Publications
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A massive rock and ice avalanche caused the 2021 disaster at Chamoli, Indian Himalaya A massive rock and ice avalanche caused the 2021 disaster at Chamoli, Indian Himalaya
On 7 Feb 2021, a catastrophic mass flow descended the Ronti Gad, Rishiganga, and Dhauliganga valleys in Chamoli, Uttarakhand, India, causing widespread devastation and severely damaging two hydropower projects. Over 200 people were killed or are missing. Our analysis of satellite imagery, seismic records, numerical model results, and eyewitness videos reveals that ~27x106 m3 of rock and...
Authors
D. Shugar, Mylene Jacquemart, D. Shean, S. Bhushan, K. Upadhyay, A. Sattar, W. Schwanghart, Sara McBride, M. Van Wyk de Vries, M. Mergili, A. Emmer, C. Deschamps-Berger, M. McDonnell, R. Bhambri, S. Allen, E. Berthier, J.L. Carrivick, J.J. Clague, M. Dokukin, S.A. Dunning, Herbert Frey, S. Gascoin, U. K. Haritashya, C. Huggel, A. Kaab, J.S. Kargel, J.L. Kavanaugh, P. Lacroix, D. N. Petley, S. Rupper, M.F. Azam, S.J. Cook, A.P. Dimri, M. Eriksson, D. Farinotti, J. Fiddes, K.R. Gnyawali, S. Harrison, M.K. Jha, M. Koppes, S. Kumar, S. Leiness, U. Majeed, S. Mai, A. Muhuri, J. Noetzli, F. Paul, I. Rashid, K. Sain, J. Steiner, F. Ugalde, C.S. Watson, M.J. Westoby
A near-real-time model for estimating probability of road obstruction due to earthquake-triggered landslides A near-real-time model for estimating probability of road obstruction due to earthquake-triggered landslides
Coseismic landslides are a major source of transportation disruption in mountainous areas, but few approaches exist for rapidly estimating impacts to road networks. We develop a model that links the U.S. Geological Survey (USGS) near-real-time earthquake-triggered landslide hazard model with Open Street Map (OSM) road network data to rapidly estimate segment-level obstruction risk...
Authors
B.H. Wilson, Kate Allstadt, Eric Thompson
Evidence for latent crustal fluid injection transients in southern California from long-duration earthquake swarms Evidence for latent crustal fluid injection transients in southern California from long-duration earthquake swarms
Earthquake swarms are manifestations of aseismic driving processes deep in the crust. We examine the spatiotemporal distribution of aseismic processes in Southern California using a 12-years catalog of swarms derived with deep learning algorithms. In a core portion of the plate boundary region, which is not associated with elevated heat flow, we identify 92 long-duration swarms ranging...
Authors
Zachary Ross, Elizabeth Cochran
Detailed traveltime tomography and seismic catalog around the 2019 Mw7.1 Ridgecrest, California, earthquake using dense rapid-response seismic data Detailed traveltime tomography and seismic catalog around the 2019 Mw7.1 Ridgecrest, California, earthquake using dense rapid-response seismic data
We derive a detailed earthquake catalogue and Vp, Vs and Vp/Vs models for the region around the 2019 Mw 6.4 and Mw7.1 Ridgecrest, California, earthquake sequence using data recorded by rapid-response, densely deployed sensors following the Ridgecrest main shock and the regional network. The new catalogue spans a 4-month period, starting on 1 June 2019, and it includes nearly 95 000...
Authors
Malcolm White, Hongjian Fang, Rufus Catchings, Mark Goldman, Jamison Steidl, Yehuda Ben-Zion
NGA-East ground-motion characterization model Part II: Implementation and hazard implications NGA-East ground-motion characterization model Part II: Implementation and hazard implications
As a companion article to Goulet et al., we describe implementation of the NGA-East ground motion characterization (GMC) model in probabilistic seismic hazard analysis (PSHA) for sites in the Central and Eastern United States (CEUS). We present extensions to the EPRI/DOE/NRC seismic source characterization (SSC) model for the CEUS needed for full implementation of NGA-East. Comparisons...
Authors
Robert Youngs, Christine Goulet, Yousef Bozorgnia, Nicolas Kuehn, Linda Al Atik, Robert Graves, Gail Atkinson
Online-coupling of widely-ranged timescales to model coral reef development Online-coupling of widely-ranged timescales to model coral reef development
The increasing pressure on Earth's ecosystems due to climate change is becoming more and more evident and the impacts of climate change are especially visible on coral reefs. Understanding how climate change interacts with the physical environment of reefs to impact coral growth and reef development is critically important to predicting the persistence of reefs into the future. In this...
Authors
Gijs Hendrickx, Peter Herman, Jasper Dijkstra, Curt Storlazzi, Lauren Toth
Impacts of sediment removal from and placement in coastal barrier island systems Impacts of sediment removal from and placement in coastal barrier island systems
Executive Summary On June 24, 2019, Congressman Raul Grijalva of Arizona, Chair of the House Committee on Natural Resources, sent a letter to the directors of the U.S. Fish and Wildlife Service and the U.S. Geological Survey to request their assistance in answering questions regarding coastal sediment resource management within the Coastal Barrier Resources System as defined by the...
Authors
Jennifer Miselis, James Flocks, Sara Zeigler, Davina Passeri, David Smith, Jill Bourque, Christopher Sherwood, Christopher Smith, Daniel Ciarletta, Kathryn Smith, Kristen Hart, David C. Kazyak, Alicia Berlin, Bianca Prohaska, Teresa Calleson, Kristi Yanchis
Short‐period surface‐wave tomography in the continental United States— A resource for research Short‐period surface‐wave tomography in the continental United States— A resource for research
The variation of phase and group velocity dispersion of Love and Rayleigh waves was determined for the continental United States and adjacent Canada. By processing ambient noise from the broadband channels of the Transportable Array (TA) of USArray and several Program for the Array Seismic Studies of the Continental Lithosphere experiments and using some earthquake recordings, the effort...
Authors
R. Herrmann, C. J. Ammon, Harley Benz, A. Aziz-Zanjani, J. Boschelli
A roadmap for planetary caves science and exploration A roadmap for planetary caves science and exploration
While researchers have pondered the possibility of extraterrestrial caves for more than 50 years, we have now entered the incipient phase of planetary caves exploration. Our knowledge of planetary caves varies from body to body. Earth represents the most advanced level of exploration, but many unanswered questions remain. Beyond Earth, identification of possible caves is most advanced...
Authors
Timothy Titus, J. Wynne, Michael Malaska, Ali-akbar Agha-Mohammadi, Peter Buhler, E. Alexander, James Ashley, Armando Azua-Bustos, Penelope Boston, Debra Buczkowski, Leroy Chiao, Glen Cushing, John DeDecker, Pablo de Leon, Cansu Demirel-Floyd, Jo de Waele, Alberto Fairen, Amos Frumkin, Gary Harris, Heather Jones, Laura Kerber, Erin Leonard, Richard Leveille, Kavya Manyapu, Matteo Massironi, Ana Miller, John Mylroie, Bogdan Onac, Scott Parazynski, Cynthia Phillips, Charity Phillips-Lander, Thomas Prettyman, Haley Sapers, Francesco Sauro, Norbert Schorghofer, Dirk Schulze-Makuch, Jennifer Scully, Kyle Uckert, Robert Wagner, William Whittaker, Kaj Williams, Uland Wong
A framework for evaluating earthquake early warning for an infrastructure network: An idealized case study of a northern California rail system A framework for evaluating earthquake early warning for an infrastructure network: An idealized case study of a northern California rail system
Earthquake early warning (EEW) systems provide a few to tens of seconds of warning before shaking hits a site. Despite the recent rapid developments of EEW systems around the world, the optimal alert response strategy and the practical benefit of using EEW are still open-ended questions, especially in areas where EEW systems are new or have not yet been deployed. Here, we use a case...
Authors
Sarah Minson, Elizabeth Cochran, Stephen Wu, Shunta Noda
A survey of storm-induced seaward-transport features observed during the 2019 and 2020 hurricane seasons A survey of storm-induced seaward-transport features observed during the 2019 and 2020 hurricane seasons
Hurricanes are known to play a critical role in reshaping coastlines, but often only impacts on the open ocean coast are considered, ignoring seaward-directed forces and responses. The identification of subaerial evidence for storm-induced seaward transport is a critical step towards understanding its impact on coastal resiliency. The visual features, found in the National Oceanic and...
Authors
Jin-Si Over, Jenna A. Brown, Christopher Sherwood, Christie Hegermiller, Phillipe Alan Wernette, Andrew Ritchie, Jonathan Warrick
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Hurricane Delta, Hurricane Dorian, Hurricane Isaias, Hurricane Laura, Hurricanes
Material properties and triggering mechanisms of an andesitic lava dome collapse at Shiveluch Volcano, Kamchatka, Russia, revealed using the finite element method Material properties and triggering mechanisms of an andesitic lava dome collapse at Shiveluch Volcano, Kamchatka, Russia, revealed using the finite element method
Shiveluch volcano (Kamchatka, Russia) is an active andesitic volcano with a history of explosive activity, dome extrusion, and structural collapse during the Holocene. The most recent major (> 1 km3) dome collapse occurred in November 1964, producing a ~ 1.5 km3 debris avalanche that traveled over 15 km from the vent and triggered a phreatic explosion followed by a voluminous (~ 0.8 km3)...
Authors
Cory Wallace, Lauren Schaefer, Marlène C. Villeneuve