A5080543959- earthquake and tectonic studies
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Disaster Management and Resilience
- Seismic Waves and Analysis
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismic Imaging and Inversion Techniques
- Seismic Performance and Analysis
- Disaster Response and Management
- Infrastructure Resilience and Vulnerability Analysis
- Wind and Air Flow Studies
- Geological and Geophysical Studies
- Botany and Geology in Latin America and Caribbean
- GNSS positioning and interference
- Geophysics and Sensor Technology
- Big Data Technologies and Applications
- Fluid Dynamics Simulations and Interactions
- Astro and Planetary Science
- Groundwater and Isotope Geochemistry
- Anomaly Detection Techniques and Applications
- Fire effects on ecosystems
- Arctic and Russian Policy Studies
- Hydraulic Fracturing and Reservoir Analysis
- Tropical and Extratropical Cyclones Research
Geological Survey of Canada
2020-2023
University of British Columbia
2020-2023
Natural Resources Canada
2021-2023
Georgia Institute of Technology
2015-2019
University of Victoria
2014-2015
McGill University
2012
Canada is exposed to rare but potentially destructive earthquakes that threaten densely settled metropolitan centers in many parts of the country. To assess impacts and consequences future natural-hazard events help advance policy goals objectives Sendai Framework for Disaster Risk Reduction, Natural Resources Canada, through a collaborative partnership with Global Earthquake Model Foundation, produced national seismic risk model. Developing this model has required creation exposure...
Abstract We apply a waveform matching technique to obtain detailed earthquake catalog around the rupture zone of 5 September 2012 moment magnitude 7.6 Nicoya earthquake, with emphasis on its aftershock sequence. Starting from preliminary catalog, we relocate ~7900 events using TomoDD better quantify their spatiotemporal behavior. Relocated aftershocks are mostly clustered in two groups. The first is immediately above major coseismic slip patch, partially overlapping shallow afterslip. second...
Abstract Measurements of seismic anisotropy in continental regions are frequently interpreted with respect to past tectonic processes, preserved the lithosphere as “fossil” fabrics. Models present‐day sublithospheric flow (often using absolute plate motion a proxy) also used explain observations. Discriminating between these different sources is particularly challenging beneath shields, whose thick (≥200 km) lithospheric roots may record protracted history deformation and strongly influence...
Abstract We present detailed surface measurements of the first 3.5 years postseismic deformation following 5 September 2012 moment magnitude ( M w ) 7.6 Nicoya, Costa Rica, earthquake. The dominant signal in 2.5 is uniform horizontal trenchward motion totaling 7–26 cm across 40 stations. Trenchward velocity strongly diminished by mid‐2014 and appears 2016 to have begun reversing. invert determine corresponding afterslip on a 3‐D interface. Results show significant both updip downdip main...
This article examines spatial changes to the local stress field resulting from 28 October 2012, M w 7.8 Haida Gwaii earthquake, off west coast of Moresby Island, British Columbia. event occurred on a northeast‐dipping, potentially blind‐thrust fault rather than subvertical Queen Charlotte (QCF) that represents Pacific–North American plate boundary. was largest earthquake along Canadian portion this boundary since 1949 s 8.1 earthquake. The U.S. Geological Survey Coulomb software is used...
The geometry and kinematics of the causative fault 27 July 2022 moment magnitude (Mw) 7.0 earthquake, which is one strongest to hit northern central Luzon in past 30 years, were estimated through inverse modeling line-of-sight interferometric synthetic aperture radar deformation. We modeled rupture along multiple candidate faults based on fit with pattern deformation, consistency focal mechanisms, compatibility known mapped active region. Our preferred model, located west parallel Abra River...
Abstract This article examines rupture processes of the 28 October 2012 M w 7.8 Haida Gwaii earthquake off coast British Columbia, Canada, using an empirical Green’s function (EGF) technique. The was largest event along Canadian portion Pacific–North American plate boundary since s 8.1 Queen Charlotte 1949. It occurred a potentially blind thrust fault dipping gently to northeast rather than main, subvertical fault. Surface waveforms from 2001 6.3 event, located only 15 km epicenter and...

 Introduction: Through receiver function analysis, this study inquires into some of the most basic properties crust below southern and central Quebec. Methods: This is accomplished, using technique, by stacking waveforms from 277 teleseismic events magnitude 6.0 larger to find delay in arrival time for several phases p-wave coda, relative initial arrival. information used establish a linear relationship between thickness p- s-wave velocity ratio, each which stacked given station...
Alison L. Bird et al. report on the Mw 7.8 earthquake offshore Haida Gwaii, Canada, from 2012 for Summary of Bulletin International Seismological Centre.
a Magnitude 8.0 earthquake occurred off the west coast of New Ireland, north Duke York Islands.The event, major left-lateral strike-slip earthquake, ruptured Weitin Fault over hundreds kilometres and caused massive horizontal land movements in Gazelle Peninsula Ireland.The on boundary between Pacific South Bismarck Plates represents release strain that has built up several decades during time plate was locked.Measurements from GPS monitoring network show co-seismic displacements ranging 0.3...