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PACSAFE: Preliminary results from the Leg 1 deployment of Ocean Bottom Seismometers off Canada’s west coast
AGU 2024
tectonophysics | 13 december 2024
Andrew J. Schaeffer, Tiegan E. Hobbs, Tianhaozhe S...
The Pacific Coast Seismic Assessment for Faults and Earthquakes (PACSAFE) multi-year ocean bottom seismometer (OBS) program conducted its Leg 1 deploy...
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Contrasting Arc Magma Fluxes and Mantle Wedge Hydration in the Cascadia and SW Japan (Nankai) Subduction Zones
AGU 2024
tectonophysics | 12 december 2024
Simon M. Peacock, Michael G. Bostock
The Cascadia and SW Japan subduction zones are both characterized by warm incoming lithosphere and modest convergence rates of ~40 mm yr-1. Thermal-pe...
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The First Broadband Ocean-Bottom Seismometer Deployment in Eastern Canada: A Case Study on the Lower Laurentian Fan Seismic Zone
AGU 2024
seismology | 12 december 2024
Elahe Sirati, Alexandre P. Plourde, Mladen R. Nedi...
In November 2021, 12 broadband ocean-bottom seismometers (BOBS) were deployed for eight months on the lower Laurentian Fan (~4.5 km water depth), offs...
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Episodic Tremor and Slow Slip in the Cascadia Subduction Zone: Thinking Outside the Plane
AGU 2024
seismology | 12 december 2024
Charles G. Sammis, Michael G. Bostock
A major (Mw 6-7) slow slip earthquake and accompanying tectonic tremor occur as ETS (episodic tremor and slip) about every 14 months at a depth near 4...
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Improvements to Cross-Station Analysis of Tectonic Tremor
AGU 2024
seismology | 11 december 2024
Michael G. Bostock, Charles G. Sammis, Simon M. Pe...
Cross-station analysis of tectonic tremor, as introduced by John Armbruster for long (150 s) windows and extended by Allan Rubin to short (4 s) window...
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Toward building a continuous catalog of low-frequency earthquakes in the northern Cascadia subduction zone
AGU 2024
seismology | 11 december 2024
Caroline Mouchon, William B. Frank, Michael G. Bos...
The Cascadia subduction zone has the potential to produce major megathrust earthquakes, but is seismically quiescent relative to other subduction zone...
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Early-Stage Subduction Initiation at an Ocean-Continent Transform Plate Boundary: Crustal Structure of the Queen Charlotte Terrace
AGU 2024
seismology | 11 december 2024
Collin Brandl, Lindsay L. Worthington, Emily C. Ro...
Transform plate boundaries can be significant sources of seismicity, and those with a component of oblique convergence may be crucial for understandin...
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Incipient Subduction and Slip Partitioning at High Obliquity: The Haida Gwaii Plate Boundary
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
22 may 2024
Sarah Jaye C. Oliva, Michael G. Bostock, Andrew Ga...
Plate motion obliquity along the dominantly transform Queen Charlotte plate boundary (QCPB) peaks offshore Haida Gwaii. To investigate the effects ...