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陸域地下構造フロンティア研究・国際ワークショップのご案内

スケジュール

11月15日 18:00-20:00　土岐市民講演会（土岐セラトピア）

講演者：松田時彦，脇田宏

11月16日 9:15- ワークショップ（土岐セラトピア）

ポスター講演と懇親会（無料）はこの日の夕方

11月17日 9:10- ワークショップ（土岐セラトピア）

安芸先生の特別講演はこの日の夕方

プログラム

INTERNATIONAL WORKSHOP

Frontiers in Monitoring Science and Technology for Earthquake Environments

Tono Geoscience Center, 　JNC　in　JAPAN

Nov. 16 - 19, 1998

SCHEDULE OF THE WORKSHOP

16th (Mon.)-17th (Tues.)

INTERNATIONAL WORKSHOP at CERATOPIA-TOKI in Toki City

4 Takayama, Tokitsu-cho, Toki-city, Gifu 509-5121 TEL : +81-572-54-2120

FAX : +81-572-54-2204

Oral Session : The Meeting Room 'A'

Poster Session : The 'B' Hall

-----------------------------

PROGRAM OF THE WORKSHOP

November 16 (Mon.)

9:00- Admission into CERATOPIA-TOKI

9:15- 9:20 Opening Address Ando, M. (DPRI, Kyoto Univ.)

9:20- 9:40 Session F-1 Active Fault Probe: Progress report

F1 Ando, M. (DPRI, Kyoto Univ.)

Overview and purpose of the active fault prove at the Mozumi-Atotsugawa fault system

9:40-10:00 Session W-1 Earthquake/Groundwater Research: Progress report

W1 Wakita, H. (Gakushuin Women's College)

Introduction to geochemical, hydrological, and strain measurements

10:00-10:20 Session A-1 ACROSS: Progress report

A1 Kumazawa, M. (JNC)

A new light and new eye to look into the solid Earth and a potential monitoring methodology of geodynamic states -- Introduction to ACROSS

10:20-10:30 Coffee Break

10:30-11:50 Session F-2　Active Fault Probe: Fluid flow and geochemistry in fault zones

F2-1 Forster, C. and J. Cain (Univ. of Utah)

Modeling Fluid Flow in Fault Zones

F2-2 Evans, J. P. (Utah State Univ.)

Geochemical, Petrologic, and Physical Characterization of　Exhumed Faults in Crystalline Rocks, with Implications 　　　for Seismogenesis and Fluid Flow in the Crust

F2-3 Chester, F. M. (Texas A&M Univ.), D. L. Kirschner (Saint Louis　Univ.) and J. S. Chester (Texas A&M Univ.)

Structural and Geochemical Investigations of the Punchbowl　Fault, San Andreas System, California

F2-4 Satake, H. and M. Murata (Toyama Univ.)

Geochemistry of groundwater in and around the Mozumi- Sukenobu fault

11:50-13:00 Lunch Time

13:00-14:40 Session W-2 Earthquake/Groundwater Research: Geochemical and geophysical behaviors of groundwater, emitted gases and solid crust (under earthquake occurrences)

W2-1 Sato, M. (USGS, Reston, USA)

Earthquakes, Hydrogen Gas Emission, and Serpentinite -- Are There Links?

W2-2 Kawabe, I., T. Ito, K. Kawasaki, K. Nagamine, K. Yamamoto and M. Adachi (Nagoya Univ.)

Seismo-geochemical monitoring at a deep bore-hole well of Nagashima spa in Yoro-Ise Bay fault zone, central Japan

W2-3 King, C.-Y. (Univ. of Tokyo, JNC), S. Azuma (JNC), G. Igarashi, M. Ohno (Univ. of Tokyo), H. Saito (JNC) and H. Wakita (Univ. of Tokyo, Gakushuin Women's College)

Earthquake-Related Water-Level Changes at 16 Closely Clustered Wells in Tono, Central Japan

W2-4 Igarashi, G. (Univ. of Tokyo)

Temporal variations of tidal response of well water level 　 related to earthquakes

W2-5 Ishii, H. (ERI, Univ. of Tokyo) and T. Yamauchi (Nagoya Univ.)

Multi-component Borehole Instrument for Earthquake Prediction Study and It's Application for Rock Mechanics

W2-6 Aoki, H. (TRIES)

Seismotectonic setting around Atera fault, central Japan

14:40-15:00 Session W-P Poster Introductions (WP-1 - WP-5)

15:00-15:20 Coffee Break

15:20-16:00 Session F-P Poster Introductions (FP-1 - FP-9)

16:00-17:00 Session A-2 Poster Introductions (AP1-1 - AP4-3)

Session A-2-1 AC (acoustic or seismic) ACROSS

A2-1 Yamaoka, K (Nagoya Univ.)

General theory and overview of the AC ACROSS

Session A-2-2 EM (electromagnetic) ACROSS

A2-2 Kumazawa, M. (JNC)

Theoretical basis, development and prospect of EM ACROSS - An approach unifying low frequency MT and high frequency radar

Session A-2-3 Analysis method and other topics

A2-3 Kumazawa, M. (JNC)

Sompi cepstrum analysis method for general wave element　 deconvolution - Towards the real time color holography

17:10-19:00 Poster Session at the 'B' Hall (See titles below.)

Session W-P Earthquake/Groundwater Research: Posters Session F-P Active Fault Probe: Posters

Session A-P ACROSS: Posters

19:00-20:30 Buffet Party

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November 17 (Tue.)

9:00- Admission into CERATOPIA-TOKI

9:15-11:15

Session A-3 Russian sinusoidal vibrator approach

A3-1 Alekseev, A. S. (SB RAS)

Vibrational monitoring of the Earth (review of the results obtained in institutes of Siberian Branch of Russian Academy of Sciences)

A3-2 Alekseev, A.S., B. M. Glinsky and V. V. Kovalevsky (SB RAS)

Active seismology (means, methods, and results of development)

A3-3 Kovalevsky, V. V. , B. M. Glinsky and A. S. Alekseev (SB RAS)

The principle of hydroresonant generation of seismic waves and global tomography of the Earth

A3-4 Kovalevsky, V. V. (SB RAS)

Different constructions of vibrators

A3-5 Nikolaev, A. V. (RAS)

Seismic vibrator as a tool for monitoring of the Earth's crust

A3-6 Alekseev, A. S. (SB RAS) and A. V. Nikolaev (RAS)

Different principles of seismic waves generation by vibrators

Session A-4 Future perspectives and discussions

A4-1 Alexeev, A. S. (SB RAS)

Russian proposal of the international cooperation to Japanese partners

11:15-11:55 Session W-3 Approaches to Prediction

W3-1 Sornette, D. (UCLA)

Scientific prediction of catastrophes: A new approach applied to the predictability of mine rockbursts and earthquakes using improved time-to-failure analysis

W3-2 Perez, N. M., J. M. L. Salazar (ITER), G. Igarashi (Univ. of Tokyo), H. Wakita (Gakushuin Women's College), and S. Nakai (ERI, Univ. of Tokyo)

Precursory geochemical signatures of recent earthquakes in Galicia, Spain

11:55-13:00 Lunch Time

13:00-16:40

Session F-3 Active Fault Probe: Fault zone structure from seismic observation

F3-1 Li, Y. G. (Univ. of Southern California) and K. Aki (Observatoire Volcanologique du Piton de La Fournaise)

Fault zone trapped waves with applications to delineating 　　 the fine structure of active faults

F3-2 Michael, A. (USGS, Menlo Park) and Y. Ben-Zion (Univ. of Southern California)

Inverting fault zone trapped waves with genetic algorithms

F3-3 Spudich, P. (USGS, Menlo Park), K. B. Olsen, E. Jewel and R.Archuleta (U.C. Santa Barbara)

A 1-km wide low velocity zone in the Calaveras Fault, and its effect on strong ground motions

F3-4 Sato, H., H. Nakahara, T. Hayakawa, T. Nishimura and M. Ohtake (Tohoku Univ.)

Radiative transfer theory-based inversion for the high- frequency energy radiation from an earthquake fault

Session F-4 Active Fault Probe:

Stress state of fault zones and earthquake occurrence

F4-1 Serata, S. (Serata Geomechanics Inc.)

A New Approach for Quantitative Prediction of Major Earthquake Occurrence by High Accuracy Tectonic Shear Stress Monitoring

F4-2 Mendecki, A. J. and G. van Aswegen (ISS, South Africa)

System stiffness and seismic characteristics - A case study

F4-2 Mendecki, A. (ISS, South Africa) and S. Radu (ISS Pacific, Australia)

Preliminary results of continuous monitoring of seismic energy release close to nucleating or relaxing zones

F4-3 Hickman, S. (USGS, Menlo Park)

In-situ stress, frictional failure and fluid flow along the Stillwater fault zone, Dixie Valley, Nevada

F4-4 Blanpied, M. L., J. Gomberg, N. M. Beeler, B. D. Kilgore and J. H. Dieterich (USGS, Menlo Park)

How stress steps and transients affect earthquake timing: Theoretical and laboratory insights

F4-5 Toda, S. (CRIEPI), R. S. Stein and J. H. Dieterich (USGS, Menlo Park)

The influence of elastic stress transfer and state-dependent friction on earthquake occurrence

F4-6 Furumoto, M., Y. Ichimori, N. Hayashi (Kanazawa Univ.) and T. Sato (GSJ)

Secular and tidal components of P wave velocity change in the source area of the presumed Tokai earthquake

17:00-18:00 Special Talk

Aki, K. (Observatoire Volcanologique du Piton de La Fournaise)

Seismic monitoring and modeling of an active volcano for prediction

18:00-19:00 Discussion

19:00-19:05 Closing Address Kiyono, N. (JNC)

POSTER SESSION

Session W-P Earthquake/Groundwater Research: Posters

WP-1 Tanaka, T., H. Aoki (TRIES), R. Shichi (Nagoya Univ.), H. Saegusa (JNC) and T. Obuchi (KGE)

Gravity anomalies in the Toki-Mizunami area

WP-2 Asai, Y., H. Aoki, M. Okubo (TRIES) and S. Azuma (JNC)

Continuous observation of ground water level

WP-3 Azuma, S. (JNC) and the Earthquake/Groundwater Research Team

Monitoring groundwater behavior, emitted gases, and crustal activities (accompanying earthquakes) in and around the Tono Mine

WP-4 Sasaki, Y., S. Tasaka, D. Mutou (Gifu Univ.), A. Miwa (Nagoya Univ.), R. Suzuki (Gifu Univ.) and S. Azuma (JNC)

Observations of Ground Water Radon Concentration at the Tono Mine, Gifu Prefecture, Central Japan

WP-5 Tasaka, S., Y. Sasaki, M. Matsubara, D. Mutou and H. Takada (Gifu Univ.)

Continuous Monitoring of Underground Water at Atotsugawa Fault - Relation of Radon Concentration, Water Temperature and Water Flow Rate to Series of Earthquakes near the Nagano and Gifu boundary -

Session F-P Active Fault Probe: Posters

FP-1 Tanaka, H. (Ehime Univ.)

Creep motion of the Mozumi-Sukenobu fault deduced from the flow texture around brecciated clast in the fault rocks

FP-2 Ito, K., H. Wada (Kyoto Univ.) and K. Wada (MINDECO)

Seismic Activity near the Atotsugawa fault, central Japan

FP-3 Ito, H. (GSJ), K. Nishigami (Kyoto Univ.) and Y. Kuwahara (GSJ)

Array Observation of fault guided waves at the Mozumi and Atotsugawa Fault

FP-4 Jin, A. and M. Ando (Kyoto Univ.)

Simultaneous determination of site response and source 　 parameters of small earthquakes along Atotsukawa fault zone using GA inversion method

FP-5 Nishigami, K. (Kyoto Univ.)

Deep structure of the San Andreas, Calaveras and some other active faults in central California: An inversion analysis of coda envelopes from local earthquakes

FP-6 Hirahara, K. (Nagoya Univ.), M. Ando, Y. Hoso, Y. Wada and T. Nakano (Kyoto Univ.)

Dense GPS network for detecting the motion of Atotsugawa fault

FP-7 Sano, O.(Yamaguchi Univ.), T. Hirano (Nishimatsu Construction Co. Ltd.) and T. Yanagidani (Kyoto Univ.)

A plan for a continuous precise measurement of sound velocity near the Mozumi Fault

FP-８ Mizuta, Y. (Yamaguchi Univ.)

Stress distribution in the vicinity of right strike-slip fault

FP-9 Yanagidani, T. and F. Yamashita (Kyoto Univ.)

The Precise AC－Based Earth-Resistivity Measurement System Using Phase－Sensitive－Detection Technique Preliminary monitoring of ongoing stress-related process in the close vicinity of the Mozumi fault; I

FP-10 Yanagidani, T. (Kyoto Univ.), M. Teshima (Setsunan Univ.) and F. Yamashita (Kyoto Univ.)

AE Monitoring in the Site-Investigation Tunnel at the Mozumi Fault Preliminary monitoring of ongoing stress-related process in the close vicinity of the Mozumi fault; II

FP-11 Fujinawa, Y. (NIED) and Y. Honkura (Tokyo Inst. Technology)

Undestanding of Seismotectonics through a Window of Crustal Conductivity

Session A-P ACROSS: Posters

Session A-P-1 AC (acoustic or seismic) ACROSS

THEORY AND TECHNOLOGY OF SEISMIC SOURCE:

AP1-1 Takei, Y. (ERI, Univ. of Tokyo), K. Suzuki (Nagoya Univ.) and M. Kumazawa (JNC)

Basic theory of active seismic source -- Radiation mechanism, force type, efficiency, stability, controllability, mechanical constraints and so on

AP1-2 Kunitomo, T. (JNC), S. Inoue, S. Watanabe (Nagoya Univ.) and M. Kumazawa (JNC)

Micro-hertz control technology of frequency-modulated rotary type transmitter to radiate a set of plural sinusoids with a 20 tonf in amplitude

AP1-3 Tsuruga, K., T. Kunitomo and M. Kumazawa (JNC)

Characteristics of ground motion driven by a rotary-type ACROSS at the Tono test site

AP1-4 Moriguchi, K., K. Miyakawa, K. Yamaoka (Nagoya Univ.) and M. Kumazawa (JNC)

Linear motion-type seismic source utilizing electro- magnetic force -- Experiment on its versatile utility and performance

AP1-5 Hirai, M. (Osaka Univ.) and M. Kumazawa (JNC)

Linear motion-type seismic source utilizing two arrays of rotating magnets -- Theory of an ideal seismic source with the least energy loss without eigenfrequency

AP1-6 Ogawa, K. (Nagoya Univ.), M. Kumazawa (JNC), K. Suzuki (KGE), M. Nakatani (Lamont Doherty Earth Observatory), K. Ishihara (Tokyo Inst. of Poly.), K. Miyakawa, N. Ikeda, Y. Hasada (Nagoya Univ.), T. Kunitomo (JNC), N. Fujii and Yamaoka (Nagoya Univ.)

Portable type ACROSS technology for geophysical prospecting and the experiments in the geothermal area in Yamagawa -- Towards the technical development of handy tool for the field works on routine basis

DATA ACQUISITION SYSTEM:

AP1-7 Kunitomo, T. and M. Kumazawa (JNC)

A strong demand for the high fidelity seismomoters with stability and low cost --Results of the measurements of frequency characteristics

AP1-8 Nakano, M., K. Miyakawa, M. Nakatani(Nagoya Univ) and M. Kumazawa(JNC)

Simultaneous calibration of seismographs on ACROSS observation to obtain unbiased signal

FIELD OBSERVATION AND RESULTS:

AP1-9 Takei, Y. (ERI, Univ. of Tokyo), Y. Hasada, K. Yamaoka (Nagoya Univ.), S. Tsukada (JMA), K. Suzuki, M. Nakano, K. Miyakawa, N. Ikeda, S. Inoue (Nagoya Univ.) and M. Kumazawa (JNC)

The first successful experiment of seismic ACROSS in the Nagoya University campus

AP1-10 Yamaoka, K. (Nagoya Univ.) , T. Kunitomo (JNC), K. Ishihara (Tokyo Inst. of Poly.), Y. Hasada, K. Miyakawa, N. Ikeda, M. Yamada, M. Nakano (Nagoya Univ.) and M. Kumazawa (JNC)

The first successful experiment of remote synchronization of ACROSS system using GPS clock

AP1-11 Yamaoka, K., N. Ikeda, K. Miyagawa (Nagoya Univ.), T. Kunitomo and M. Kumazawa (JNC)

Array observation of ACROSS signals at Mizunami and 　　 Yamagawa and the result of data analysis

AP1-12 Miyakawa, K., K. Kobayashi, K. Yamaoka (Nagoya Univ.) and T. Kunitomo (JNC)

Temporal variation of phase in ACROSS signals for monitoring the underground states -- A trial of detecting the tidal strain

AP1-13 Kobayashi, K., K. Yamaoka, K. Miyakawa (Nagoya Univ.) and T. Kunitomo (JNC)

Monitoring of the temporal variation of the fault after 1995 Kobe earthquake with ACROSS system.

Session A-P-2 EM (electromagnetic) ACROSS

THEORETICAL BACKGROUND:

AP2-1 Kumazawa, M., T. Nakajima (JNC) and Y. Hasada (Nagoya Univ.)

Theoretical basis of EM ACROSS and its prospect -- General theory on the electromagnetic signal transmission in the Earth as a conductive dielectric medium

AP2-2 Kumazawa, M., T. Nakajima and K. Tsubota (JNC)

Effect of frequency-dependent electric properties of the rocks on the signal transmission -- Phenomenological evaluation of dielectric dispersion, physics behind it and the observables of the physical states within the Earth

THE STATE OF THE ART OF CURRENT TECHNOLOGY: AP2-3 Nishiyama, E. and K. Suzuki (KGE)

Underground structure prospecting by means of continuous wave radar -- Results of field measurements demonstrating the potentiality

AP2-4 Nakajima, T., M. Kumazawa, T. Kunitomo and K. Tsuruga (JNC)

Current approach and the preliminary results on the EM ACROSS utilizing the diffusional transmission of electromagnetic signals in the MT range -- DF (diffusion field) ACROSS with low frequency electromagnetic signals

Session A-P-3 Analysis method and other topics

THEORY OF DATA ANALYSIS:

AP3-1 Hasada, Y., A. Yoneda, T. Nomura and H. Kumagai (Nagoya Univ.)

ACROSS as a general measurement system of a linear system -- Example of material characterization for a mm scale sample in laboratory

AP3-2 Kumazawa, M. (JNC), Y. Hasada (Nagoya Univ.), T. Nakajima (JNC), K. Suzuki and E. Nishiyama (KGE)

Wave element deconvolution of radar data by means of Sompi cepstrum to analyze the travel time and physical dispersion of electromagnetic wave transmitted between the two bore holes

FORWARDS AND INVERSE PROBLEMS:

AP3-3 Hasada, Y. and H. Kumagai (Nagoya Univ.)

Numerical experiments of the complex Sompi cepstrum method using synthetic wave forms

AP3-4 Kumazawa, M. (JNC)

Demands for the basic study on the inversion of the physical states in addition to the geometric-structures inversion -- What do we need?