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Kobes Field

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Journal Article
Published: 01 December 2002
Bulletin of the Seismological Society of America (2002) 92 (8): 2994–3005.
... of the spatial energy distribution (McGarr and Fletcher, 2000 , 2001 ; Pulido and Irikura, 2000 ). We compare our estimated value to other studies. For the 1995 Kobe earthquake, there is an estimate of 8.5 × 10 14 J using broadband far-field body waves ( Boatwright and Choy, 1986 ). This is about 3 times...
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Journal Article
Published: 01 June 2002
Bulletin of the Seismological Society of America (2002) 92 (5): 1633–1646.
...A. McGarr; J. B. Fletcher Abstract Using published slip models for five major earthquakes, 1979 Imperial Valley, 1989 Loma Prieta, 1992 Landers, 1994 Northridge, and 1995 Kobe, we produce maps of apparent stress and radiated seismic energy over their fault surfaces. The slip models, obtained...
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Journal Article
Published: 01 May 2010
Earthquake Spectra (2010) 26 (2): 561–582.
... to distribute the unbalanced vertical forces due to brace buckling. Two ground motions representative of a far-field (Chile 1985) and a near-field earthquake (Kobe 1995) were selected for the tests. Two tests with two different amplitudes of the 1985 Chile earthquake were conducted on one frame; three tests...
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Journal Article
Journal: Geology
Published: 01 January 1999
Geology (1999) 27 (1): 15–18.
...Eric L. Geist; Mary Lou Zoback Abstract We examine possible sources of a small tsunami produced by the 1906 San Francisco earthquake, recorded at a single tide gauge station situated at the opening to San Francisco Bay. Coseismic vertical displacement fields were calculated using elastic...
Journal Article
Published: 28 May 2019
Bulletin of the Seismological Society of America (2019) 109 (4): 1331–1342.
...Lingmin Cao; Honn Kao; Kelin Wang; Chuanxu Chen; Jim Mori; Shiro Ohmi; Yuan Gao Abstract We investigate the spatiotemporal pattern of crustal anisotropy in the source area of the 2004 Niigata earthquake ( M 6.8) that occurred in the northern segment of the Niigata–Kobe tectonic zone, central Japan...
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(a) Post-liquefaction free-field settlement at Port Island after the 1995 Kobe earthquake (Akai et al, 1995) and (b) flooding of the inland street and buildings in Iskenderun after the 2023 Turkey earthquake (Moug et al., 2023).
Published: 01 May 2024
Figure 1. (a) Post-liquefaction free-field settlement at Port Island after the 1995 Kobe earthquake ( Akai et al, 1995 ) and (b) flooding of the inland street and buildings in Iskenderun after the 2023 Turkey earthquake ( Moug et al., 2023 ).
Journal Article
Published: 21 April 2015
Bulletin of the Seismological Society of America (2015) 105 (3): 1502–1516.
...Aiming Lin; Souichi Katayama; Gang Rao; Yasu’uchi Kubota Abstract The M w 5.8 Awajishima earthquake occurred on 13 April 2013 in southwest Awaji Island, ∼25 km southwest of the epicenter of the 1996 M w 6.8 Kobe earthquake, southwest Japan. Analyses of aerial photographs and 3D perspective images...
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Bayesian updating illustration for empirical collapse fragility at intensity IX for (a) unreinforced masonry construction using field survey data y′ = [0.0049, 0.01, 0.1096, 0.0214, 0.0132, 0.0122, 0.005, 0.0084, 0.0047, 0.00266] in the Nantau County after the 1999 Chi-Chi, Taiwan, earthquake (b) collapsed reinforced concrete building (both pre-and post 1981) data y′ = [0.045, 0.034, 0.04, 0.075, 0.118, 0.115, 0.226, 0.133, 0.222, 0.146, 0.0, 0.012, 0.015, 0.026, 0.012, 0.02, 0.019, 0.052, 0.0, 0.055] in Nada and Higashi-Nada wards of Kobe city at MM intensity IX, or JMA intensity VII after the 1995 Kobe, Japan, earthquake.
Published: 01 August 2011
Figure 7. Bayesian updating illustration for empirical collapse fragility at intensity IX for (a) unreinforced masonry construction using field survey data y ′ = [0.0049, 0.01, 0.1096, 0.0214, 0.0132, 0.0122, 0.005, 0.0084, 0.0047, 0.00266] in the Nantau County after the 1999 Chi-Chi, Taiwan
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Comparative drift spectra. The drift demands of stations DZC, IZT, and SKR represent the cities that suffered substantial damage during event 1. Station BOL contains the highest drift demand peak among the near-field records of events 1 and 2. The other curves display the near-field drift demand range of the Kobe and Northridge earthquakes for comparison.
Published: 01 February 2002
Figure 18. Comparative drift spectra. The drift demands of stations DZC, IZT, and SKR represent the cities that suffered substantial damage during event 1. Station BOL contains the highest drift demand peak among the near-field records of events 1 and 2. The other curves display the near-field
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Conceptual model of the difference in the variability of the shear strength before and after the Kobe earthquake. (a) Ideal synthetic self-affine profiles with a prescribed Hurst exponent of -0.2, analogous to the stress field of the Kobe earthquake (shown in Fig. 5) without smoothing inherent to the inversion procedure. The difference between the synthetic initial and final stresses shows a decrease of the roughness amplitude at all scales, preserving the relative importance between large and small scale fluctuations. Persistent spatial fluctuations at large scale are preserved. The stress-drop synthetic profile is also self-affine with an identical negative scaling exponent. At the right, the Fourier power spectra of each profile shows a similar pattern as observed for the Kobe earthquake stress maps (displayed in Fig. 5). (b) Same graph as in (a) except that the ideal synthetic self-affine profiles have been smoothed as observed on seismological slip inversions. Large scale fluctuations are not affected by the smoothing procedure. (c) Difference in the pre-factors of the respective Fourier spectra is directly related to slight variations in fault morphology caused by the rupture event. Two examples of synthetic rough profiles with a prescribed Hurst exponent of 0.8 (analogous to that sampled on natural fault surfaces). The color version of this figure is available only in the electronic edition.
Published: 01 October 2011
Figure 6. Conceptual model of the difference in the variability of the shear strength before and after the Kobe earthquake. (a) Ideal synthetic self-affine profiles with a prescribed Hurst exponent of -0.2, analogous to the stress field of the Kobe earthquake (shown in Fig.  5 ) without smoothing
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Published: 01 November 2015
Hachirogata Note (c) Yanagisawa et al. (1994) (f) No Superstition Hills 6.54 SS 24-Nov-1987 Wildlife I Holzer et al. (1989) (f) No Loma Prieta 6.93 RO 18-Oct-1989 Treasure Island B Darragh & Shakal (1991) (f) No Kobe 6.9 SS 17-Jan-1995 Amagasaki-G Note (c
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Published: 01 February 2013
Table 5 Earthquake event and PEER-NGA data for the far-field record set ( FEMA 2009 ) Earthquake Peak motion ∗ GM ID M Year Name Component 1 Component 2 PGA (g) PGV (cm/sec) Normalized factor 1 6.7 1994 Northridge NORTH/ MUL009 NORTH/ MUL279
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Dip-oriented cross-section through the Charlie Lake Formation, Kobes, Halfway, Blueberry and Inga petroleum fields. Note that member picks follow those presented in McAdam (1979). Location of section illustrated in Figure 4. The datum selected here is the base of the “A-marker limestone” (sensuHess, 1968) which represents a regional flooding surface (Hess, 1968; McAdam, 1979; Dixon, 2007).
Published: 01 June 2019
Figure 3. Dip-oriented cross-section through the Charlie Lake Formation, Kobes, Halfway, Blueberry and Inga petroleum fields. Note that member picks follow those presented in McAdam (1979) . Location of section illustrated in Figure 4 . The datum selected here is the base of the “A-marker
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Adapted SRTM image of the Western Province, South Africa, available from http://srtm.csi.cgiar.org. Field area at de Balie, towns and Pakhuis Pass are indicated by star symbols on the map. The Cedarberg Formation is outlined on the map as mapped by the Council for Geoscience. Insert in top right corner shows the upper stratigraphy of the Table Mountain Group. The Sneeukop-, Oskop-, Kobe- and Steenbras Members are of the Pakhuis Formation.
Published: 01 September 2009
Figure 1. Adapted SRTM image of the Western Province, South Africa, available from http://srtm.csi.cgiar.org . Field area at de Balie, towns and Pakhuis Pass are indicated by star symbols on the map. The Cedarberg Formation is outlined on the map as mapped by the Council for Geoscience
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Map views of synthetic self-affine stress-drop distributions calculated using the theoretical scaling relationships in equations(12) and (13). (a) Smooth synthetic stress-drop field similar to the inversion results of the Kobe earthquake. The inset corresponds to the map shown on Figure 10b. (b) Magnified portion of map (a) giving access to higher stress-drop concentrations at small scales. This illustrates the stress-drop distribution inferred for a small earthquake nucleating on the Nojima fault plane. The color version of this figure is available only in the electronic edition.
Published: 01 October 2011
Figure 10. Map views of synthetic self-affine stress-drop distributions calculated using the theoretical scaling relationships in equations (12) and (13) . (a) Smooth synthetic stress-drop field similar to the inversion results of the Kobe earthquake. The inset corresponds to the map shown
Journal Article
Published: 01 April 1998
Bulletin of the Seismological Society of America (1998) 88 (2): 400–412.
.... Irikura, and I. Yokoi (1996). Restoring clipped records of ken Nanbu earthquake, J. Natural Disast. Sci. 16, 49-58. near-field strong ground motion during the 1995 Hyogo-ken Nanbu (Kobe), Japan earthquake, J. Natural Disast. Sci. 18, 43-57. Boore, D. M. and J. Boatwright (1984). Average body-wave...
Journal Article
Published: 22 October 2024
Seismological Research Letters (2025) 96 (2A): 990–1000.
... March 2011, as the input for data assimilation, reconstructing the tsunami wavefield in the Kii Channel. Comparison with actual observations at Kobe showed that our approach can accurately forecast coastal tsunami waveforms at least 50 min prior to tsunami arrival. The normalized prediction error...
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Journal Article
Journal: Geology
Published: 23 May 2024
Geology (2024) 52 (9): 641–645.
... of the Kinderhookian–Osagean boundary excursion (KOBE), ~353 m.y. ago, reflects a period of global diagenesis using paired isotopic (δ 44/40 Ca and clumped isotopes) and trace-element geochemistry from three sections in the United States. There is little evidence for covariation between δ 44/40 Ca and δ 13 C during...
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Journal Article
Published: 01 February 1997
Bulletin of the Seismological Society of America (1997) 87 (1): 1–10.
... at major seismic risk, being far from all fault zones that had generated significant historic earthquakes in Japan. Although the fault geometry of the Kobe earthquake is consistent with failure under the regional stress field that dominates southwest Japan (Shiono, 1977; Wesnousky and Scholz, 1982...
Journal Article
Published: 01 August 2018
Earthquake Spectra (2018) 34 (3): 1113–1134.
... in the far-field. Motion 3, Joshua-H, was a more powerful repetition of the Joshua-L event, with a long duration and a slow rate of energy buildup typical of a backward directivity motion. Motion 4, Northridge, was a more intense forward directivity motion with a strong velocity pulse. Lastly, Motion 5, Kobe...
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