Publications
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Infrequent triggering of tremor along the San Jacinto Fault near Anza, California
We examine the conditions necessary to trigger tremor along the San Jacinto fault (SJF) near Anza, California, where previous studies suggest triggered tremor occurs, but observations are sparse. We investigate the stress required to trigger tremor using continuous broadband seismograms from 11 stations located near Anza, California. We examine 44 Mw≥7.4 teleseismic events between 2001 and 2011; t
Authors
Tien-Huei Wang, Elizabeth S. Cochran, Duncan Carr Agnew, David D. Oglesby
Pre-flight calibration and initial data processing for the ChemCam laser-induced breakdown spectroscopy instrument on the Mars Science Laboratory rover
The ChemCam instrument package on the Mars Science Laboratory rover, Curiosity, is the first planetary science instrument to employ laser-induced breakdown spectroscopy (LIBS) to determine the compositions of geological samples on another planet. Pre-processing of the spectra involves subtracting the ambient light background, removing noise, removing the electron continuum, calibrating for the wav
Authors
R. C. Wiens, S. Maurice, J. Lasue, O. Forni, R.B. Anderson, S. Clegg, S. Bender, D. Blaney, B.L. Barraclough, A. Cousin, L. DeFlores, D. Delapp, M.D. Dyar, C. Fabre, O. Gasnault, N. Lanza, J. Mazoyer, N. Melikechi, P.-Y. Meslin, H. Newsom, A. Ollila, R. Perez, R. Tokar, D. Vaniman
Modeling steam pressure under martian lava flows
Rootless cones on Mars are a valuable indicator of past interactions between lava and water. However, the details of the lava–water interactions are not fully understood, limiting the ability to use these features to infer new information about past water on Mars. We have developed a model for the pressurization of a dry layer of porous regolith by melting and boiling ground ice in the shallow sub
Authors
Colin M. Dundas, Laszlo P. Keszthelyi
California State Waters Map Series Data Catalog
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California's State Waters. The CSMP approach is to create highly detailed seafloor maps and associated data layers through the collection, in
Authors
Nadine E. Golden
Seismicity of the Earth 1900-2012 Sumatra and vicinity
The plate boundary southwest of Sumatra is part of a long tectonic collision zone that extends over 8,000 km from Papua, New Guinea, in the east to the Himalayan front in the west. The Sumatra-Andaman part of the collision zone forms a subduction zone plate boundary, which accommodates convergence between the Indo-Australia and Sunda plates. This convergence is responsible for the intense seismici
Authors
Gavin P. Hayes, Melissa Bernardino, Fransiska Dannemann, Gregory Smoczyk, Richard W. Briggs, Harley M. Benz, Kevin P. Furlong, Antonio Villaseñor
Summary of the Third International Planetary Dunes Workshop: remote sensing and image analysis of planetary dunes
The Third International Planetary Dunes Workshop took place in Flagstaff, AZ, USA during June 12–15, 2012. This meeting brought together a diverse group of researchers to discuss recent advances in terrestrial and planetary research on aeolian bedforms. The workshop included two and a half days of oral and poster presentations, as well as one formal (and one informal) full-day field trip. Similar
Authors
Lori K. Fenton, Rosalyn K. Hayward, Briony H.N. Horgan, David M. Rubin, Timothy N. Titus, Mark A. Bishop, Devon M. Burr, Matthew Chojnacki, Cynthia L. Dinwiddie, Laura Kerber, Alice Le Gall, Timothy I. Michaels, Lynn D.V. Neakrase, Claire E. Newman, Daniela Tirsch, Hezi Yizhaq, James R. Zimbelman
Radiocarbon dating of plant macrofossils from tidal-marsh sediment
Tidal-marsh sediment is an archive of Holocene environmental changes, including movements of sea and land levels, and extreme events such as hurricanes, earthquakes, and tsunamis. Accurate and precise radiocarbon dating of environmental changes is necessary to estimate rates of change and the recurrence interval (frequency) of events. Plant macrofossils preserved in growth position (or deposited s
Authors
A.C. Kemp, Alan R. Nelson, B. P. Horton
Correction to “Estimating the timing and location of shallow rainfall-induced landslides using a model for transient, unsaturated infiltration”
No abstract is available for this article.
Authors
Rex L. Baum, Jonathan W. Godt
Post-earthquake building safety inspection: Lessons from the Canterbury, New Zealand, earthquakes
The authors discuss some of the unique aspects and lessons of the New Zealand post-earthquake building safety inspection program that was implemented following the Canterbury earthquake sequence of 2010–2011. The post-event safety assessment program was one of the largest and longest programs undertaken in recent times anywhere in the world. The effort engaged hundreds of engineering professionals
Authors
J. Marshall, Kishor S. Jaiswal, N. Gould, F. Turner, B. Lizundia, J. Barnes
Refinement of late-Early and Middle Miocene diatom biostratigraphy for the east coast of the United States
Integrated Ocean Drilling Program (IODP) Expedition 313 continuously cored Lower to Middle Miocene sequences at three continental shelf sites off New Jersey, USA. The most seaward of these, Site M29, contains a well-preserved Early and Middle Miocene succession of planktonic diatoms that have been independently correlated with the geomagnetic polarity time scale derived in studies from the equator
Authors
John A. Barron, James Browning, Peter Sugarman, Kenneth G. Miller
On the insignificance of Herschel's sunspot correlation
We examine William Herschel's hypothesis that solar-cycle variation of the Sun's irradiance has a modulating effect on the Earth's climate and that this is, specifically, manifested as an anticorrelation between sunspot number and the market price of wheat. Since Herschel first proposed his hypothesis in 1801, it has been regarded with both interest and skepticism. Recently, reports have been publ
Authors
Jeffrey J. Love
The uses and limitations of the square‐root‐impedance method for computing site amplification
The square‐root‐impedance (SRI) method is a fast way of computing approximate site amplification that does not depend on the details from velocity models. The SRI method underestimates the peak response of models with large impedance contrasts near their base, but the amplifications for those models is often close to or equal to the root mean square of the theoretical full resonant (FR) response o
Authors
David Boore