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34.8 36.5 139.0 141.0 2.5 34.5 37.0 138.5 141.5 3.0 20.0 50.0 120.0 160.0 6.0 P S P 2009 4 1 12 31 M2.0 M6.0 602 2 P 84,447 S 83,774 98,792 25,590 1.73 S 138 141 34 38 150km P S 50 422 3 MeSO-net Double-difference tomography 7) Kato et al. 8)9)10) Hagiwara et al. 11) Hagiwara et al. 11) a) MeSO-net 12)13)14) 4 MeSO-net X 20km Y 10km Z 50km 5km 607080100150km Hagiwara et al. 11) Vp/Vs 1.73 5 1,236 1.2 P 136,599 S 122,662 P 369,066 S 311,906 12
±5% 6 7 P 20 km 80 km P MeSO-net MeSO-net 1. 15) NIED 2. (1971/06-1980/09) 16)17) ERI 3. JMA NIED ERI M P S ZMAP ZMAP 18) M 3 13
19) 1 8 138.5-141.5 34.5-37.0 (a-c)nied ERI JMA M M M 2 24 20) 9 NIED (a-c)m 123 9(a) 15 17 M (b,c) 20) NIED 21) 9 ERI JMA 19) 3 M M M (M C ) M C 18) 10(a-c)NIED ERI JMA M C 19) M C (c)1980 M C =3.74.0 1990 M C =1.42.0 M C M C Nanjo et al. 21) M C M C 3 14
21 44 35 2 1 3 226 201 9 MeSO-net MeSO-net 44 1),,,, : 15
,, Vol. 84, No. 2, pp. 41-56, 2009. 2), :,, Vol. 84, No. 2, pp. 57-69, 2009. 3),,,,,,, : MeSO-net,, Vol. 84, No. 2, pp. 71-88, 2009. 4),,,,,,, : MeSO-net ACT protocol,, Vol. 84, No. 2, pp. 89-105, 2009. 5),,,, :,, Vol. 84, No. 2, pp. 107-114, 2009. 6), : MeSO-net,, Vol. 84, No. 2, pp. 127-139, 2009. 7) Zhang, H. and C. Thurber: Double-difference tomography: The method and its application to the Heyward fault, California, Bull. Seismol. Soc. Am., Vol. 93, pp. 1875-1889, 2003. 8) Kato, A., E. Kurashimo, T. Igarashi, S. Sakai, T. Iidaka, M. Shinohara, T. Kanazawa, T. Yamada, N. Hirata, and T. Iwasaki: Reactivation of ancient rift systems triggers devastating intraplate earthquakes, Geophys. Res. Lett., Vol. 36, L05301, doi:10.1029/2008gl036450, 2009. 9) Kato, A., S. Sakai, E. Kurashimo, T. Igarashi, T. Iidaka, N. Hirata, T. Iwasaki, T. Kanazawa, and Group for the aftershock observations of the 2007 Niigataken Chuetsu-oki Earthquake: Imaging heterogeneous velocity structures and complex aftershock distributions in the source region of the 2007 Niigataken Chuetsu-oki Earthquake by a dense seismic observation, Earth Planets Space, Vol. 60, pp. 1111-1116, 2008a. 10) Kato, A., S. Sakai, T. Iidaka, T. Iwasaki, E. Kurashimo, T. Igarashi, N. Hirata, T. Kanazawa, and Group for the aftershock observations of the 2007 Noto Hanto Earthquake: Three-dimensional velocity structure in the source region of the Noto Hanto Earthquake in 2007 imaged by a dense seismic observation, Earth Planets Space, Vol. 60, pp. 105-110, 2008b. 11) Hagiwara, H., T. Igarashi, N. Hirata, and S. Sakai, Velocity structure in the Kanto Region from dense array observation: A new configuration of the Philippine Sea plate, AGU 2006 Fall Meeting, 2006 12),,,,,,, D. Okaya, S. Harder, K. Miller,, :, 2003, S046-P010, 2003. 13),,,,,,,,,, :, 2004, S053-015, 2004. 14),,,,,,,,,,,,,,,,,,,,,,,,, 16
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, :,, Vol. 81, pp. 71-94, 2007. 15),, :, 208, pp. 1-57, 2000. 16) Matsu ura, R., Karakama, I. and Tsumura, K.: List of Earthquakes in the Kanto Area and its vicinity, Part 1, Earthquake Research Institute, 578 pp., 1988a. 17) Matsu ura, R., Karakama, I. and Tsumura, K.: List of Earthquakes in the Kanto Area and its vicinity, Part 2, Earthquake Research Institute, 562 pp., 1988b. 18) Wiemer, S.: A software package to analyze seismicity: ZMAP, Seism. Res. Lett., Vol. 72(3), pp. 373-382, 2001. 19),,,,, :,, Vol. 84, No. 2, pp. 141-148, 2009. 20) :,, 876 pp., 1999. 21) :,, Vol. 57, pp. 33-57, 1996. 22) Nanjo, K. Z., Schorlemmer, D., Woessner, J., Wiemer, S. and Giardini, D.: Earthquake detection capability of the Swiss Seismic Network, Geophys. J. Int., doi: 10.1111/j.1365-246X.2010.04593.x, 2010., Japan CSEP Testing Center CSEP-Japan: A rigorous test of earthquake forecasts based on seismicity data N. Hirata CSEP Meeting (Los Angeles, CA, USA) K. Z. Nanjo, H. Tsuruoka, N. Hirata, D. Schorlemmer, and F. Euchner International Symposium on Active Faulting: Forecasting Large Earthquakes from Active Faults in 20099 20101 17
Time and Space 2009 2009 10, 2009 2009 10 Proposal For New Testing K. Nanjo CSEP Meeting (Los 20099 Regions in Japan Angeles, CA, USA) New Data Streams for K. Nanjo CSEP Meeting (Los 20099 CSEP (GPS, Focal Angeles, CA, Mechanisms) USA) Toward constructing K. Z. Nanjo, H. Southern California 20099 earthquake forecast systems Tsuruoka, N. Earthquake Center for Japan Hirata, D. 2009 Annual Schorlemmer, Meeting (Palm and F. Euchner Springs, CA, USA) CSEP earthquake forecast K. Nanjo, H. International 20097 testing center for Japan: Tsuruoka, N. Symposium on Primary scope and recent Hirata, D. Earthquake progress Schorlemmer, Seismology and and F. Euchner Earthquake Predictability (Beijing, China) Seeds for the panel K. Z. Nanjo International 20095 discussion Symposium "Toward Constructing Earthquake Forecast Systems for Japan" (Tokyo, Japan) 18
Application of the RI model K. Z. Nanjo International 20095 to forecasting future large Symposium earthquakes in Japan "Toward Constructing Earthquake Forecast Systems for Japan" (Tokyo, Japan) Result of "Call for K. Z. Nanjo International 20095 earthquake forecast models, Symposium test regions & forecast "Toward evaluation methods" Constructing Earthquake Forecast Systems for Japan" (Tokyo, Japan) Initial report on the K. Nanjo, H. Japan Geoscience 20095 magnitude of complete Tsuruoka, N. Union Meeting reporting for Japan, using Hirata, and Y. 2009 (Chiba, Japan) the Gutenberg-Richter Ishigaki frequency-magnitude law Initial report on K. Z. Nanjo, H. The 6th 20094 completeness magnitude for Tsuruoka, N. International Japan: A GR-based Hirata, Y. Workshop on approach to the JMA Ishigaki, and D. Statistical catalog data Schorlemmer Seismology (Lake Tahoe, CA, USA) An Outline of the Special N. Hirata The 3rd SCEC-ERI 20103 Project for Earthquake joint workshop Disaster Mitigation in the Earthquake Tokyo Metropolitan Area - Hazards in Urban subproject I: Areas And Characterization of the Toward plate structure and source Constructing faults in and around the Forecast Systems of Tokyo Metropolitan area Earthquakes (Tokyo, Japan) 19
Japan CSEP Testing Center H. Tsuruoka The 3rd SCEC-ERI 20103 - Progress Report joint workshop Earthquake Hazards in Urban Areas And Toward Constructing Forecast Systems of Earthquakes (Tokyo, Japan) Completeness study for the K. Z. Nanjo The 3rd SCEC-ERI 20103 JMA catalog: A Baseline joint workshop for Rigorous Tests of Earthquake Earthquake Forecasts for Hazards in Urban Japan Areas And Toward Constructing Forecast Systems of Earthquakes (Tokyo, Japan) 20095 2009 20095 (MeSO-net: Metropolitan 2009 Seismic Observation network) (2) 20095 MeSO-net 2009 MeSO-net 20095 2009 20
20095 MeSO-net MeSO-net- MeSO-net Q Soil/Bedrock F. Mohammed Characterization, NEHRP Site Classes and Engineering Parameters Calculations in the Kanto Region, Central Japan 2009 20095 2009 20095 2009 20095 2009 20095 MeSO-net 2 2009 20095 21
MeSO-net 2009 ACT MeSO-net 20095 2009 20095 2009 MeSO-net 20095 2009 20095 MeSO-net 2009 20095 (MeSO-net) 2009 22
Imaging of Heterogeneous Nakagawa, S, American 2009 12 Structure beneath the Sakai, S, Geophysical Union, Metropolitan Tokyo Area Kurashimo, E, Fall Meeting 2009 Kato, A, (San Francisco, Hagiwara, H, CA, USA) Kasahara, K, Tanada, T, Obara, K, and Hirata, N Waveform through the Sakai, S, American 2009 12 subducted plate under the Kasahara, K, Geophysical Union, Tokyo region in Japan Nanjo, K, Fall Meeting 2009 observed by a ultra-dense Nakagawa, S, (San Francisco, seismic network Tsuruoka, H, CA, USA) (MeSO-net) and seismic Morita, Y, activity around mega-thrust Kato, A, Iidaka, earthquakes area T, Hirata, N, Tanada, T, Obara, K, Sekine, S, and Kurashimo, E Realtime source inversion Tsuruoka, H, American 2009 12 using W-phase and GRiD Rivera, L A, Geophysical Union, MT for regional tsunami Kawakatsu, H, Fall Meeting 2009 early warning and Kanamori, H (San Francisco, CA, USA) MeSO-net 2009 2009 10 WG 2009 2009 10 2009 2009 10 23
2009 8 11 2009 2009 10 2009 2009 10 MeSO-net 2009 2009 10 2009 2009 10 MeSO-net 2010 1 24
2010 1, 2010 1 2010 1 MeSO-net 2010 1 MeSO-net ACT protocol 2010 1 2010 1 MeSO-net 2010 1 MeSO-net 2010 1 25
2009 2009 - - Call for Papers: Special N. Hirata, T. H. Earth Planets and 2009 Issue of Earth, Planets and Space (EPS) Earthquake Forecast Testing Experiment for Japan Asperity and Barriers of the 2004 Mid-Niigata Prefecture Earthquake Revealed by Seismic Observations Reactivation of ancient rift Jordan, H. Space Tsuruoka, and K. Z. Nanjo Kato, A., T. Bull. Seism. Soc. 2010 Miyatake, and N. Am. Hirata 2 2009 Kato, A., E. Geophys. Res. Lett. 2009 systems triggers Kurashimo, T. devastating intraplate Igarashi, S. earthquakes Sakai, T. Iidaka, M. Shinohara, T. Kanazawa, T. Yamada, N. Hirata, and T. Iwasaki Anomalous Seismic Lee, C-P., N. Bull. Seism. Soc. 2009 Attenuation along the Plate Hirata, and B-S. Am. Collision Boundary in Huang Southeastern Taiwan: Observations from a Linear Seismic Array 2009 26
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