A5024200886- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Seismic Imaging and Inversion Techniques
- Seismic Performance and Analysis
- Healthcare Policy and Management
- Earthquake Detection and Analysis
- Geochemistry and Geologic Mapping
- Geriatric Care and Nursing Homes
- Telemedicine and Telehealth Implementation
- Hydrocarbon exploration and reservoir analysis
- Landslides and related hazards
- Geology and Paleoclimatology Research
- Inflammatory Biomarkers in Disease Prognosis
- Electronic Health Records Systems
- Global Health Care Issues
- Acute Myocardial Infarction Research
- Geological formations and processes
- Antiplatelet Therapy and Cardiovascular Diseases
- Health disparities and outcomes
- Nutrition and Health in Aging
- Business Law and Ethics
- Mobile Health and mHealth Applications
Icahn School of Medicine at Mount Sinai
1995-2025
University of Nevada, Reno
2015-2024
Sandia National Laboratories
2023
Mount Sinai Hospital
2023
Smith Family
2013-2022
Newcastle upon Tyne Hospital
2021
Ambulance Victoria
2019
Nevada Division of Public and Behavioral Health
2019
The University of Texas Medical Branch at Galveston
2015-2018
Kent and Canterbury Hospital
2015
We present a methodology for conducting site-specific probabilistic analysis of fault displacement hazard. Two approaches are outlined. The first relates the occurrence at or near ground surface to earthquakes in same manner as is done standard seismic hazard (PSHA) shaking. this approach taken directly from PSHA with ground-motion attenuation function replaced by function. In second approach, rate events and distribution derived characteristics faults geologic features site interest....
Abstract After approximately 2 months of swarm‐like earthquakes in the Mogul neighborhood west Reno, NV, seismicity rates and event magnitudes increased over several days culminating an M w 4.9 dextral strike‐slip earthquake on 26 April 2008. Although very shallow, main shock had a different sense slip than locally mapped dip‐slip surface faults. We relocate 7549 earthquakes, calculate 1082 focal mechanisms, statistically cluster relocated catalog to understand character interaction active...
Abstract We estimate stress drops for 148 shallow (<6 km) earthquakes in the complex 2008 Mogul, Nevada, swarm using empirical Green's function‐derived spectral ratios. Near‐source, temporary broadband seismometers deployed before M w 4.9 main shock provide high‐quality records of many foreshocks and aftershocks, an ideal opportunity to investigate uncertainties corner frequency measurement as well drop (Δ σ ) variation related space, time, depth, mechanism, magnitude. explore source...
Abstract Analysis of a small earthquake swarm near Virginia City, NV, reveals complex structural features, including an interplay both fluid‐driven and aseismic‐driven migration within naturally occurring tectonic sequence. The City sequence occurred over ~10 days in January 2014. We relocate 305 events to reveal three separate, well‐defined planar structures. earthquakes initially migrate at rate consistent with pore fluid diffusion, outlining moderately dipping plane. then jump vertical...
A deep earthquake swarm in late 2003 at Lake Tahoe, California (Richter magnitude < 2.2; depth of 29 to 33 kilometers), was coeval with a transient displacement 6 millimeters horizontally outward from the and 8 upward measured global positioning system station Slide Mountain (SLID) 18 kilometers northeast. During first 23 days swarm, hypocentral depths migrated rate 2.4 per second up-dip along 40-square-kilometer structure striking north 30° west dipping 50° SLID's velocity 20 year...
Policies affecting the determinants of health lie largely outside control care and public sectors. Ensuring considerations in formation implementation policies, programs, projects, plans from all sectors, though lofty, is overall aim Health All Policies. The purpose this article was to identify categories strategies that illustrate how had been implemented United States.We used a 3-phased process: (1) review published gray literature; (2) analysis case examples draft framework, which...
Background The neutrophil-to-lymphocyte ratio (NLR) is a marker of systemic inflammation associated with adverse cardiovascular outcomes. However, limited evidence exists regarding its prognostic role in patients diabetes mellitus (DM) undergoing percutaneous coronary intervention (PCI), which we sought to explore this analysis. Methods We retrospectively evaluated all PCI at large tertiary centre between 2012 and 2022. Patients were stratified according the presence DM, NLR quartiles...
Abstract On 15 May 2020 an Mww 6.5 earthquake occurred beneath the Monte Cristo Range in Mina Deflection region of western Nevada. Rapid deployment eight temporary seismic stations enabled detailed analysis its productive and slowly decaying aftershock sequence (p=0.8), which included ∼18,000 autodetected events 3.5 months. Double-difference, waveform-based relative relocation 16,714 earthquakes reveals a complex network faults, many cross inferred 35-km-long east–northeast-striking,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and structure of bis(indenyl)magnesiumJ. L. Atwood K. D. SmithCite this: J. Am. Chem. Soc. 1974, 96, 4, 994–998Publication Date (Print):February 1, 1974Publication History Published online1 May 2002Published inissue 1 February 1974https://pubs.acs.org/doi/10.1021/ja00811a007https://doi.org/10.1021/ja00811a007research-articleACS PublicationsRequest reuse permissionsArticle Views236Altmetric-Citations33LEARN ABOUT THESE METRICSArticle Views...
The mountain research community is still contending with the need to monitor ecosystems, both improve local management practices and address regional global science questions related Future Earth themes of Dynamic Planet, Global Sustainable Development, Transformations Towards Sustainability. How such efforts may be designed coordinated remains an open question. Historical climate ecological observatories networks typically have not represented scope or spatial topographic distribution...
Abstract The ML 6.4 Chalfant, California, earthquake of 21 July 1986 was preceded by an extensive foreshock sequence. Foreshock activity is characterized shallow clustering activity, including 7 events greater than 3, beginning 18 days before the earthquake, 5.7 24 hr main shock that ruptured only in upper 10 km crust, and “off-fault” cluster perpendicular to slip surface associated with hypocenter shock. Chalfant sequence occurred within local short-period network, spatial temporal...
ABSTRACT Explosions are traditionally discriminated from earthquakes, using the relative amplitude of compressional and shear waves at regional teleseismic distances known as P/S discriminant. Pyle Walter (2019) showed this technique to be less robust shorter distances, in detecting small-magnitude earthquakes low-yield explosions. The disparity is largely due ground motion small, shallow sources being significantly impacted by near-surface structural complexities. To understand implications...
Abstract Accurate event locations are important for many endeavors in seismology, and understanding the factors that contribute to uncertainties those is complex. In this article, we present a case study takes an in-depth look at accuracy precision possible locating nine shallow earthquakes Rock Valley fault zone southern Nevada. These events targeted by Direct Comparison phase of Source Physics Experiment, as candidates colocation chemical explosion with earthquake hypocenter directly...
Abstract The 12 September 1994 Mw 5.8 Double Spring Flat, Nevada, earthquake initiated at the intersection of a northeast- and northwest-striking set conjugate faults within an overlapping zone between Genoa Antelope Valley fault zones, eastern Sierra Nevadan range frontal system. mainshock ruptured on northeast-striking plane. Eight days after mainshock, aftershock activity migrated from plane to fault. Over next 2 years, aftershocks southward onto another then zone. focal mechanisms 17 M...
SUMMARY The 1984 November 23 ML 5.8 Round Valley earthquake is one in the.series of moderate earthquakes to have occurred the Bishop-Mammoth Lakes, California area since 1978. This event and its aftershock sequence are particularly well recorded that they within a dense, local high frequency seismic network, strong motion accelerograms, regional teleseismic digital seismograms available for main shock. We derived fault plane solution from first data, inverted body wave data moment tensor...
Research Article| August 14, 2018 Earthquake Interaction, Fault Structure, and Source Properties of a Small Sequence in 2017 near Truckee, California Rachel L. Hatch; Hatch aNevada Seismological Laboratory, University Nevada, Reno, 1664 North Virginia Street, Nevada 89503, rhatch@nevada.unr.eduken@unr.edu Search for other works by this author on: GSW Google Scholar E. Abercrombie; Abercrombie bDepartment Earth Environment, Boston University, 685 Commonwealth Avenue, Boston, Massachusetts...
ABSTRACT The Nine Mile Ranch (NMR) sequence began with three Mw 5.4–5.6 earthquakes within one hour of each other in December 2016 the remote area Fletcher Valley, Nevada; only 4 min separated first and second events. We analyze this complex earthquake Walker Lane to determine geometry driving mechanism(s), improve understanding deformation seismic hazard region. Field reconnaissance found that these caused significant damage ranch house but no surface rupture. precisely relocate 6000+...
The July 1986, moment magnitude (M w ) 6.3 Chalfant, California, earth- quake is the largest of a recent series (1978-present) moderate-sized earthquakes near Long Valley volcanic region east-central California. sequence con- sists primarily three strike-slip events. High-quality aftershock relocations and short-period focal mechanisms define temporal spatial de- velopment foreshock-mainshock-aftershock periods these Faulting during Mw 5.7 (event I; 20) II; 21 July) events constitute set...
In 2003, a magma intrusion event occurred at 25-30 km in the lower crust under northwestern corner of Lake Tahoe, as evidenced by both an earth- quake swarm and geodetic displacement. This study examines seismicity as- sociated with that subsequent upper crust. HYPODD relocations showed deep approximately 1600 microearthquakes site was concentrated on planar area strike N42°W, dipping 39° to northeast. The largest microearthquake this M 2.2, anomalously high b-value 2.0 is seen...