied by ash plumes at 4,500 meters asl. moving 10 km to the west and southwest, and fallout of volcanic materials that generate small avalanches.

 


Ash falls are reported on San Pedro Yepocapa, Finca Palo Verde, Morelia, and Panimache.

The summit is marked by a constant incandescence during the night.

A possibility of lava flows and a new eruption is envisaged for the next hours.

Source: Insivumeh special bulletins 29.09.2018 to 10:30 and 21:15.

Pacaya - schematic structure of the volcanic massif - Doc.Guatemala tourisme

Pacaya - schematic structure of the volcanic massif - Doc.Guatemala tourisme

Also in Guatemala, the Pacaya continues its Strombolian activity, with occasional explosions 50 meters above the crater and lava flows, lengths between 300 and 700 meters, towards the Cerro Chino.

This activity is manifested in the framework of construction - destruction of the intracratal cone, formed in the Mackenney crater.

Source: Insivumeh special bulletin of 29.09.2018 / 22:30 local

Merapi - growth of the summit dome on 27.09.2018 - Doc.PVMBG

Merapi - growth of the summit dome on 27.09.2018 - Doc.PVMBG

The construction of the summit dome of the Merapi / Central Java continues: it reached this September 27 a volume of 129,000 m³, with a steady growth ratio in recent days to 1,000 m³ / day.

On 28 September, the PVMBG recorded 13 eruptive earthquakes, 14 blast events, one hybrid earthquake and five low frequency earthquakes.

The alert level remains at level 2 / Waspada, with a prohibited area of ​​3 km radius around the summit

Source: PVMBG

Piton de La Fournaise - 29.09.2018 / 17h09 - Camera OVPF Bert piton

Piton de La Fournaise - 29.09.2018 / 17h09 - Camera OVPF Bert piton

Piton de La Fournaise - thermal anomalies downing - Doc. Mirova MODIS 29.09.2018 / 10.30

Piton de La Fournaise - thermal anomalies downing - Doc. Mirova MODIS 29.09.2018 / 10.30

The eruption started on September 15 at 4:25 am local time at Piton de La Fournaise continues. The intensity of the volcanic tremor (indicator of eruptive intensity at the surface) has remained relatively stable over the last 24 hours

The surface flows estimated from the satellite data, via the HOTVOLC platform (OPGC - Clermont Auvergne University) ranged from 1 m3 / s to 2 m3 / s over the last 24 hours. Note that the eruptive activity now taking place mainly in lava tunnels, detection of anomalous hot spots are increasingly difficult and therefore these values ​​of underrated flows.

Source: OVPF

Find all the information related to the activity of Piton de la Fournaise on the website (http://www.ipgp.fr/fr/ovpf/actualites-ovpf), the Twitter account (https: // twitter. com / obsfournaise? lang = fr), and the facebook account (https://www.facebook.com/ObsVolcanoPitonFournaise/) of the OVPF-IPGP.

The information in this document may not be used without explicit reference.

Piton de La Fournaise - zoom in an image Sentinel 2 SWIR from 29.08.2018 - one click to enlarge

Piton de La Fournaise - zoom in an image Sentinel 2 SWIR from 29.08.2018 - one click to enlarge

A nice video of Krakatau activity on September 15th, where a small lava lake seems to have formed after the eruptive activity; lava flows when it overflows.

Lava Pool and Continuous Eruptions of Anak Krakatau - Yohannes Tyas Galih Jati, www javaecotravel com

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