Donnerstag, 16. September 2021

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CANARY ISLANDS- ISLAS CANARIAS- KANARISCHE INSELN


^background image by wikicommonsBerthold Werner/ TEIDE Volcano Caldera/ Teneriffe/Islas Canarias
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NEW ACTIVITY/ SEPTEMBER  2021 -


internal links > START HOME SOLAR BLOG VOLCANO WATCH VOLCANO MAPS external links > IGN AVCAN AVCAN/ fb. EMSC GVP NOAA







 


Activity report here will ony follow, if new events take place. For other environmental reports, please visit the solar and terrestrial blog on my homepage

update, 20210919

volcano eruption island of La Palma


as predictable the intensive microquake activity was today followed by a volcano eruption .

update 20210917

issue:

intensive unusual earthquake swarm ; 


VOLCANIC MAGMA INTRUSION
 Canary islands La Palma- Cumbre Vieja 
begin: Sept 11 2021 ongoing 

EVENT MAGNITUDE/ REGION AND TIME

LATITUDE/ LONGITUDE >

28.60 N ; 17.86 W

DEPTH > 6 km


Canary islands La Palma- Cumbre Vieja


intensive unusual earthquake swarm ; VOLCANIC MAGMA INTRUSION

 begin: Sept 11 2021 ongoing  6 km

other informations: external links/ Videos

    previous quakes /afterquakes more than: 100 strength M 2.0 - M 7.5 damages 

LATEST EARTHQUAKES/ USGS

LATEST EARTHQUAKES /ESMC

   
Vulkan-News 16.09.2116. September 2021 von 

Am Cumbre Vieja auf La Palma nahm die Bodenhebung deutlich zu. Die Aktivität am Fagradalsfjall fluktuiert. Der Semeru ist explosiv aktiv.

Cumbre Vieja: Inflation gestiegen

Staat: Spanien | Koordinaten: 28.57-17.84 | Eruption: Magmenintrusion

Am Vulkan auf La Palma ist die Inflation schnell gestiegen: die Bodenhebung beläuft sich nun auf bis zu 6 cm. Das geht aus einem Bericht vom IGN hervor. Gleichzeitig verlagerten sich die Beben in geringeren Tiefen und man geht davon aus, dass ein Magmatischer Gang bis in 8 km Tiefe vordrang. In den letzten 24 Stunden verringerte sich die Seismizität und es schaut so aus, als wäre der Magmenaufstieg (vorerst) gestoppt. Der Dyke steckt fest. Das heißt aber noch nicht, dass die Gefahr eines Vulkanausbruchs auf der Kanareninsel gestoppt ist. Für gewöhnlich folgen mehrere Phasen mit Inflation aufeinander, bevor es ein aufsteigender Magmenkörper schafft, bis zur Oberfläche durchzubrechen. Doch die Wahrscheinlichkeit, dass es bereits in den nächsten Tagen zu einer Eruption kommt, nimmt ab.

 

THE WORST CASE SCENARIO

however its time again to discuss the contraversial idea or theory, british geologists came up with whern examining the canaries geology first time within an european sponsorded project after spain had joined the eu.


right in the region where currently all these magmatic  microquakes occure there is a fault going over the surface around a bigger region of its  southern part indicating this huge part of the island could once brake of, slip into the sea and cause a deadly disastrous  tsunami that would hit main metropoles like new york amsterdam and london. prices for land on la palma dropped  immideately but the spanish geologists, those have of course a good knowledge about the canaries argued that fault just reaches some meters or kilometers below the surface while the main structure belo is stable .

 hot spots with their tyopical shield volcanoes do not produce explosive mixtures of water and minerals. their mantle magma rises up  driven by pressure from the earth mantle  and the related gravity pressure and not by gases such as in stratovolcanoes based within the earth crust. 
When the magma of  hot spot shield volcano systems has got enough pressure from below that it reaches the surface,  These volcanoes usually emit  a gasless and extrem hot and fluid material forminf usually unexplosive lava flows and  forming rather new land.

Thera SANTORIN THE WORST CASE SCENARIO

however, there is another danger coming with such a fault, if it does not reach deep down to r the islands basement. 
Water COULD GET INTO THESE OLD VOLCANIC CHANNELS : AND GET IN CONTACT WITH  NEW HOT MANTLE  MAGMA FROM BELOW that HAS MELTED FREE A PATH TOWARDS THE SURFACE : 

That could create the explosive gases necessary for an explosive volcanic eruption that of course could burst the hardest rock of the island.

here again the bbc report of 2008 make your own opinion: 


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update/ 20170827:


Its long time ago that I made any update here.

The first reason is, that due to the fact that we are going to get to the 11 years sun spot minimum in 2018/ 19 : flare activity has decreased and we had just one real proton event /(SPE ) in the last years and that was recently in June 2017.






               

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useful links/ nützliche Links:
EMSC
Global Volcanism Program
Facebook Seite der AVCAN
IGN (Spain) Serie El Hierro
Volcano-discovery.com
Earthquake- report. com
MEDIEN:
KARTEN:
SOLAR (SAT)
SOLAR (info)

REAL TIME FEATURES:
(click on the images to enlarge them)

letztes Beben(Kanarische Inseln ( IGN)



Bebenmap( El Hierro)


GPS deformation measure stations on El Hierro

MODVOLC/ Hawaii  thermal alerts:



^
near real time thermal alert
for El Hierro, la Palma, Teneriffe and la Gomera ( updated once per week)

volcano discovery. com : Earthquake within 30 km radius around El Hierro:


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previous posts those contain articles about the Canary volcanism in general: 


February 10- 16- 2014

 January 15- 19- 2014

January 20- 27- 2014




Mnt Teide ( Teneriffe)

related free online sources:


VOLCANOES:



Sources of the volcanic activity at El Hierro ( since 2011):


worldnews.com: Special environmental reports about the Canaries 

Miscanellous:
 Geschichte Teneriffas (deutsch)





 Fataga ( Gran Canaria)



 San Cristóbal de La Laguna in 1880 (Tenerife)




Caldera de Taburiente National Park (La Palma).




Garajonay (La Gomera)




   (BBC/ 20111204)Canary Island volcano: A new island in the making?

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