2024-03-28T08:38:58Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/345572021-06-14T09:24:09Zcom_10261_87com_10261_8col_10261_340
A hybrid model for the summit region of Merapi Volcano, Java, Indonesia, derived from gravity changes and deformation measured between 2000 and 2002
Tiede, C.
Tiampo, Kristy F.
Fernández Torres, José
Gerstenecker, C.
Hybrid model
Merapi Volcano
Fault model
Elastic-gravitational model
Genetic algorithm
Three-dimensional displacements and gravity changes were measured at 20 points between 2000 and 2002 at Merapi volcano, Java, Indonesia. Former models focused on the modeling of a single magmatic source located in the summit region of the volcano. Such models do not fit to our measurements between 2000 and 2002. A new hybrid model approach is developed consisting of an elastic-gravitational source described by a mass and energy term as well as a combined dip-slip/strike-slip fault zone in the summit region. Both nonlinear optimization problems, given by the common inversion of three-dimensional displacements and gravity changes, are solved by applying a genetic algorithm. The hybrid model fits the measurements accurately, tested by Fisher test statistics. Furthermore, our model for Merapi volcano confirms previous structural models for this region so that the new model is statistically proven as well as physically reliable.
2011-04-13T08:05:12Z
2011-04-13T08:05:12Z
2007-04
artículo
Pure and Applied Geophysics, 164 (4) : 837-850 (2007).
0033-4553
http://hdl.handle.net/10261/34557
10.1007/s00024-007-0183-x
1420-9136]
eng
http://dx.doi.org/10.1007/s00024-007-0183-x
closedAccess
Springer
Birkhäuser Verlag