Dramatic time lapse video (seen above) captured by local media showed the moment when the volcano, known locally as the Fire Volcano, erupted, sending a large plume of ash and gases into the air. Authorities from Jalisco state civil protection agency reported that some residues had reached the nearby communities of Huescalapa, Los Mazos, Atenquique and Vista Hermosa.
Bron: The weather network
en wat verdere achtergrond info
De Colima vulkaan in het Mexicaanse Comala spuwde donderdag opnieuw as uit. Ruim een week geleden was dat ook het geval. In Mexico staan ongeveer 3000 vulkanen. Daarvan zijn er ongeveer veertien actief.
In southern Mexico, the Colima volcano has been in a state of near-constant activity since 1994. It's not unusual for several explosions to occur in a single day, throwing plumes of ash 2 or 3 kilometers into the sky. On Oct. 28th, Spaceweather.com reader Thorsten Boeckel was on hand for one of those eruptions--a nighttime blast--and he photographed a violent display of volcanic lightning:
This mighty stroke illuminated the ash discharge, which rose up over the crater of the 3860m high Colima Volcano," he says. "Pure fascination!"
Researchers have long known that volcanic eruptions produce strong lightning. Findings published in a 2012 Eos article reveal that the largest volcanic storms can rival massive supercell thunderstorms in the American midwest. But why? Volcanic lightning is not well understood.
Lightning is nature's way of correcting an imbalance of electric charge. In ordinary thunderstorms, one part of a thundercloud becomes positively charged, and another part becomes negatively charged. This charge comes from collisions between particles. Droplets of water and crystals of ice rub together, creating static electricity in much the same way as woolen socks rubbed against carpet. Lightning arcs between charge-separated regions.
Something similar must be happening inside volcanic plumes. One hypothesis holdsthat catapulting magma bubbles or volcanic ash are themselves electrically charged, and by their motion create charge-separated areas. Another possibility is that particles of volcanic ash collide with each other and become charged throughtriboelectric rubbing. In short, no one knows. It is a beautiful (and terrifying) mystery
Bron:http://www.spaceweather.com/ | Gewijzigd: 31 januari 2017, 12:03 uur, door Joyce.s