She is an expert at probabilistic seismic hazard assessment, studying the nature of specific faults, assessing the likely intensity and duration of ground shaking during a quake and estimating the probable damage given the type, age and construction quality of local structures.
Sensor networks are installed for many purposes such as monitoring system status or faults, assessing renewable resources, and so forth.
Despite what may be the world's most intensive effort to map faults and assess risks by a notoriously earthquake-prone and earthquake-conscious nation, such a strong quake was not anticipated for the region, says University of Tokyo geophysicist Robert Geller.
Some faults may be assessed to be unfavorably oriented for reactivation because fracturing of intact reservoir rock or seal is more likely to occur.
By scanning fault sets, the CFRs for different fault positions can be obtained and ranked, and then the severity level for different positions of AC faults can be assessed.
I currently conduct research on past earth climate, microbiological and thermal activity, geologic deposition via fluvial and marine systems, and tectonic processes including mountain-building and faulting to assess exploration risk and economic viability of oil, gas, and gas hydrate deposits.
We collected ground-penetrating radar (GPR) data across the active Emigrant Peak Fault in order to image and quantify fault displacement and assess off-fault deformation in an alluvial fan setting.
To estimate the source model, a downhill simplex non-linear inversion method is used to determine the fault rupture geometry, and an automatic fault discretization technique is employed to divide the fault plane to construct the optimal slip model, in which the uncertainties of the fault parameters are assessed by a Monte Carlo method.
The effects of forward-directivity pulses and fling-step pulses on the response of near-fault LCTL were assessed.
The change in the stress field can be predicted by means of standard elasticity theory if the parameters describing the seismogenic fault are known, and its effect on nearby faults can be quantitatively assessed through the evaluation of the so-called Coulomb Failure Function (CFF) [ Reasenberg and Simpson, 1992].
