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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 : #volcanic activity

At Piton de La Fournaise, the intensity of the volcanic tremor (indicator of the intensity of the eruption) has been relatively stable over the past 48 hours. Note the presence of some fluctuations, certainly linked to a resonance effect within the volcanic cone which is closing laterally.

Piton de La Fournaise - Evolution of the RSAM (indicator of the volcanic tremor and the intensity of the eruption) between 02/10/2020 and 02/14/2020 1:00 p.m. local time (04:30 UT) on the DSO seismological station located at the top of the volcano. (© OVPF / IPGP).

Piton de La Fournaise - Evolution of the RSAM (indicator of the volcanic tremor and the intensity of the eruption) between 02/10/2020 and 02/14/2020 1:00 p.m. local time (04:30 UT) on the DSO seismological station located at the top of the volcano. (© OVPF / IPGP).

Three volcano-tectonic earthquakes were recorded today under the summit craters.

The lowest elevation flow front (1400 m) observed at the start of the eruption was no longer active on yesterday and the maximum extension of the flows now active was around 1900 m above sea level, below Marco crater. According to many observers, the lava emitted is particularly fluid.

The observations of this night from RN2 confirm that the front of the active flows has not progressed much since.

On February 14, the estimated surface flows, using satellite data via the HOTVOLC (OPGC - University of Auvergne) and MIROVA (University of Turin) platforms, were between 8 and 16 m³ / sec.

Piton de La Fournaise - Thermal imaging shot of the active lava field located below the eruptive site on 02/13/2020 at 1:00 p.m. local time (© OVPF / IPGP).

Piton de La Fournaise - Thermal imaging shot of the active lava field located below the eruptive site on 02/13/2020 at 1:00 p.m. local time (© OVPF / IPGP).

Piton de La Fournaise - 02.14.2020 / 3.30 p.m. UT - the eruption visible from the lava route - OVPF Cascades webcam

Piton de La Fournaise - 02.14.2020 / 3.30 p.m. UT - the eruption visible from the lava route - OVPF Cascades webcam

Piton de La Fournaise - Thermal anomalies on 02/14.2020 / 10.35 am - Doc.Mirova _MODIS_Latest10NTI

Piton de La Fournaise - Thermal anomalies on 02/14.2020 / 10.35 am - Doc.Mirova _MODIS_Latest10NTI

Piton de La Fournaise - 13.02.2020 - the little cuddly toys accompanied the team from the Piton de la Fournaise observatory - OVPF / Facebook photos - one click to enlargePiton de La Fournaise - 13.02.2020 - the little cuddly toys accompanied the team from the Piton de la Fournaise observatory - OVPF / Facebook photos - one click to enlarge

Piton de La Fournaise - 13.02.2020 - the little cuddly toys accompanied the team from the Piton de la Fournaise observatory - OVPF / Facebook photos - one click to enlarge

At La Fournaise, an eruption, ... but not only!

The P’tits Doudous de la Réunion, or Ti Doudous Peï, went as close as possible to the lava ...

Ti Doudous Peï, is a regional association resulting from a national association, made up of health professionals working in the operating room of the Reunion University Hospital.
The association works both to improve the experience of operated children and to recover waste from the operating room. The passage of children in the operating room is made fun by a specific game on tablet, which accompanies the child from the hospital department to the recovery room, also thanks to the customization of the anesthesia mask, the walls of the room and the distribution of cuddly toys ... and our volcanologists participated!

 

Source: OVPF

Find all the information relating to the activity of Piton de la Fournaise on the various media of the OVPF-IPGP:
- 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/)

Fuego - lava flow in the direction of Barranca Ceniza for 400 m. - Doc. Insiuvumeh

Fuego - lava flow in the direction of Barranca Ceniza for 400 m. - Doc. Insiuvumeh

In Fuego, eruptive activity is on the increase maintained, according to observations by the OVFGO. The glow, mainly at night and in the morning is reported, as well as a sustained degassing, causing sounds similar to those of a locomotive at an interval of duration of 40 minutes.

The active lava flow is 400 (700 meters) long in the direction of the Ceniza barranca, characterized by avalanches and vapor emissions at the level of the flow front.

Other lava flows could affect different barrancas, which have also been affected by avalanches in recent months.

 

Source: Insivumeh special bulletin of 14.02.2020 / 18h local on effusive activity

Fuego - thermal anomalies on 15.02.2020 / 04h25 - Doc.Mirova _MODIS_Latest10NTI

Fuego - thermal anomalies on 15.02.2020 / 04h25 - Doc.Mirova _MODIS_Latest10NTI

Santorini - Nea Kameni, seen from Thira - photo © Bernard Duyck 09.2019

Santorini - Nea Kameni, seen from Thira - photo © Bernard Duyck 09.2019

The General Secretariat for Civil Protection of Greece has published a new plan to deal with the consequences of a possible eruption of the volcano on the island of Santorini.

An official told the Greek news agency AMNA that "the study called Talio" was an "emergency intervention and management of the immediate / short-term impact of the event of volcanic activity at the volcanic complex of Santorini ".

He underlines the high level of preparation "taking into account the imminent danger of volcanic activity in the volcanic complex of Santorini, taking into account the designation of the level of alert fixed by the Standing Committee of surveillance of the Hellenic Observatory".

The Secretariat mentioned that there were no major concerns at the moment as there is no indication that the specific volcano will be activated anytime soon.

Nea Kameni - 1950 eruption


Numerous minor and medium-sized eruptions built the dark-colored lava shields of Nea and Palea Kameni inside the caldera, and the last eruption dates back to 1950.

The volcanic complex of Santorini includes two active volcanic sources, which are the volcanic source of Kameni located between Thira and Thirassia and the underwater volcanic source of Colombo, which is about 8.5 kilometers north-east of the homonymous Cape at the northeast end of the island of Thira.

 

Source: NAMA - Via Dr. Evi Nomikou - link

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