Number of the records: 1

Tensile earthquakes: Theory, modeling and inversion

SYSNO ASEP	0366069
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Tensile earthquakes: Theory, modeling and inversion
Author(s)	Vavryčuk, Václav (GFU-E)_{ORCID, RID}
Source Title	Journal of Geophysical Research - ISSN 0148-0227 Roč. 116, B12 (2011), B12320/1-B12320/14
Number of pages	14 s.
Language	eng - English
Country	US - United States
Keywords	earthquake ; focal mechanism ; moment tensor ; non-double-couple component
Subject RIV	DC - Siesmology, Volcanology, Earth Structure
R&D Projects	IAA300120801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GAP210/10/2063 GA ČR - Czech Science Foundation (CSF)
	LM2010008 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z30120515 - GFU-E (2005-2011)
UT WOS	000298787300006
DOI	10.1029/2011JB008770
Annotation	Tensile earthquakes are earthquakes which combine shear and tensile motions on a fault during the rupture process. The geometry of faulting is described by 4 angles: strike, dip, rake and slope. The strike, dip and rake define the orientation of the fault normal and the tangential component of the dislocation vector along the fault. The slope defines the deviation of the dislocation vector from the fault. The strike, dip and rake are determined ambiguously from moment tensors similarly as for shear sources. The slope is determined uniquely and has the same value for both complementary solutions. The moment tensors of tensile earthquakes are characterized by significant non-double-couple (non-DC) components comprising both the compensated linear vector dipole (CLVD) and the isotropic (ISO) components. In isotropic media, the CLVD and ISO percentages should have the same sign and should depend linearly for earthquakes that occurred in the same focal area. The direction of the linear function between the CLVD and ISO defines the velocity ratio vP/vS in the focal area.
Workplace	Geophysical Institute
Contact	Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028
Year of Publishing	2012

Number of the records: 1