Conference Papers
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Response of the tallest California building during the Mw7.1 July 5, 2019 Ridgecrest, California earthquake Response of the tallest California building during the Mw7.1 July 5, 2019 Ridgecrest, California earthquake
The 73-story Wilshire Grand in downtown Los Angeles is the recently constructed tallest building in California. It is designed in conformance with performance-based design procedures. The lateral load resisting system of the building is designed with concrete core shear walls, three outriggers with buckling restrained braces (BRBs) located along the height and two three-story truss-belt...
Authors
Mehmet Celebi, S. F. Ghahari, Hamid Haddadi, Ertugrul Taciroglu
An analysis of Twitter responses to the 2019 Ridgecrest Earthquake sequence An analysis of Twitter responses to the 2019 Ridgecrest Earthquake sequence
Previous research has shown that online social networks can provide valuable insights regarding collective human responses to extreme natural events, such as earthquakes. Most previous studies focused on one large earthquake, while the 2019 Ridgecrest earthquakes involved two significant earthquakes occurring within a short period of time (a M6.4 foreshock on July 4 and a M7.1 mainshock...
Authors
Tao Ruan, Qingkai Kong, Yawen Zhang, Sara K. McBride, Qin Lv
Biology characterization breakout report Biology characterization breakout report
The primary goal of the biology characterization breakout group was to identify the strategies, tools, data priorities, and key partnerships needed to conduct baseline biological characterizations of deep-sea benthic environments across the U.S. EEZ in the Pacific. Discussions focused primarily on priorities for the characterization of deep-water (>200-meter depths) benthic biological...
Authors
Amanda Demopoulos, Daniel Wagner, Amy Baco-Taylor, David Itano, Diva Amon, Erik E. Cordes, Lisa Levin, Peter H. Edwards, Randall Kosaki, Shirley Pomponi, Steve Gittings
Evaluating and optimizing the use of logistic regression for tree mortality models in the First Order Fire Effects Model (FOFEM) Evaluating and optimizing the use of logistic regression for tree mortality models in the First Order Fire Effects Model (FOFEM)
Wildland fires burn millions of forested hectares annually around the world, affecting biodiversity, carbon storage, hydrologic processes, and ecosystem services largely through fire-induced tree mortality (Bond-Lamberty et al. 2007; Dantas et al. 2016). In spite of this widespread importance, the underlying mechanisms of fire-caused tree mortality remain poorly understood, (Hood et al...
Authors
C. Alina Cansler, Sharon Hood, J. Morgan Varner, Phillip J. van Mantgem
Extension directions in the Colorado River extensional corridor compared to fragmentation of a structurally disrupted caldera in the Sacramento Mountains, southeastern California Extension directions in the Colorado River extensional corridor compared to fragmentation of a structurally disrupted caldera in the Sacramento Mountains, southeastern California
The northwest trend of the southern Colorado River extensional corridor in the southwestern USA veers northward between 34° and 35° north latitude. The tilt axes of early Miocene west-tilted volcanic strata in the west-central Sacramento Mountains mirror this bend. Steeply dipping early Miocene strata and volcanics north and south of the bend indicate the strong respectively westward to
Authors
Keith A. Howard, Charles A. Ferguson
He-CO2-N2 isotope and relative abundance characterization of geothermal fluids from the Ethiopian Rift He-CO2-N2 isotope and relative abundance characterization of geothermal fluids from the Ethiopian Rift
We report He-CO2-N2 isotopic and relative abundances in free gases and dissolved gas phase of geothermal fluids from the Ethiopian Rift. Fluid samples were collected from ~30 geothermal localities from three key regions throughout rifted and non-rifted areas of Ethiopia. The majority of samples, including off-rift samples, indicate a strong contribution of mantle-derived He-C-N to the...
Authors
S. A. Halldorsson, P. Scarsi, T. Abebe, T. Evans, Justin T. Kulongoski, P. R. Castillo, P. H. Barry