Les volcans du monde

Mise à jour: 9 déc.. 2021 14:37 GMT -
Dans cette section vous trouverez des informations, des photos et d'autres ressources sur tous les volcans actifs du monde - tous les volcans connus qui ont eu d'activité dans les derniers 10,000 ans ou qui sont considerés comme potentialement actifs, plus beaucoup de volcans extints sont inclus.



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Blog articles

lun., 23 août 2021, 20:05
Artist's conception of the Minoan eruption of Santorini (Image: Cook and Abbott).
Famed for its link with the legend of the lost city of Atlantis and Poseidon – God of the sea – the Greek volcanic island of Santorini is now once again claiming its strong connection to the Aegean Sea that surrounds it. ... Read all
dim., 4 juil. 2021, 19:28
Volcanic lightning in an ash-rich plume during the 2010 Eyjafjallajökull eruption in Iceland (Image: Marco Fulle / Stromboli Online)
Explosive ash plumes often result in awe-inspiring displays of volcanic lightning. This occurs when silicate materials from rocks in a volcanic eruption break apart and they encounter each other in the middle of the turbulent eruption plume, or when ash particles rub together after being ejected. The ash particles exchange electrons, creating an imbalance in the positive and negative charges – to neutralise this imbalanced electrical field, a bolt of lightning zaps through the charged clusters, creating the spectacular volcanic lightning bolts we often observe during an explosive, ash-rich eruption. ... Read all
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