HR: 1400h
AN: G43B-11    [Abstracts]
TI: Volcan de Colima, Mexico: Deformation Monitoring system during the present activity phase 1997-2007
AU: * JUAN J, R
EM: ramirez@cgic.ucol.mx
AF: RAMIREZ-RUIZ JUAN J, GONZALO DE SANDOVAL No. 444 COL. UNIVERSIDAD, COLIMA, COL 28040, Mexico
AU: HYDYN, S J
EM: hydyn@cgic.ucol.mx
AU: ELISEO, A C
EM: eliseo@cgic.ucol.mx
AU: MAURICIO, B G
EM: mauri@cgic.ucol.mx
class='hr'> AB: The Volcan de Fuego de Colima (19°30'44"N y 103°37'02"W) is considered to be one of the most active and dangerous volcanoes in Mexico due to its frequent eruptions. It is important to rebound the eruptions of 1585, 1606, 1622, 1690, 1818, 1869, 1890, 1903 and 1913. Around the volcano edifice, a population of more than One Million persons are now living inside a radius of 50 km. The present activity 1997-2007 at Volcan de Fuego de Colima began in November 1997 with a series of seismic swarms and deformation of the summit lava dome. During this period of activity three lava extrusions are occurred: November 1998, May 2001 and September 2004. The deformations surveys at The Volcan de Colima began in 1997 with electronic distance measurements (EDM) carried out with three base stations and nine fixed reflectors located on the summit of the volcano edifice, detecting summit deformation of the extrusion phase of November 1998. In year 1999 began the installation of the electronic tiltmeter network, that send the deformation surveys in real time to the Volcano Observatory (www.ucol.mx/volcan). GPS surveys with a LEICA Double frequency system is carried out since 2006 to determine the variations of the volcano edifice. Here will be presented one analyses of the deformation parameter using different geodesic surveys at the Volcan de Colima.
UR: http:www.agu.org
DE: 8419 Volcano monitoring (7280)
SC: Geodesy [G]
MN: 2007 Joint Assembly