E. Kiser
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View article: Validation of <i>Ps‐P</i> Tomography for Obtaining 3D Crustal <i>V</i><sub><i>P</i></sub><i>/V</i><sub><i>S</i></sub> With Small‐<i>N</i> Data Sets: An Application to the Mount St. Helens Magmatic System
Validation of <i>Ps‐P</i> Tomography for Obtaining 3D Crustal <i>V</i><sub><i>P</i></sub><i>/V</i><sub><i>S</i></sub> With Small‐<i>N</i> Data Sets: An Application to the Mount St. Helens Magmatic System Open
The high sensitivity of V P /V S to the presence of melt makes images of V P /V S structure particularly useful in magmatic systems, but detailed three‐dimensional models of V P /V S structure in magmatic systems are often restricted to th…
View article: The influence of ground shaking on the distribution and size of coseismic landslides from the Mw 7.6 2005 Kashmir earthquake
The influence of ground shaking on the distribution and size of coseismic landslides from the Mw 7.6 2005 Kashmir earthquake Open
Understanding the conditions that governed the distribution of coseismic landslide frequency and size from past earthquakes is imperative for quantifying the hazard potential of future events. However, it remains a challenge to evaluate th…
View article: Moment-dependent rupture properties of deep-focus earthquakes in the Izu-Bonin subduction zone
Moment-dependent rupture properties of deep-focus earthquakes in the Izu-Bonin subduction zone Open
SUMMARY The physical mechanisms controlling deep-focus earthquakes, or those observed at depths greater than 300 km, remain enigmatic. The leading processes by which deep-focus earthquakes are thought to occur include transformational faul…
View article: Segmentation and Radial Anisotropy of the Deep Crustal Magmatic System Beneath the Cascades Arc
Segmentation and Radial Anisotropy of the Deep Crustal Magmatic System Beneath the Cascades Arc Open
Volcanic arcs consist of many distinct vents that are ultimately fueled by the common melting processes in the subduction zone mantle wedge. Seismic imaging of crustal‐scale magmatic systems can provide insight into how melt is organized i…
View article: Segmentation and radial anisotropy of the deep crustal magmatic system beneath the Cascades arc
Segmentation and radial anisotropy of the deep crustal magmatic system beneath the Cascades arc Open
Volcanic arcs consist of many distinct vents that are ultimately fueled by the common process of melting in the subduction zone mantle wedge. Seismic imaging of crustal scale magmatic systems can provide insight into how melt is organized …
View article: Topographic Control on Ground Motions and Landslides From the 2015 Gorkha Earthquake
Topographic Control on Ground Motions and Landslides From the 2015 Gorkha Earthquake Open
Landslides triggered by earthquake shaking pose a significant hazard in active mountain regions. Steep topography promotes gravitational instabilities and can amplify the seismic wavefield; however, the relationship between topographic amp…
View article: Ground motion simulations relating topographic amplification and landslide initiation during the Mw7.6 2005 Kashmir Earthquake.
Ground motion simulations relating topographic amplification and landslide initiation during the Mw7.6 2005 Kashmir Earthquake. Open
<p>The 2005 Mw 7.6 Kashmir earthquake is the most devastating earthquake to occur along the Himalayan arc, resulting in 87,000 fatalities, 69,000 injuries, and 2.8 million people left homeless. The rupture occurred on a 30&#176; …
View article: Phase picks for Raton Basin earthquakes 2016-2020
Phase picks for Raton Basin earthquakes 2016-2020 Open
This dataset contains earthquake phase arrival information for both broadband seismometers and nodal geophones deployed from 2016 to 2020 in the Raton Basin. The Raton Basin is located on the Colorado-New Mexico border. For more details on…
View article: Phase picks for Raton Basin earthquakes 2016-2020
Phase picks for Raton Basin earthquakes 2016-2020 Open
This dataset contains earthquake phase arrival information for both broadband seismometers and nodal geophones deployed from 2016 to 2020 in the Raton Basin. The Raton Basin is located on the Colorado-New Mexico border. For more details on…
View article: Raton Basin induced seismicity is hosted by networks of short basement faults and mimics tectonic earthquake statistics
Raton Basin induced seismicity is hosted by networks of short basement faults and mimics tectonic earthquake statistics Open
Earth and Space Science Open Archive This work has been accepted for publication in Journal of Geophysical Research - Solid Earth. Version of RecordESSOAr is a venue for early communication or feedback before peer review. Data may be preli…
View article: Seismic Evidence of Bottom‐Up Crustal Control on Volcanism and Magma Storage Near Mount St. Helens
Seismic Evidence of Bottom‐Up Crustal Control on Volcanism and Magma Storage Near Mount St. Helens Open
The lower crust has long been recognized as a place where significant chemical evolution of magma occurs. Understanding the conditions that lead to long‐term storage in or rapid transport through these lower crustal systems has remained a …
View article: Seismic Discrimination of Controlled Explosions and Earthquakes Near Mount St. Helens Using <i>P</i> / <i>S</i> Ratios
Seismic Discrimination of Controlled Explosions and Earthquakes Near Mount St. Helens Using <i>P</i> / <i>S</i> Ratios Open
Explosions and earthquakes are effectively discriminated by P / S amplitude ratios for moderate magnitude events (M ≥ 4) observed at regional to teleseismic distances (≥200 km). It is less clear if P / S ratios are effective explosion disc…
View article: Seismic discrimination of controlled explosions and earthquakes near Mount St. Helens using P/S ratios
Seismic discrimination of controlled explosions and earthquakes near Mount St. Helens using P/S ratios Open
Explosions and earthquakes are effectively discriminated by P/S amplitude ratios for moderate magnitude events (M≥4) observed at regional to teleseismic distances (≥200 km). It is less clear if P/S ratios are effective explosion discrimina…
View article: Seismic discrimination of controlled explosions and earthquakes near Mount St. Helens using P/S ratios
Seismic discrimination of controlled explosions and earthquakes near Mount St. Helens using P/S ratios Open
Explosions and earthquakes are effectively discriminated by P/S amplitude ratios for moderate magnitude events (M≥4) observed at regional to teleseismic distances (≥200 km). It is less clear if P/S ratios are effective explosion discrimina…
View article: Injection-induced earthquakes on complex fault zones of the Raton Basin illuminated by machine-learning phase picker and dense nodal array
Injection-induced earthquakes on complex fault zones of the Raton Basin illuminated by machine-learning phase picker and dense nodal array Open
Seismicity in the Raton Basin over the past two decades suggests reactivation of basement faults due to wastewater injection. In the summer of 2018, 96 short-period three-component nodal instruments were installed in a highly active region…
View article: iMUSH Autocorrelation Reflectivity and Active Seismic Imaging of the Magma Plumbing System under Mount St Helens, Washington, USA
iMUSH Autocorrelation Reflectivity and Active Seismic Imaging of the Magma Plumbing System under Mount St Helens, Washington, USA Open
<p>We have developed a 3D model of the Mount St Helens (MSH) magmatic plumbing system extending from the upper magma storage zone (> 3.5 km bsl) to Moho depths (40-45 km) by combining results from 2D and 3D active source seismic t…
View article: Upper Crustal Structure and Magmatism in Southwest Washington: <i>V</i><sub><i>p</i></sub>, <i>V</i><sub><i>s</i></sub>, and <i>V</i><sub><i>p</i></sub>/<i>V</i><sub><i>s</i></sub> Results From the iMUSH Active‐Source Seismic Experiment
Upper Crustal Structure and Magmatism in Southwest Washington: <i>V</i><sub><i>p</i></sub>, <i>V</i><sub><i>s</i></sub>, and <i>V</i><sub><i>p</i></sub>/<i>V</i><sub><i>s</i></sub> Results From the iMUSH Active‐Source Seismic Experiment Open
Structural details of the crust play an important role in controlling the distribution of volcanic activity in arc systems. In southwest Washington, several different regional structures associated with accretion and magmatism have been in…
View article: The Rupture Process of the 2018 <i>M</i><sub><i>w</i></sub> 6.9 Hawaiʻi Earthquake as Imaged by a Genetic Algorithm‐Based Back‐Projection Technique
The Rupture Process of the 2018 <i>M</i><sub><i>w</i></sub> 6.9 Hawaiʻi Earthquake as Imaged by a Genetic Algorithm‐Based Back‐Projection Technique Open
An episode of unrest began at Kīlauea in April 2018 that produced both significant volcanic output and high rates of seismicity, including a M w 6.9 earthquake on 4 May 2018. In this study, we image the rupture process of this earthquake u…
View article: Genesis of Intermediate‐Depth and Deep Intraslab Earthquakes beneath Japan Constrained by Seismic Tomography, Seismicity, and Thermal Modeling
Genesis of Intermediate‐Depth and Deep Intraslab Earthquakes beneath Japan Constrained by Seismic Tomography, Seismicity, and Thermal Modeling Open
The distribution of intermediate‐depth and deep intraslab earthquakes with respect to subducting slabs offers a unique insight into seismogenesis at high pressures and temperatures that should inhibit brittle failure. This study constrains…
View article: Back-Projection Imaging of Earthquakes
Back-Projection Imaging of Earthquakes Open
Back-projection analysis of earthquakes is a type of array processing that images the source of seismic waves coherently recorded at stations throughout the seismic network. The method was developed following the magnitude 9.2 Sumatra-Anda…
View article: Magma reservoirs from the upper crust to the Moho inferred from high-resolution Vp and Vs models beneath Mount St. Helens, Washington State, USA
Magma reservoirs from the upper crust to the Moho inferred from high-resolution Vp and Vs models beneath Mount St. Helens, Washington State, USA Open
[EN]The size, frequency, and intensity of volcanic eruptions are strongly controlled by the volume and connectivity of magma within the crust. Several geophysical and geochemical studies have produced a comprehensive model of the magmatic …