A5035322971- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Geology and Paleoclimatology Research
- Geological Formations and Processes Exploration
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- Geological Modeling and Analysis
- Geological formations and processes
- Geological and Tectonic Studies in Latin America
- Geological and Geophysical Studies Worldwide
- Cryospheric studies and observations
- Seismic Imaging and Inversion Techniques
- Ionosphere and magnetosphere dynamics
- Geomagnetism and Paleomagnetism Studies
- Artificial Intelligence in Law
- Innovative Approaches in Technology and Social Development
- Meteorological Phenomena and Simulations
- Geological Studies and Exploration
- Marine and environmental studies
- Arctic and Antarctic ice dynamics
- Planetary Science and Exploration
University of Arizona
2012-2024
NOAA National Geodetic Survey
2022-2024
National Oceanic and Atmospheric Administration
1978-2024
University of Tennessee at Knoxville
2020
Center for Astrophysics Harvard & Smithsonian
1997-2011
Smithsonian Astrophysical Observatory
2002-2003
Harvard University Press
1996-2002
U.S. Air Force Institute of Technology
2002
California Institute of Technology
1998
Harvard University
1998
The Wasatch fault and adjacent zones provide an opportunity to compare present‐day deformation rate estimates obtained from space geodesy with geologic displacement rates over at least four temporal windows, ranging the last millennium up 10 Myr. three easternmost GPS sites of Basin Range Geodetic Network (BARGEN) this latitude define a ∼130‐km‐wide region spanning major normal faults extending east‐west total 2.7 ± 0.4 mm/yr, average regional strain estimated be 21 4 nstrain/yr, about twice...
We investigate the distribution of active deformation in northern Basin and Range province using data from continuous GPS (CGPS) networks, supplemented by additional campaign Death Valley, Range, Sierra Nevada–Great Valley regions. To understand contemporary strain rate field context greater Pacific (P)–North America (NA) plate boundary zone, we use velocities to estimate average relative motions Colorado Plateau (CP), (SNGV) microplate, a narrow north‐south elongate region central Great...
We use Global Positioning System (GPS) estimates of horizontal site velocity to constrain slip rates on faults comprising the Pacific‐North America plate boundary in southern California and northern Mexico. enlist a simple elastic block model parameterize distribution sum deformation within across boundary. estimate relative motion rate 49 ± 3 mm/yr (one standard deviation), consistent with NUVEL‐1A estimates. are able resolve robust for southernmost San Andreas, Jacinto, Elsinore (26 2, 9 6...
Project BIFROST (Baseline Inferences for Fennoscandian Rebound Observations, Sea‐level, and Tectonics) combines networks of continuously operating GPS receivers in Sweden Finland to measure ongoing crustal deformation due glacial isostatic adjustment (GIA). We present an analysis data collected between August 1993 May 2000. compare the determinations three‐dimensional motion predictions calculated using high‐resolution deglaciation model recently proposed by Lambeck et al. [1998a , 1998b] ....
We present crustal deformation results from a geodetic experiment (Retreating‐Trench, Extension, and Accretion Tectonics (RETREAT)) focused on the northern Apennines orogen in Italy. The centers 33 benchmarks measured with GPS annually or more frequently between 2003 2007, supplemented by data an additional older set of 6 campaign observations stations Croatia, 187 continuous within around In attempt to achieve best possible estimates for rates their uncertainties, we estimate filter common...
Research Article| November 01, 2004 Codependent histories of the San Andreas and Jacinto fault zones from inversion displacement rates Richard A. Bennett; Bennett 1Department Geosciences, University Arizona, 1040 East 4th Street, Tucson, Arizona 85721, USA Search for other works by this author on: GSW Google Scholar Anke M. Friedrich; Friedrich 2Institute Potsdam, Postfach 60 15 53, 14415 Germany Kevin P. Furlong 3Department Pennsylvania State University, 542 Deike Building, Park, 16082,...
Research Article| April 01, 1999 Present-day pattern of Cordilleran deformation in the western United States R. A. Bennett; Bennett 1Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA Search other works by this author on: GSW Google Scholar J. L. Davis; Davis B. P. Wernicke 2California Institute Technology, Pasadena, California 91125, Author and Article Information Publisher: Geological Society America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print...
Research Article| August 01, 2009 Active aseismic creep on the Alto Tiberina low-angle normal fault, Italy Sigrún Hreinsdóttir; Hreinsdóttir 1Department of Geosciences, University Arizona, Gould-Simpson #77, 1040 E 4th Street, Tucson, Arizona 85721, USA Search for other works by this author on: GSW Google Scholar Richard A. Bennett Author and Article Information Publisher: Geological Society America Received: 13 May 2008 Revision 05 Mar Accepted: 18 First Online: 03 2017 Online ISSN:...
On 2008 May 29 an earthquake doublet shook the southwestern part of Iceland. The first main shock originated beneath Mt Ingólfsfjall, located near western margin South Iceland Seismic Zone (SISZ) approximately 40 km east capital Reykjavík. Immediate aftershock activity was recorded by SIL seismic network, operated Icelandic Meteorological Office (IMO), with both N–S and E–W structures illuminated over a broad area. A continuous GPS (CGPS) also IMO, coseismic offsets up to 200 mm horizontal...
Research Article| January 01, 2008 Eocene to present subduction of southern Adria mantle lithosphere beneath the Dinarides Richard A. Bennett; Bennett 1University Arizona, Department Geosciences, 1040 East 4th Street, Tucson, Arizona 85721, USA Search for other works by this author on: GSW Google Scholar Sigrún Hreinsdóttir; Hreinsdóttir Goran Buble; Buble Tomislav Bašić; Bašić 2Faculty Geodesy, University Zagreb and Croatian Geodetic Institute, 10144, Croatia Željko Bačić; Bačić 3Croatian...
We present the first results from a dense network of 36 campaign and 46 continuous GPS stations located in Eastern Transverse Ranges Province (ETR), transition zone between southernmost San Andreas fault (SSAF) eastern California shear (ECSZ). analyzed data together with available for period 1994–2009. used velocity estimates to constrain elastic block models investigate fault‐loading rates representing four hypotheses characterized by different fault‐block geometries. Fault‐block scenarios...
Abstract The complex interactions between water vapor fields and deep atmospheric convection remain one of the outstanding problems in tropical meteorology. lack high spatial–temporal resolution, all-weather observations tropics has hampered progress. Numerical models have difficulties, for example, representing shallow-to-deep convective transition diurnal cycle precipitation. Global Navigation Satellite System (GNSS) meteorology, which provides all-weather, high-frequency (5 min),...
Continuous GPS (CGPS) coordinate time-series are known to experience repeating deformation signals with seasonal and other periods. It is unlikely that these represent perfect sinusoids temporally constant amplitude. We develop an analysis method accommodates temporal variations in the amplitudes of sinusoidal signals. apply simulated numerically explore potential consequences neglecting decadal variation amplitude annual motions on residual-error spectra CGPS measurements, as well bias...
We have acquired and analyzed data from the northern Basin Range (NBAR) continuous GPS network since July 1996. The RMS residual with respect to best fitting lines through individual station position estimates is 2–3 mm in horizontal 6–10 vertical. After first 395 days of operation, uncertainties velocity are 1–2 mm/yr (1‐σ). Relative motion among NBAR sites located eastern Nevada Utah small, but east‐west extension significant assuming uniform strain accumulation across whole network....
We collected data from a transect of continuous Global Positioning System (GPS) sites across the eastern Basin and Range province at latitude 39°N 1997–2000. Intersite velocities define region ∼350 km wide broadly distributed strain accumulation ∼10 nstr yr−1. On western margin region, site EGAN, north Ely, Nevada, moved rate 3.9 ± 0.2 mm yr−1 to west relative CAST, which is on Colorado Plateau. Velocities most Ely an average ∼3 defining area central Nevada that does not appear be extending...
Abstract A dense Global Navigation Satellite System (GNSS) meteorological network (∼20 stations) in the central Amazon Basin Brazil is being developed for long‐term studies of deep convection/water vapor interactions and feedback. In this article, described preliminary results are presented: GNSS‐derived precipitable water useful tracking advection identifying convective events convergence timescales. Upon completion (early 2011), 3D field analyses participation intensive campaign GPM‐CHUVA...
We present an analytic formulation to model creep events at the transition between brittle behavior in crust and viscous ductile shear zones. assume that (BDT) are triggered by slip on optimally oriented fractures or network of filled with weak material. These expressed as transient flow zones likely aided release crustal fluids. show zone can be modeled motion a forced damped oscillator composed viscoelastic crust, creeping BDT. The time scale varies seconds thousands years depending...
Abstract Earth's present‐day response to enhanced glacial melting resulting from climate change can be measured using Global Positioning System (GPS) technology. We present data 62 continuously operating GPS instruments in Iceland. Statistically significant upward velocity and accelerations are recorded at 27 stations, predominantly located the Central Highlands region of Iceland, where thinning Iceland ice caps results velocities more than 30 mm/yr uplift 1–2 2 . use our acceleration...
Abstract Campaign GPS data collected from 2002 to 2014 result in 41 new site velocities the San Bernardino Mountains and vicinity. We combined these with 93 continuous 216 published obtain a velocity profile across Pacific‐North America plate boundary through Mountains. modeled boundary‐parallel, horizontal deformation 5–14 parallel one obliquely oriented screw dislocations within an elastic half‐space. Our rate for strand of Andreas Fault (6.5 ± 3.6 mm/yr) is consistent recently latest...
A dense, continuous GPS network was established in the Yucca Mountain area 1999 to provide most reliable measurements possible of geodetic strain patterns across nation's only proposed permanent repository for high‐level radioactive waste. The lies astride a boundary between geodetically stable central Great Basin and active western Basin, which at latitude is undergoing distributed right‐lateral shear rate ∼60 nstrain/yr. Monitoring from 2003 (3.75 years) yields velocity field characterized...