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Wenchuan, China Earthquake: EERI and GEER Collaborate to Send Team to China to Bring Back Lessons |
The May 12, 2008 earthquake in China , known as the Sichuan or Wenchuan Earthquake, caused significant damage and many casualties. Since its occurrence, EERI, as well as the United States Geological Survey and other NEHRP agencies, have been exploring with Chinese authorities the possibilities for first hand field reconnaissance or collaborative research. Starting August 4, a team of earthquake researchers, sponsored by the Earthquake Engineering Research Institute (EERI) and the Geo-Engineering Earthquake Reconnaissance (GEER) Association, will join Chinese colleagues in investigating and documenting scientific and engineering effects of the devastating earthquake (magnitude 7.9) that occurred in Wenchuan County. The research team, under the leadership of Marshall Lew of MACTEC Engineering and Consulting in Los Angeles, California, includes experts in structural, lifelines, and geotechnical engineering as well as disaster response and recovery.| The EERI/GEER team members have completed their investigations and have all returned safely to the US. On October 7, 2008 EERI's Southern California Chapter presented a Technical Briefing on the Wenchuan Earthquake. Click here to download the team's report on preliminary observations. |
The team will spend 9 days in the field, collecting data and documenting observations, paying particular attention to the impacts on people, the differing performance of similar structures, the quick government action that saved a large number of homeless, and the enormous challenges facing China in terms of relief and rebuilding. In addition to Marshall Lew, EERI team members are David Friedman and Dennis Lau of Forell/Elsesser Engineers, Inc., and Laurie Johnson, an urban planning consultant, all of San Francisco, California; Tricia Wachtendorf of the Disaster Research Center at the University of Delaware in Newark; and Jian Zhao of the University of Wisconsin at Milwaukee. GEER team members are David Frost of the Georgia Institute of Technology in Savannah; J. P. Bardet of the University of Southern California in Los Angeles, and Tong Qiu of Clarkson University in Potsdam, New York. The May 12 earthquake is the worst to strike China since the 1976 Tangshan event that claimed an estimated 242,000 lives. The May 12 earthquake affected more than 100,000 square miles and about 30 million people. It caused the deaths of more than 65,000 people, injured some 360,000 others, left many more homeless, and destroyed more than 216,000 buildings in Sichuan Province, including approximately 6,900 school buildings, whose collapses buried thousands of students and teachers. EERI is an Oakland-based nonprofit organization that, for over thirty years, has conducted a Learning from Earthquakes Program with funding from the National Science Foundation (NSF). EERI has sent researchers to investigate damaging earthquakes around the world. The research teams have brought back valuable observations that hold lessons for U.S. engineering practitioners and researchers as they strive to reduce earthquake hazards. GEER is based in Berkeley, California, and was formed in 2006 for the purpose of advancing geotechnical research and practice by documenting the geotechnical and related effects of important earthquakes. The travel of GEER participants is supported by NSF. After the team returns, their findings will be published in the EERI Newsletter; public briefings may also be scheduled. Links to news and scientific reports, photo galleries and videos pertaining to the Wenchuan earthquake are available on this site. For more information about the reconnaissance mission, contact the EERI office at 510-451-0905 or e-mail
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Last Updated ( Wednesday, 05 November 2008 )
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Fault rupture at Bailu Middle School did little damage to new bldg (left), Wenchuan 2008 [photo: M Lew]
Damaged building, Bailu, Wenchuan 2008 [photo: V. Cedillos, Project Manager, GeoHazards Intl]
Ground settlement in Bailu, Wenchuan 2008 [photo: V Cedillos, GeoHazards Intl]
Temporary housing in Bailu, Wenchuan 2008 [photo: V Cedillos, GeoHazards Intl]
Timber lace construction, Bailu, Wenchuan 2008 [photo: V Cedillos, GeoHazards Intl]
Bridge, Wenchuan 2008 [photo: M Lew]
GaoYuan Bridge [photo: Build Change]
Han Wang High School shear wall, external view [photo: Build Change]
Collapsed spans of reinforced concrete arch bridge, Xiao Yu Dong [photo: Build Change]
Adjacent bldgs may have averted collapse of 5-story masonry bldg in Dujiangyan [photo: Build Change]
Ground floor column failure (see previous image) [photo: Build Change]
6-story unreinforced masonry bldg with precast concrete plank floors, Dujiangyan [photo: Build Change]
Precast concrete plank rubble, collapsed unreinforced masonry bldg, Dujiangyan [photo: Build Change]
Dujiangyan Shelter, Wenchuan 2008 [photo: M Lew]
Shelter in Dujiangyan, Wenchuan 2008 [photo: M Lew]
Damaged multistory building, Dujiangyan, Wenchuan [photo: V Cedillos, GeoHazards Intl]
Damaged 6-story residential bldg, Dujiangyan, Wenchuan 2008 [photo: M Lew]
Temporary housing, Dujiangyan, Wenchuan 2008 [photo: V Cedillos, GeoHazards Intl]
Reconnaissance team near Gaoyuan Village, Wenchuan 2008 [photo: M Lew]
Damaged buildings at Lidui Park, Wenchuan 2008 [photo: M Lew]
Residential building, Phoenix Lane, Wenchuan 2008 [photo: M Lew]
Shenxigou, Wenchuan 2008 [photo: M Lew]
Tonji Middle School, Wenchuan 2008 [photo: M Lew]
Xiaoyudong Bridge damaged by fault rupture thrusting abutment, Wenchuan 2008 [photo: M Lew]
Collapse of bldgs straddling fault running through town of Xiaoyudong, Wenchuan 2008 [photo: M Lew]
Damaged aluminum plant at Xuankou, Wenchuan 2008 [photo: M Lew]
Landslide in Yinchanggou, Wenchuan 2008 [photo: M Lew]
Damaged building in Yingxiu, Wenchuan 2008 [photo: M Lew]
Interview with local colleague in Yingxiu, Wenchuan 2008 [photo: M Lew]
Extensive damage in Yingxiu, Wenchuan 2008 [photo: M Lew]
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