Results 1 to 10 of about 12,078 (235)

A new chronology for tsunami deposits prior to the 1700 CE Cascadia earthquake from Vancouver Island, Canada [PDF]

Scientific Reports, 2022
Coastal deposits at Tofino, Ucluelet, and Port Alberni in Vancouver Island along the Cascadia subduction zone were re-examined to improve the earthquake history of the southwest coast of Canada.
Koichiro Tanigawa, Yuki Sawai, Peter Bobrowsky, David Huntley, James Goff, Tetsuya Shinozaki, Kazumi Ito   +6 more
doaj   +2 more sources

Ecological contexts of diving behavior in Hawaiian false killer whales [PDF]

Movement Ecology
Background Predator movements vary across different ecological contexts, offering valuable insights into their foraging strategies. However, studying these contexts in marine predators is challenging due to the difficulty of observing them and their prey
Michaela A. Kratofil, Jacquelyn F. Shaff, Holly K. Hoffbauer, Mauricio Cantor, Marie C. Hill, Robin W. Baird   +5 more
doaj   +2 more sources

Low Resighting Rate of Entangled Humpback Whales Within the California, Oregon, and Washington Region Based on Photo-Identification and Long-Term Life History Data

Frontiers in Marine Science, 2022
Bycatch, commonly referred to as entanglement, is a leading source of human-caused mortality of baleen whales. A better understanding of the individuals that survive (or perish from) their entanglement can help reduce the risk of bycatch by informing ...
Jennifer Tackaberry, Elana Dobson, Kiirsten Flynn, Ted Cheeseman, Ted Cheeseman, John Calambokidis   +5 more
doaj   +1 more source

Blue Whale Body Condition Assessed Over a 14-Year Period in the NE Pacific: Annual Variation and Connection to Measures of Ocean Productivity

Frontiers in Marine Science, 2022
Large marine mammals can serve as an indicator of the overall state of the environment due to their apex position in marine food webs and their functions as sentinels of change.
Rachel Wachtendonk, Rachel Wachtendonk, John Calambokidis, Kiirsten Flynn   +3 more
doaj   +1 more source

Complex Structure in the Nootka Fault Zone Revealed by Double‐Difference Tomography and a New Earthquake Catalog

Geochemistry, Geophysics, Geosystems, 2022
We employ an automatic earthquake detection algorithm to seismic waveforms recorded between the years 2000 and 2020 in southwest British Columbia. 32,121 events which possess at least three paired P‐ and S‐wave arrival times are located, compared to 21 ...
Reid J. Merrill, Michael G. Bostock, Simon M. Peacock, Andrew J. Schaeffer, Steven W. Roecker   +4 more
doaj   +1 more source

Mid-Miocene to Present Upper-Plate Deformation of the Southern Cascadia Forearc: Effects of the Superposition of Subduction and Transform Tectonics

Frontiers in Earth Science, 2022
The southern Cascadia forearc undergoes a three-stage tectonic evolution, each stage involving different combinations of tectonic drivers, that produce differences in the upper-plate deformation style.
Kirsty A. McKenzie, Kevin P. Furlong, Eric Kirby   +2 more
doaj   +1 more source

The Cascadia Initiative: A Sea Change In Seismological Studies of Subduction Zones [PDF]

Oceanography, 2014
Increasing public awareness that the Cascadia subduction zone in the Pacific Northwest is capable of great earthquakes (magnitude 9 and greater) motivates the Cascadia Initiative, an ambitious onshore/offshore seismic and geodetic experiment that takes ...
Douglas R. Toomey, Richard M. Allen, Samuel W. Bell, Peter D. Bromirski, Richard L. Carlson, Xiaowei Chen, John A. Collins, Robert P. Dziak, Brent Evers, Donald W. Forsyth, Peter Gerstoft, Emilie E.E. Hooft, Dean Livelybrooks, Jessica A. Lodewyk, Douglas S. Luther, Jeffrey J. McGuire, Susan Y. Schwartz, Maya Tolstoy, Anne M. Trehu, Michelle Weirathmueller, William S.D. Wilcox   +20 more
doaj   +1 more source

Sulfur loss from subducted altered oceanic crust and implications for mantle oxidation [PDF]

, 2020
© The Author(s), [year]. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Walters, J. B., Cruz-Uribe, A. M., & Marschall, H. R.
Cruz‐Uribe, Alicia M., Marschall, Horst R., Walters, Jesse B.   +2 more
core   +1 more source

Impact‐Induced Seafloor Deformation From Submarine Landslides: Diagnostic of Slide Velocity?

Geophysical Research Letters, 2023
Submarine landslides shape continental margins, transfer massive amounts of sediment downslope, and can generate deadly and destructive tsunamis. Submarine landslides are common globally, yet constraining hazard potential of future events is limited by a
Brandi L. Lenz, W. Ashley Griffith, Derek E. Sawyer   +2 more
doaj   +1 more source

Statistical characterization of full-margin rupture recurrence for Cascadia subduction zone using event time resampling and Gaussian mixture model

Geoscience Letters, 2023
Earthquake occurrence modeling of large subduction events involves significant uncertainty, stemming from the scarcity of geological data and inaccuracy of dating techniques.
Katsuichiro Goda
doaj   +1 more source