NH14A:
New Geophysical Methods for Understanding Geohazards in Urban Basins II

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Session ID#: 16761

Session Description:
Virtually all the world's major cites have developed in sedimentary basins and experience rapid urbanization growth, and this usually enhances their susceptibility to a range of geological hazards: basin resonance can amplify seismic waves, subsidence due to groundwater extraction and/or aquifer depletion during drought can damage buildings and infrastructure, contaminated surface waters can leach into subsurface potable water supplies, etc. Traditional approaches establish site-specific hazard by using cone penetration test, microtremor and borehole measurements. Novel approaches use remote sensing (e.g. InSAR) to map surface deformation (subsidence), active and passive seismic methods to image the elastic and anelastic large-scale basin structure and to characterize seismic amplification during earthquakes, microgravity and electromagnetic methods for identifying karsts and complex sedimentary structure. This session aims to bring together researchers in these various fields to discuss their application to the reduction of urban geohazard risk.
Primary Convener:  Phil R Cummins, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Convener:  Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States
Chairs:  Marine Denolle, Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States and Loic Viens, Earthquake Research Institute, University of Tokyo, Tokyo, Japan
OSPA Liaison:  Phil R Cummins, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Co-Organized with:
Seismology, and Seismology

Cross-Listed:
  • G - Geodesy
  • H - Hydrology
  • NS - Near Surface Geophysics
  • S - Seismology

Proposed Co-Organized Session with:
  • S - Seismology
Index Terms:

1211 Non-tectonic deformation [GEODESY AND GRAVITY]
1803 Anthropogenic effects [HYDROLOGY]
4325 Megacities and urban environment [NATURAL HAZARDS]
7212 Earthquake ground motions and engineering seismology [SEISMOLOGY]

Abstracts Submitted to this Session:

Characterizing land subsidence mechanisms as a function of urban basin geohazards using space geodesy (Invited) (122660)
Gerald W Bawden, NASA Headquarters, Washington, DC, United States
Time-lapse seismic waveform inversion for monitoring near-surface microbubble injection (168270)
Rie Nakata, University of Western Australia, Crawley, Australia, UGeun Jang, Korea Polar Research Institute, Incheon, South Korea, David E Lumley, The University of Texas at Dallas, Sustainable Earth Systems Sciences, Richardson, United States, Takuji Mouri, Japan Oil, Gas and Metals National Corporation (JOGMEC), Chiba, Japan, Masashi Nakatsukasa, Sakhalin Energy Investment Companies, Yuzhno-Sakhalinsk, Russia and Mamoru Takanashi, JOGMEC Japan Oil, Gas and Metals National Corporation, Chiba, Japan
Higher Earthquake Intensity Attenuation Rates in the Urbanized Southern Puget Lowland Than Elsewhere Along the Cascadia Forearc (135507)
Thomas M Brocher, U.S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States
Using Arrays to Map the Seismic Hazard in the Los Angeles Region (Invited) (153253)
Robert W Clayton, California Institute of Technology, Pasadena, CA, United States
A Novel Approach to Constrain Near-Surface Seismic Wave Speed Based on Polarization Analysis (148349)
Sunyoung Park, University of Chicago, Department of the Geophysical Sciences, Chicago, United States and Miaki Ishii, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Deep ReMi Imaging - Mapping Shear-Wave Velocities to 1 km Depth and Greater Using Refraction Microtremor (125178)
John N Louie1, Aasha Pancha2, Dan Munger1, Claire Law3, Dayton Adams3, Timothy Michael Mick3 and Satish K Pullammanappallil4, (1)University of Nevada, Reno, Nevada Seismological Laboratory, Reno, NV, United States, (2)Victoria University of Wellington, Wellington, New Zealand, (3)University of Nevada Reno, Geological Sciences and Engineering, Reno, NV, United States, (4)Optim, Reno, NV, United States
Basin seismology in the megacity of Jakarta, Indonesia (197251)
Phil R Cummins1, Erdinc Saygin2, Athanasius Cipta3, Mohamad Ridwan4, Niranjan Joshi3, Jaya Murjaya5, Masyhur Irsyam6 and Sri Widiyantoro7, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)University of Western Australia, Department of Physics, School of Physics, Mathematics and Computing,Faculty of Engineering and Mathematical Sciences, Perth, WA, Australia, (3)Australian National University, Research School of Earth Sciences, Canberra, Australia, (4)Indonesian Ministry of Public Works, Research Institute for Human Settlements, Bandung, Indonesia, (5)Indonesian Agency for Meteorology, Climatology and Geophysics, Jakarta, Indonesia, (6)Bandung Institute of Technology, Department of Civil and Environmental Engineering, Bandung, Indonesia, (7)Bandung Institute of Technology, Global Geophysics Research Group, Bandung, Indonesia

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