Toutes les actualités et mises à jour sur les volcans:
Colima Volcano showed an increase in seismic activity during the last days and several explosions occurred during the past days. According to the Washington VAAC, an explosion on 20 April produced an ash plume to a height of ~6.1 km (~20,000 ft) a.s.l. The activity sparked forest fires on the southeastern slopes of the volcano, but no danger was posed to neighbouring communities.
Since February the subterminal south east crater has undergone to several rock slidings of its inner walls and a large collapse pit has formed on the E side of the cone.
Karthala volcano, a shield volcano on Grande Comore, the largest of the Comoros Islands, 300 km off the east coast of Africa, began to erupt on April 17th.
The eruption began with increased seismic activity, and emission of steam and increasing amounts of ash that are causing severe breathing problems in the area immediately near the volcano. From an airplane observation it is apparent that a small lava lake is accumulating inside the crater, giving concern to the possibility of a sudden outbreak.
After an increased seismic activity, a small volcanic eruption was observed at Mt. Aso volcano, Japan, in the Kumamoto Prefecture, about 900 km southwest of Tokyo. According to the Fukuoka District Meteorological Observatory, tiny amounts of gray-white volcanic ash fell near the No. 1 crater of the 1,506-meter volcano around 10 a.m. on 14 April, 2005....plus [lire toutes]
Krakatoa volcano in the Sunda Strait between the islands of Java and Sumatra is showing an increased seismic activity as the Indonesian Volcanological Survey reports. Whether eruptive activity is already taking place, is not known at the moment due to bad obvservation conditions, but it is likely that there is or will be activity in the very near future.
Tangkuban Parahu, a volcano in west Java very near the regional capital Bandung (2 million inhabitants) might be coming back to life very soon. The Volcanological Survey of Indonesia has raised the alert level and reports strongly increased seismicity, and strong emission of sulphuric gasses since today. Access to the volcano is fobidden.
Le volcan Talang en Indonésie est entré en éruption le 12 avril 2005, produisant des nuages de cendres d'environ 1 km d'altitude (3.000 m). Le volcan Talang est situé à Sumatra, à seulement 40 km à l'est de la capitale côtière de la province de Sumatra Ouest, Padang. Il est à proximité des zones touchées par les récents tremblements de terre importants, mais il est dangereux de dire qu'il existe un lien direct entre ces événements, car il n'est pas connue. Bien que quelques rapports ne peuvent être exclus, les volcans et les tremblements de terre ont des dynamiques très différentes.
Pour des raisons de sécurité et en raison de la possibilité d'une intensification de l'éruption dans un avenir proche, les autorités ont promis l'évacuation d'environ 25.000 personnes vivant dans les zones immédiatement à proximité du volcan.
3 May, 2005:
Canlaon continues to produce mild steam and ash clouds, which rise up to around 5-700 m above the active crater and sometimes causing problems with local air traffic and shutdown of nearby airports.
Colima volcano remains at moderate levels of activity. A few explosiones continue to occurr per day, producing minor amounts of ash that do not pose risk to settlements around the volcano, but larger events could occurr at any time.
Source: Colima Volcano Observatory