The Next Generation of Research on Earthquake-induced Landslides :

1. Background: Earthquake shaking commonly triggers landslides, which can cause significant damage and loss of life. Recent events, like the MW 7.9 Wenchuan, China earthquake of May 2008, show that the death toll and destruction from seismically-induced landslides can be extremely high. Ten years ago, during the Chi-Chi earthquake, 25,000 landslides were triggered in central Taiwan. The heavy rainfall brought by the subsequent typhoons caused further landsliding and serious damage. For example, after the 1999 Chi-Chi earthquake, the total area of shallow landslides in the Chenyulan River watershed increased by 20 times, and the amount of suspended sediment in the Chenyulan River watershed is still as much as four times higher than background values before the Chi-Chi earthquake. Thus, study of the triggering of landslides by earthquakes is a significant component in hazard reduction in seismic areas. The purpose of this conference is to provide a worldwide forum for discussion on the next generation of research on earthquake-induced landslides. • models, statistical analyses, and GIS techniques to regional-scale slope instability zonationunder dynamic conditions; statistical approach to model spatial and temporal variability of earthquake induced landslides) • Mechanisms of seismically induced landslides and other permanent deformations in slopes (physical and numerical modeling; shaking table modeling of seismically induced deformations in slopes; nonlinear seismic sliding analysis of earth structures; evaluation of different models to estimate co-seismic landslide displacements and to assess regional seismic slope performance) • Seismic site response (topographic and litho- stratigraphic factors of ground motion amplification with examples from instrumented sites; ground motion directivity and slope dynamic response; site response analysis using modeling and numerical simulations; empirical geotechnical seismic site response procedures) • Uncertainty in ground motion estimates and seismic slope stability analyses (simplified methods for evaluating seismic stability of steep slopes; evaluation of seismic slope stability procedures through shaking table testing; seismic landslide hazard assessment in connection with site-specific ground-motion dynamics) • Impact of earthquakes on mountain slope evolution and sediment yields (including enhanced landslide generation by precipitation events following earthquakes) • Next generation of research on earthquake-induced landslides (plenary discussion) The Next Generation of Research on Earthquake-induced Landslides: An International Conference in Commemoration of the 10th Anniversary of the Chi-Chi Earthquake September 21~26, 2009 (Conference 09/21-24, Field trip 09/25-26), National Central University, Taiwan Sponsors: European Geosciences Union Chinese Geoscience Union National Science Council, Taiwan National Central University, Taiwan Co-sponsors: National Research Council (CNR-IRPI), Italy Italian Section of International Association for Engineering Geology and the Environment (IAEG) Geological Society located in Taipei National Cheng Kung University, Taiwan National Chiao Tung University, Taiwan National Chung Hsing University, Taiwan National Taiwan University, Taiwan Central Geological Survey, Taiwan Soil and Water Conservation Bureau, Taiwan Water Resources Agency, Taiwan Area of Coverage: Post-earthquake inventories of landslides and related ground failures (remote sensing, field observations, and statistical analysis) Earthquake-induced landsliding and ground failures in different tectonic/climatic environments (case histories) Regional-scale seismic landslide hazard assessment (applications of physically-based

2. EVANS, Stephen, University of Waterloo, Canada • GUGLIELMI, Yves, University of Provence, France • HARP, Edwin, U.S. Geological Survey, USA • HOVIUS, Niels, Cambridge University, UK • JIBSON, Randall, U.S. Geological Survey, USA • KAYEN, Robert, U.S. Geological Survey, USA • KEEFER, David, U.S.G.S. and Univ. Maine, USA • KOKUSHO, Takaji, Chuo University, Japan • MILES, Scott, Western Washington University, USA • MURPHY, William, University of Leeds, UK • PETLEY, David, Durham University, UK • RODRIGUEZ-MAREK, Adrian, WA State Univ., USA • ROMEO, Roberto, University of Urbino, Italy • TSAI, Yi-Ben, PG&E, USA • WARTMAN, Joseph, Drexel University, USA • WASOWSKI, Janusz, CNR-IRPI, Italy • Advisory Board: • Chairman: KEEFER, David (USA) • CHAO, Benjamin Fong (Taiwan) • CHEN, Cheng-Hong (Taiwan) • CHEN, Shen-Hsien (Taiwan) • CHERN, Jin-Ching (Taiwan) • CHIANG, Wei-Ling (Taiwan) • CHIN, Chung-Tien (Taiwan) • CHIGIRA, Masahiro (Japan) • HUNG, Ju-Jiang (Taiwan) • KOKUSHO, Takaji (Japan) • LI, Chien-Chung (Taiwan) • LIN, Chao-Chung (Taiwan) • LO, Ching-Hua (Taiwan) • SASSA, Kyoji (Japan) • SHIEH, Cheng-Lun (Taiwan) • SORRISO VALVO, Marino (Italy) • WU, Huei-Long (Taiwan) • Scientific Committee: • Chairman: WASOWSKI, Janusz (Italy) • CHU, Hao-Tsu (Taiwan) • DEL GAUDIO, Vincenzo (Italy) • KEEFER, David (USA) • LEE, Chyi-Tyi (Taiwan) • LIN, Ching-Weei (Taiwan) • LIN, Meei-Ling (Taiwan) • LIN, Ming-Lang (Taiwan) Local Organizing Committee: Chairman: LEE, Chyi-Tyi (Taiwan) CHANG, Chung-Pai (Taiwan) CHEN, Hongey (Taiwan) CHEN, Hung-Kuai (Taiwan) CHEN, Su-Chin (Taiwan) CHI, Shu-Yung (Taiwan) CHOU, Kung-Tai (Taiwan) FEI, Li-Yuan (Taiwan) HOU, Ping-Cheng (Taiwan) HUANG, Chien-Chung (Taiwan) JAN, Chyan-Deng (Taiwan) LIAO, Jyh-Jong (Taiwan) LIN, Ching-Weei (Taiwan) LIN, Jiun-Chuan (Taiwan) LIN, Meei-Ling (Taiwan) LIN, Ming-Lang (Taiwan) LIN, Yu-Yi (Taiwan) LIU, Chia-Nan (Taiwan) PAN, Kuo-Liang (Taiwan) SHOU, Keh-Jian (Taiwan) TIEN, Yong-Ming (Taiwan) Secretary General: DONG, Jia-Jyun (Taiwan) Important Date: Extended Abstract (or full paper) due: July 1st, 2009. (On-line submission) Registration: Technical Sessions: 10,000 NTD (~300 USD). Field Trips: 6000NTD (~180USD). (On-line registration) Correspondence: Associate Prof. DONG, Jia-Jyun, Graduate Institute of Applied Geology, National Central University, Jungli, Taoyuan, 32001, Taiwan. E-MAIL: jjdong@geo.ncu.edu.tw Conference Website: http://landslide.appgeo.net Hotel: South Garden Hotels and Resorts, Taoyuan. http://www.southgarden.com.tw/ Conference Program: Posters: All day. • Field Trip: The Tsaoling landslide (volume of 120 million cubic meters) and Chiufengerhshan landslide (volume of 50 million cubic meters), triggered by the Chi-Chi earthquake, are among the best studied large earthquake-induced landslides in the world. The field trip will tour these two large landslides and the 921 Earthquake Museum located in Wufong. • Official Language:The official language of the conference is English. • Invited Speakers: • ABRAHAMSON, Norman, PG&E, USA • CHIOU, Brian S.J., Caltrans, USA • CLUFF, Lloyd, PG&E, USA • DEL GAUDIO, Vincenzo, University of Bari, Italy