A5087264630- earthquake and tectonic studies
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Geological and Tectonic Studies in Latin America
- Botany and Geology in Latin America and Caribbean
- GNSS positioning and interference
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Tropical and Extratropical Cyclones Research
- Seismic Imaging and Inversion Techniques
- Drilling and Well Engineering
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Flood Risk Assessment and Management
- Underwater Acoustics Research
- Adhesion, Friction, and Surface Interactions
- Mechanical stress and fatigue analysis
- Landslides and related hazards
- Vibration and Dynamic Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Coastal and Marine Dynamics
Radiology Associates of Albuquerque
2020
University of South Florida
2014-2019
The 5 September 2012 M(w) 7.6 earthquake on the Costa Rica subduction plate boundary followed a 62-y interseismic period. High-precision GPS recorded numerous slow slip events (SSEs) in decade leading up to earthquake, both up-dip and down-dip of seismic rupture. Deeper SSEs were larger than shallower ones and, if characteristic period, release most locking limiting rupture magnitude. Shallower smaller, accounting for some but not all locking. One SSE occurred several months before changes...
Abstract The Nicoya Peninsula in northwest Costa Rica overlies a section of the subduction megathrust along Middle America Trench. On 5 September 2012, moment magnitude 7.6 earthquake occurred beneath dense network continuous GPS and seismic stations. Many stations recorded event at high rate, 1 Hz or better. We analyze temporal spatial evolution surface deformation after earthquake. Our results show that main rupture was followed by significant afterslip within first 3 h following event....
A slow slip event in Costa Rica migrated toward the hypocenter of a large megathrust earthquake, possibly triggering event.
Abstract In February 2014 a M w = 7.0 slow slip event (SSE) took place beneath the Nicoya Peninsula, Costa Rica. This occurred 17 months after 5 September 2012, 7.6, earthquake and along same subduction zone segment, during period when significant postseismic deformation was ongoing. A second SSE in middle of 2015, 21 38 earthquake. The recurrence interval for SSEs unchanged by However, spatial distribution differed significantly from previous events, having only deep (~40 km) slip, compared...
Abstract The Global Seismographic Network (GSN) has been used extensively by seismologists to characterize large earthquakes and image deep earth structure. Although the network’s original design goals have met, seismological community suggested that incorporation of small-aperture seismic arrays at select sites may improve performance network enable new observations. As a pilot study for this concept, we created 500 m aperture, nine-element broadband array around GSN station ANMO...