HR: 1330h
AN: V42B-0352    [PDF]
TI: Volcan de Fuego de Colima, review of the 2003 explosion activity and its morfological changes
AU: Juan Jose, R R
EM: ramirez@cgic.ucol.mx
AF: UNIVERSIDAD DE COLIMA, AVENIDA UNIVERSIDAD No. 333, COLIMA, COL 28045 Mexico
AB: Volcan de Fuego de Colima, Mexico, (19§30'44 '' N and 103§37'02 '' W) is an stratovolcano located in the western front of the Trans Mexican volcanic belt. It shows 3 explosive events at least during the last 500 years (VEI=4), being the nearest those happened in 1818 and 1913. In the year 2002, after a stage of dome growth and later collapses of incandescent material on the volcanic edifice, its activity suffered changes during the first months of the year 2003. The volcanic activity during this period is characterized by the occurrence of lava collapses concentrated at west and south-west flanks of the edifice. During this period, a lava emission rate of 0.15 m3/s is taking place. The material collapses occurred from the summit reaches an average 250 per day. After this behavior the lava movement decrease and obstruct the lava conduct changing the volcanic activity during this period to an explosive scenario. During the months of May, June, July and August of 2003 several explosive events have been presented, being the most significant those happened the days July 17th (05:27) August 2 (15:41) and August 28th (11:52). These three events in particular, have been those that bigger changes have caused in the morphology of the summit. A description of the eruptive development of this stage is presented in the one that the main explosions and their reaches can be identified.
DE: 8400 VOLCANOLOGY
SC: Volcanology, Geochemistry, Petrology [V]
MN: 2003 Fall Meeting