Publications
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Earthquake intensity distributions: a new view
Pioneering work by Nicolas Ambraseys and many collaborators demonstrates
both the tremendous value of macroseismic data and the perils of its uncritical assessment. In
numerous publications he shows that neglect of original sources and/or failure to appreciate
the context of historical accounts, as well as use of unreliable indicators such as landslid-
ing to determine intensities, commonly leads
Authors
Susan E. Hough
Maximum magnitude earthquakes induced by fluid injection
Analysis of numerous case histories of earthquake sequences induced by fluid injection at depth reveals that the maximum magnitude appears to be limited according to the total volume of fluid injected. Similarly, the maximum seismic moment seems to have an upper bound proportional to the total volume of injected fluid. Activities involving fluid injection include (1) hydraulic fracturing of shale
Authors
Arthur F. McGarr
Crustal earthquake triggering by pre-historic great earthquakes on subduction zone thrusts
Triggering of earthquakes on upper plate faults during and shortly after recent great (M>8.0) subduction thrust earthquakes raises concerns about earthquake triggering following Cascadia subduction zone earthquakes. Of particular regard to Cascadia was the previously noted, but only qualitatively identified, clustering of M>~6.5 crustal earthquakes in the Puget Sound region between about 1200–900
Authors
Brian L. Sherrod, Joan Gomberg
Global surface displacement data for assessing variability of displacement at a point on a fault
This report presents a global dataset of site-specific surface-displacement data on faults. We have compiled estimates of successive displacements attributed to individual earthquakes, mainly paleoearthquakes, at sites where two or more events have been documented, as a basis for analyzing inter-event variability in surface displacement on continental faults.
An earlier version of this composite
Authors
Suzanne Hecker, Robert Sickler, Leah Feigelson, Norman Abrahamson, Will Hassett, Carla Rosa, Ann Sanquini
Three-dimensional ground-motion simulations of earthquakes for the Hanford area, Washington
This report describes the results of ground-motion simulations of earthquakes using three-dimensional (3D) and one-dimensional (1D) crustal models conducted for the probabilistic seismic hazard assessment (PSHA) of the Hanford facility, Washington, under the Senior Seismic Hazard Analysis Committee (SSHAC) guidelines. The first portion of this report demonstrates that the 3D seismic velocity model
Authors
Arthur Frankel, Paul Thorne, Alan Rohay
Response of Global Navigation Satellite System receivers to known shaking between 0.2 and 20 Hertz
Over the past decade, several technological advances have allowed Global Navigation Satellite Systems (GNSS) receivers to have the capability to record displacements at high frequencies, with sampling rates approaching 100 samples per second (sps). In addition, communication and computer hardware and software have allowed various institutions, including the U.S. Geological Survey (USGS), to retrie
Authors
John Langbein, John R. Evans, Fredrick Blume, Ingrid Johanson
What do data used to develop ground-motion prediction equations tell us about motions near faults?
A large database of ground motions from shallow earthquakes occurring in active tectonic regions around the world, recently developed in the Pacific Earthquake Engineering Center’s NGA-West2 project, has been used to investigate what such a database can say about the properties and processes of crustal fault zones. There are a relatively small number of near-rupture records, implying that few reco
Authors
David M. Boore
Southern San Andreas Fault evaluation field activity: approaches to measuring small geomorphic offsets--challenges and recommendations for active fault studies
In southern California, where fast slip rates and sparse vegetation contribute to crisp expression of faults and microtopography, field and high‐resolution topographic data (
Authors
Katherine M. Scharer, J. Barrett Salisbury, J. Ramon Arrowsmith, Thomas K. Rockwell
Advantages of active love wave techniques in geophysical characterizations of seismographic station - Case studies in California and the central and eastern United States
Active-source Love waves, recorded by the multi-channel analysis of surface wave (MASLW) technique, were recently analyzed in two site characterization projects. Between 2010 and 2012, the 2009 American Recovery and Reinvestment Act (ARRA) funded GEOVision to conduct geophysical investigations at 191 seismographic stations in California and the Central Eastern U.S. (CEUS). The original project pla
Authors
Antony Martin, Alan K. Yong, Larry A. Salomone
Pros and cons of rotating ground motion records to fault-normal/parallel directions for response history analysis of buildings
According to the regulatory building codes in the United States (e.g., 2010 California Building Code), at least two horizontal ground motion components are required for three-dimensional (3D) response history analysis (RHA) of building structures. For sites within 5 km of an active fault, these records should be rotated to fault-normal/fault-parallel (FN/FP) directions, and two RHAs should be perf
Authors
Erol Kalkan, Neal S. Kwong
Rocking behavior of an instrumented unique building on the MIT campus identified from ambient shaking data
A state-of-the-art seismic monitoring system comprising 36 accelerometers and a data-logger with real-time capability was recently installed at Building 54 on the Massachusetts Institute of Technology's (MIT) Cambridge, MA, campus. The system is designed to record translational, torsional, and rocking motions, and to facilitate the computation of drift between select pairs of floors. The cast-in-p
Authors
Mehmet Çelebi, Nafi Toksöz, Oral Büyüköztürk
Probing reservoir-triggered earthquakes in Koyna, India, through scientific deep drilling
We report here the salient features of the recently concluded International Continental Scientific Drilling Program (ICDP) workshop in Koyna, India. This workshop was a sequel to the earlier held ICDP workshop in Hyderabad and Koyna in 2011. A total of 49 experts (37 from India and 12 from 8 other countries) spent 3 days reviewing the work carried out during the last 3 years based on the recommend
Authors
H. Gupta, Shailesh Nayak, William L. Ellsworth, Y. J. B. Rao, S. Rajan, B.K. Bansal, N. Purnachandra Rao, S. Roy, K. Arora, R. Mohan, V. M. Tiwari, H. V. S. Satyanarayana, P. K. Patro, D. Shashidhar, K. Mallika