Taiwan Chelungpu-fault Drilling Project
Description
The 1999 Chi-Chi, Taiwan earthquake (Mw7.7) produced spectacular surface faulting with vertical displacements of up to 8 m on the Chelungpu fault. The rupture behavior of this earthquake was well recorded by the Taiwan Strong Motion recorders, teleseismic data, and GPS-measurements. To understand the earthquake rupture process, one of the main issues is the level of stress on the fault before, during, and after the earthquake. The energy balance between the tectonic stress, dynamic friction, radiated energy, and heat dissipation controls the character of the dynamic rupture. There are many hypotheses for how a fault loses strength during sliding, including slip weakening, dilatational slip pulses, thermal pressurization, mechanical lubrication, and melting to name a few. Physical data is critical needed to make progress in understanding how large earthquakes occur.
The proposal for Taiwan Chelungpu-fault Drilling Project (TCDP) is to obtain a physical sample of the fault where large displacements occurred during the Chi-Chi earthquake, to measure the physical properties and mechanical behavior of the rocks above and below the fault zone and to thoroughly document the state of stress that exists in these rocks following such a large slip event.
(Photo ©:Ronald Conze OSG/ICDP)
See also:
Location
Asia, Taiwan, Taichung County, near by DaKeng
Coordinates
24° 11' 54.35'' N, 120° 45' 8.00'' E (Please scroll down to end of page for more information.)
Programs and Funding
- ICDP Germany - German Science Foundation
- International Continental Scientific Drilling Program (ICDP)
- National Science Council Taiwan
Principal Investigators
- Kuofong Ma, National Central University of Taiwan, Department of Earth Sciences, Institute of Geophysics
- Yiben Tsai, National Central University of Taiwan, Department of Earth Sciences, Institute of Geophysics
- Mark D. Zoback, Stanford University, Department of Geophysics
- Stephen Hoyt Hickman, U.S. Geological Survey, USGS, Menlo Park, Earthquake Hazards Program - Northern California
- Hisao Ito, Japan Agency for Marine-Earth Science and Technology Center(JAMSTEC), Center of Deep Earth Exploration (CDEX)
- Wonn (Azuma) Soh (Wataru), Japan Agency for Marine-Earth Science and Technology Center(JAMSTEC)
Cooperating Principal Investigators
- Jihhao Hung, National Central University of Taiwan, Department of Earth Sciences, Institute of Geophysics
- Sheng-Rong Song, National Taiwan University, Department of Geosciences
- Chienying Wang, National Central University of Taiwan, Department of Earth Sciences, Institute of Geophysics
Partners and Contractors
- GFZ German Research Centre for Geosciences, Scientific Drilling, (Operational Support Group OSG/ICDP)
- Japan Agency for Marine-Earth Science and Technology Center(JAMSTEC)
- National Central University of Taiwan, Department of Earth Sciences, Institute of Geophysics
- National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan
- National Taiwan University, Department of Geosciences
- Stanford University, Department of Geophysics
- U.S. Geological Survey, USGS, Menlo Park, Western Earthquake Hazards Team
Keywords
Active Fault Zones, Chelongpu Fault, Collision Zones, Convergent Margins, Earthquake Physics, Fault Lubrication, Fault Mechanics, Fault Properties, ICDP-2003/06, Taiwan, TCDP
Current State
Drilling operations completed, scientific evaluation in progress
Google Earth/Maps
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| News Highlights | ||||||||||||||||||||||||||||
ECORD/ICDP MagellanPlus Call for Proposals Lake Ohrid Drilling Recovered Continuous Record Lake El’gygytgyn Second Overview Paper Scientific Drilling Issue 15 Online 2013 International Van Earthquake Symposium NSF Workshop: Drilling Active Tectonics and Magmatism New SAG Composition for 2013 The Fennoscandian Arctic Russia - Drilling Early Earth Project Scientific Drilling Issue 14 Online Imaging the Past to Imagine our Future | ||||||||||||||||||||||||||||
| Daily News from Sites | ||||||||||||||||||||||||||||
Lake Ohrid:
In ca 87 m depth at the Cerava hole 2B, we found a conglomerate of gravel, sand and lots of snail and... | ||||||||||||||||||||||||||||
| Calendar | ||||||||||||||||||||||||||||
NSF Workshop on Scientific Drilling and the Evolution of the Earth System NSF Workshop: Drilling Active Tectonics and Magmatism NSF Workshop: Drilling into High-Enthalpy Geothermal Systems | ||||||||||||||||||||||||||||
| Contacts | ||||||||||||||||||||||||||||
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