GPS observations of coseismic deformation following the 2016, August 24, Mw 6 Amatrice earthquake (central Italy): data, analysis and preliminary fault model

被引:13
作者
Cheloni, D. [1 ]
Serpelloni, E. [1 ]
Devoti, R. [1 ]
D'Agostino, N. [1 ]
Pietrantonio, G. [1 ]
Riguzzi, F. [1 ]
Anzidei, M. [1 ]
Avallone, A. [1 ]
Cavaliere, A. [2 ]
Cecere, G. [1 ]
D'Ambrosio, C. [1 ]
Esposito, A. [1 ]
Falco, L. [1 ]
Galvani, A. [1 ]
Selvaggi, G. [1 ]
Sepe, V [1 ]
Calcaterra, S. [3 ]
Giuliani, R. [4 ]
Mattone, M. [4 ]
Gambino, P. [3 ]
Abruzzese, L. [1 ]
Cardinale, V [1 ]
Castagnozzi, A. [1 ]
De Luca, G. [1 ]
Massucci, A. [1 ]
Memmolo, A. [1 ]
Migliari, F. [1 ]
Minichiello, F. [1 ]
Zarrilli, L. [1 ]
机构
[1] Ist Nazl Geofis & Vulcanol, Ctr Nazl Terremoti, Rome, Italy
[2] Ist Nazl Geofis & Vulcanol, Sez Bologna, Bologna, Italy
[3] ISPRA, Serv Geofis, Ist Super Protez & Ric Ambientale, Rome, Italy
[4] Ufficio Rischio Sism & Vulcan, Dipartimento Protez Civile, Rome, Italy
关键词
CENTRAL APENNINES; VELOCITY-FIELD; NETWORK;
D O I
10.4401/ag-7269
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
We used continuous Global Positioning System (GPS) measurements to infer the fault geometry and the amount of coseismic slip associated to the August 24, 2016 Mw 6 Amatrice earthquake. We realized a three-dimensional coseismic displacement field by combining different geodetic solutions generated by three independent analyses of the raw GPS observations. The coseismic deformation field described in this work aims at representing a "consensus" solution that minimizes the systematic biases potentially present in the individual geodetic solutions. Because of the limited number of stations available we modeled the measured coseismic displacements using a uniform slip model, deriving the geometry and kinematics of the causative fault, finding good agreement between our geodetically derived fault plane and other seismological and geological observations.
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页数:8
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