HR: 1330h
AN: U53A-07    [Abstracts]
TI: Does the Great Sumatrian Earthquake (Dic. 2004) Significantly Influence the Surrounding Volcanic Systems?
AU: Casarotti, E
EM: casarotti@ingv.it
AF: INGV - Roma 1, Via di Vigna Murata,605, Roma, 00143 Italy
AU: Selva, J
EM: selva@bo.ingv.it
AF: INGV - Bologna, Via Donato Creti 12, Bologna, 40128 Italy
AU: * Marzocchi, W
EM: marzocchi@bo.ingv.it
AF: INGV - Bologna, Via Donato Creti 12, Bologna, 40128 Italy
AB: The great Sumatrian earthquake (Dic. 2004) is the third earthquake ever recorded in term of energy released, and it occurred in a strongly active volcanic region. The strong stress perturbations due to this event give the opportunity to constrain our knowledge about the effects of those perturbations on the surrounding volcanic systems. Here, we propose a forward test to compare the spatio-temporal distribution of the eruptions which follow the earthquake, to the coseismic (static) and the postseismic (time dependent) stress field due to the earthquake. With this aim, we apply a standard procedure which account for the preceding distribution of eruptions in the area perturbed by the stress field, and which fixes the rules of the comparison with future data.
DE: 8120 Dynamics of lithosphere and mantle--general
DE: 8164 Stresses--crust and lithosphere
DE: 8414 Eruption mechanisms
DE: 8450 Planetary volcanism (5480)
DE: 8499 General or miscellaneous
SC: Union [U]
MN: 2005 Joint Assembly