Statical and dynamical study on faulting mechanism of the 1923 Kanto earthquake.

Matsu’ura, Mitsuhiro; Iwasaki, Takaya; Suzuki, Yasunori; Satô, Ryôsuke

doi:10.4294/jpe1952.28.119

Cited by 71 publications

(51 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3) that is approximately parallel to the upper surface of the PHS plate. One of the nodal planes of Reference mechanism A is in agreement with the upper surface geometry of the PHS plate in the eastern part of the Tanzawa region estimated in previous studies (e.g., Ishida, 1992;Sato et al, 2005) and the fault parameters of the 1923 Kanto earthquake (e.g., Matsu'ura et al, 1980). The rake angle of Reference mechanism A is consistent with the relative plate motion (Seno, 1993).…”

Section: Discussionsupporting

confidence: 75%

“…The focal mechanism is classified as 'other' type according to the definition of Frohlich (1992). The strike and dip angle of one of the nodal planes for Reference mechanism A are consistent with the geometry of the PHS plate in the eastern part of the Tanzawa region (e.g., Ishida, 1992;Sato et al, 2005) and the fault parameters of the 1923 Kanto Earthquake (Matsu'ura et al, 1980;Kobayashi and Koketsu, 2005). The rake angle of Reference mechanism A is also consistent with the relative motion of the PHS plate with respect to the Eurasian plate in the Kanto region (Seno, 1993).…”

Section: Detailed Spatial Distribution Of Focal Mechanismsmentioning

confidence: 99%

See 1 more Smart Citation

Seismotectonics in the Tanzawa Mountains area in the Izu-Honshu collision zone of central Japan, as revealed by precisely determined hypocenters and focal mechanisms

et al. 2012

View full text Add to dashboard Cite

We investigate the detailed distribution of hypocenters and focal mechanisms beneath the Tanzawa Mountains, central Japan, where the Izu-Bonin arc has collided into the central part of the Honshu arc. Remarkable differences are found to exist between the hypocenter distributions in the western and eastern parts. The hypocenters of earthquakes in the eastern part tend to be distributed in a horizontal zone, whereas those in the western part are distributed in a volume. The focal mechanisms in the eastern part are right-lateral reverse faulting mechanisms, and one of the nodal planes is consistent with the geometry of the Philippine Sea (PHS) plate in the region. These results suggest that most earthquakes in the eastern part occur along the upper surface of the subducting PHS plate. In contrast, the focal mechanisms in the western part, especially deep in the western part, exhibit a different feature. The stress states in these two regions are found to be significantly different. The maximum and minimum principal stress axes in the eastern part are slightly inclined, whereas those in the western part are oriented in approximately the vertical and horizontal directions, respectively. The stress field in the eastern part may be caused by a slab pull force induced from the deeper part of the subducted plate.

show abstract

Section: Discussionsupporting

confidence: 75%

Section: Detailed Spatial Distribution Of Focal Mechanismsmentioning

confidence: 99%

Seismotectonics in the Tanzawa Mountains area in the Izu-Honshu collision zone of central Japan, as revealed by precisely determined hypocenters and focal mechanisms

et al. 2012

View full text Add to dashboard Cite

show abstract

“…4(a)). Obviously, these coseismic crustal deformation can never be explained by various fault mod- (Ishibashi, 1988a els so far proposed by Ando (1971), Matsu'ura et al (1980), Wald and Somerville (1995) and many others. Such a subfaulting is also in harmony with the violent ground shaking on the northwestern coast of Sagami Bay including Hatsushima Island (Ishibashi, 1985).…”

Section: Sub-faulting During the 1923 Kanto Earthquakementioning

confidence: 99%

Seismotectonic modeling of the repeating M 7-class disastrous Odawara earthquake in the Izu collision zone, central Japan

Ishibashi

2014

Earth Planet Sp

View full text Add to dashboard Cite

“…The Kanto earthquake (M=7.9) occurred in the southern part of the Kanto district, on Sept. 1, 1923. For this earthquake, a dislocation source model , which adequately explains both the seismic and the geodetic data, has been proposed by MATSU'URA et al (1980), on the basis of an inversion analysis of the coseismic displacement data. In this study, the Kanto earthquake is modelled by a set of two elementary faults, F-1 and F-2, the parameters of which are listed in Table 1.…”

Section: Displacementsmentioning

confidence: 99%

Quasi-Static Deformations Due to an Inclined, Rectangular Fault in a Viscoelastic Half-Space

Matsu’ura

Tanimoto

1980

J,Phys,Earth

Self Cite

View full text Add to dashboard Cite

Analytical expressions of the quasi-static, surface deformations (displacement, strain and tilt) due to an inclined, rectangular fault in a viscoelastic halfspace are obtained by applying a "correspondence principle" to the solutions of the associated elastic problem. The medium is assumed to be elastic dilatational and Maxwell deviatric, and the time dependence of a dislocation source is taken to be of a step function type.From the analytical expressions, it is directly found that the viscoelastic part of the deformation field vanishes exactly for both an arbitrary slip on a horizontal fault plane and a dip-slip faulting on a vertical plane. In other cases, the viscothe viscosity of the medium.Patterns of the elastic and the viscoelastic parts of the deformation field are respectively shown for two representative fault models.As an example, postseismic vertical displacements associated with the Kanto earthquake of 1923 are computed by the fault model determined from the coseismic geodetic data, and compared with the observed crustal movements for the period of 1931-1950.

show abstract

Statical and dynamical study on faulting mechanism of the 1923 Kanto earthquake.

Cited by 71 publications

References 13 publications

Seismotectonics in the Tanzawa Mountains area in the Izu-Honshu collision zone of central Japan, as revealed by precisely determined hypocenters and focal mechanisms

Seismotectonics in the Tanzawa Mountains area in the Izu-Honshu collision zone of central Japan, as revealed by precisely determined hypocenters and focal mechanisms

Seismotectonic modeling of the repeating M 7-class disastrous Odawara earthquake in the Izu collision zone, central Japan

Quasi-Static Deformations Due to an Inclined, Rectangular Fault in a Viscoelastic Half-Space

Contact Info

Product

Resources

About