About RCEP

地震予知研究センターについて

About RCEP

地震予知研究センターは、地震発生とその予知に関する研究を総合的に推進するために、平成2(1990)年6月、防災研究所所属の3研究部門と5観測所および理学部所属の地震予知観測地域センターと3観測所を統合・再編成し、新たに防災研究所附属施設として設置された。

本研究センターは、固体地球科学を基礎とした多くの研究分野の緊密な協力によって、地震予知に関する基礎研究と技術開発を行うとともに、地震発生のメカニズムを解明し、最終的に地震予知手法を確立し、地震災害の軽減に資することを目的としている。

平成8(1996)年、防災研究所が全国共同利用研究所に改組されたことに伴い、本研究センターも9研究領域(内客員1)と8観測所により構成されることとなった。さらに、平成17(2005)年4月第1期中期計画を確実にかつ速やかに実施するための改組に伴い、2研究領域が地震防災研究部門へ移行され、7研究領域8観測所として現在に至っている。

センターの研究領域は大部門的に運営され、相互に有機的連携を保って研究が行われており、多くのプロジェクト的な研究や観測の実施に当たっては、随時研究領域の枠を越えて自由に研究チームを作り研究活動を行っている。また、共同利用的な運営を進め、地震防災部門をはじめ学内外の研究者との共同研究を推進し、地震防災関連の研究との緊密な連携をとっている。

今世紀半ばまでに、南海トラフ沿いのプレート間巨大地震の発生確率がピークに達するとされている。また、それに向けて西南日本内陸部における地震活動が活発化し、大きな被害地震も増えると予測される。これら「南海トラフ沿いの巨大地震の予知」および「内陸地震の予知」の研究を一層強力に推進すると共に、研究成果の社会への効果的な普及「Outreach」を当センターにおける研究の3本柱としている。

メンバー紹介はこちら

Studies on science based predictions of large earthquakes at plate boundaries and on shore faults on the basis of observational activities:

The Research Center for Earthquake Prediction (RCEP) carries out many aspects of seismic research related to earthquake sources, seismic velocity structures, distributions of earthquakes in Southwest Japan, and laboratory investigations.

These studies contribute to the long-term goals of earthquake prediction and mitigating earthquake damage.

The Center closely cooperates with the Earthquake Hazards Research Division on research projects and observational activities and is also involved in collaborative projects with other universities.

During the first half of this century, the probable occurrence of a great earthquake along the Nankai trough is reaching a peak; also large damaging earthquakes on onshore faults in southwest Japan appear to be occurring more frequently.

In this active seismic period, the Center focuses its efforts into three main areas:

  1. (1) Prediction of the earthquakes at plate boundaries, such as the future Nankai earthquake,
  2. (2) Studies of onshore earthquakes in southwest Japan,
  3. (3) Efforts to provide earthquake information to other disciplines and the public as well as education of students.

Our Members

各研究領域の研究内容

Research fields

海溝型地震研究領域(Subduction Zone Earthquakes)

南海地震等、海溝型巨大地震の予知研究を推進するため、地震観測、広域の測地観測、歪・傾斜観測等により、プレート境界の大地震震源域における歪蓄積過程のモデル化を進め、歪エネルギー評価手法の開発を目指す。

Subduction Zone Earthquakes

Modeling of the Generation Process of Subduction Zone Earthquake: In order to promote the research on forecast of subduction zone earthquakes which recur along the Nankai trough, studi-es of accumulation process of stress and strain in their source region using seismic and geodetic observations have been conducted. Besides, the estimation and modeling of detailed structure around the plate boundary by means of seismic ex-plorations have been done. The development of evaluation method of strain energy build-up process on the basis of the above results is our goal. Case studies on great earthquakes such as the Sumatra-Andaman earthquake are also made. The main themes of this division are as follows:

  1. 1) Study of crustal deformations along the Nankai trough with Synthetic Aperture Radar (SAR), GPS etc.,
  2. 2) Estimate of interplate coupling based on the results of crustal deformation observations,
  3. 3) Study of temporal variation in crustal deformations with extensometers and tiltmeters,
  4. 4) Study of seismic velocity structure around the northern edge of the Philippine Sea plate with seismic exploration,
  5. 5) Geodetic studies of great earthquakes in the world with SAR and GPS

内陸地震研究領域(Inland Earthquakes)

活断層とその周辺で発生する内陸地震の予知研究を推進するため、地震や地殻変動などを総合し、内陸地殻の変形と活断層への応力蓄積過程と地震発生過程の研究を進める。特に地震発生に及ぼす地殻内流動体の挙動を解明するため、地殻構造に加え地殻ダイナミクスの研究も推進する。

Inland Earthquakes

It is well known that seismic activities in the intraplate re-gion in southwest Japan become high before a great plate boundary thrust earthquake along the Nankai trough. In order to reduce disasters by these intraplate earthquakes, we con-duct researches to clarify the process by which intraplate earthquakes are generated, which is not well known at present, and to develop a new method of forecasting the occurrence of intraplate earthquakes. Major research topics are as follows.

  • * Stress accumulation process on intraplate earthquake faults resulting from heterogeneities in the lower crust
  • * Origin of the anomalous seismic activities and strain rates in the central Kinki district
  • * Dynamics and earthquake generation process in the Nii-gata-Kobe tectonic zone
  • * Anelastic deformation in the upper crust
  • * Development of a new method to infer precise locations of earthquake faults, and hypocenters and asperities of large earthquakes.

地殻活動研究領域(Crustal Activity Evaluation)

地震活動、地殻変動はじめ地殻・マントルに発現する諸現象とプレート境界地震や内陸地震の発生との関連性について究明し、さらにその成果に基づき地震発生予測手法の高精度化を図る。

Crustal Activity Evaluation

Crustal activity is associated with geophysical and geody-namical processes of the Earth. We are responsible to detect, analyze and interpret the crustal activity by integrating a vari-ety of instruments and methods (e.g., broadband seismome-ters, extensometers, tiltmeters and GPS), in particular, to un-derstand the mechanism of earthquakes and finally for earth-quake prediction. We also strive to develop new instruments and new methods to accurately detect and map crustal activity. One of important topics at present is to detect and map slow and silent events in crust and upper mantles, which can span from hours and/or days to months and/or years.

地震予知情報研究領域(Crustal Activity Information)

地震活動、地殻変動等などの地球科学的各種観測データの収集とデータベースの構築を行い、それらに基づき、地震予知情報の評価手法および効率的な利用方法の研究を推進する。また、地下構造調査、活断層調査など地震予知のための基礎的な調査を企画・推進する。

Crustal Activity Information

Database has been constructed for seismic activity, crustal movement, and other geophysical observations, with exchanging seismic data with other universities and national re-search agencies. Information for crustal activity and long-term earthquake prediction has been assessed based on the re-searches using this database; seismicity in southwest Japan, structural properties in the earthquake source area, space-time variation of earthquake generating properties. Basic surveys of tectonic structures and active faults have been planned and executed.

地球計測研究領域(Earth Observation Systems)

地震に伴う地学的現象を記録・解析するための、新しい観測手法や計測技術の開発研究を行い室内・野外での実験観測を通じて地震発生の準備過程の解明に資する。特に、野島断層などの活断層周辺でのボアホールを活用した実験観測に寄与する。

Earth Observation Systems

Development of observations and measurements in bore-holes: Developments of new experimental methods in the field and laboratory are being carried out. New methods applica-ble in boreholes near active faults, such as the Nojima fault, are being used to record and analysis various data, associated with earthquake occurrences, to clarify the preparation process of earthquakes. The recent themes of this division are as follows:

  1. 1) Broadband hydroseismograms (pore pressure) monitoring by closed borehole wells to see the change of rock stress due to barometric pressure, earth tide, free oscillation and seismic events.
  2. 2) Monitoring AE events using hydrophone in to the borehole at active fault zone.

リアルタイム総合観測研究領域(Integrated Real-time Systems)

地震の発生機構や地殻活動の推移予測に関する研究の高度化のために、特に進行中の地殻活動をその活動域で直接捉える地震・GPS・地球電磁気等の総合的な観測研究を行う。

Integrated Real-time Systems

Monitoring of seismic process and seismic activity with in-tegrated observations: In situ and real-time observations of current crustal phenomena using various geophysical methods are carried out at the specified local area. Observation instruments are deployed temporarily, but with density higher than that of permanent observation networks for precise analyses. The main research subjects are as follows:

  1. 1) Urgent observation for aftershocks of the large earthquakes
  2. 2) Crustal structure survey using the artificial seismic sources
  3. 3) The temporal observations with the dense seismic network in the specified local regions
  4. 4) The temporal and/or periodical observations on geodetic, gravitational and geoelecto-magnetical methods in the specified local regions

地球物性研究領域(客員)(Earth's Interior)

地殻・マントルを構成する物質の性質や挙動を調べ、地震発生場周辺の特徴を解明し、海溝沿いおよび内陸での地震発生にいたる準備過程の解明の高度化を計る。

Earth's Interior

Studies of characteristics of the crust and mantle: Studies on the mechanical and chemical characteristics of material in the crust and mantle are carried out to refine knowledge of the seismogenic environment. Also studies on the deformation and stress accumulation process at the sub-duction zone and the inland area. Risk evaluation on the super-great earthquake is also included.

地震予知研究センターへのアクセス

Access to RCEP

〒611-0011 京都府宇治市五ヶ庄 京都大学防災研究所附属 地震予知研究センター

E-mail:webinfo@rcep.dpri.kyoto-u.ac.jp

RCEP in DPRI Kyoto University, Gokasho Uji City Kyoto, JAPAN 611-0011

E-mail : webinfo@rcep.dpri.kyoto-u.ac.jp

連絡先(見学・取材・ご質問など)

※地震や防災に関する質問等は、防災研究所webサイト内の防災Q & Aもご参照ください。

Publicity Contact Information (Tour, Press, Questions)

* Please see FAQ in DPRI for questions about earthquake and disaster prevention.

連絡先(その他事務的なこと)

  • 事務室
  • TEL:0774(38)4193 または 4194   FAX:0774(38)4190

Contact (HQ)

  • Office
  • TEL : +81 (0) 774(38)4193 or 4194 / FAX : +81 (0) 774(38)4190

電車・学内バスのご案内

時刻表:JR(黄檗駅)京阪(黄檗駅)学内連絡バス