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Vyacheslav M. Zobin Juan José Ramírez Hydyn Santiago Eliseo Alatorre Carlos Navarro 《Bulletin of Volcanology》2011,73(1):91-99
Continuous tilt changes during the 2004–2005 effusive-explosive episodes at Volcán de Colima (México) were recorded simultaneously
by two tiltmeters installed on opposite sides of the volcano at elevations of 2200 m and 3060 m above sea level. Data indicate
that the 2004 lava extrusion was preceded by an inflation accompanied by a deflation. The 2005 explosion sequences were associated
with a deflationary–inflationary tilt. The period between the 2004 extrusion and the 2005 explosions was characterized by
an inflationary tilt during a 3 month period. Two deformation sources were located. The first was situated at a depth between
300 m and 1800 m beneath the crater at the northern flank of the volcano and was responsible for volcano deformation during
the preliminary September 2004 stage, the October 2004 extrusion, and the initial stage of the transition period and the March
2005 explosion sequence. The second source was located at a depth between 1800 m and 2800 m beneath the crater at the southern
flank of the volcano and was responsible for volcano deformation during the final stage of the transition period and the May–June
2005 explosion sequence. 相似文献
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