scholarly journals The Cascadia Subduction Zone and related subduction systems: seismic structure, intraslab earthquakes and processes, and earthquake hazards

2002 ◽  
Author(s):  
Stephen H. Kirby ◽  
Kelin Wang ◽  
Susan Dunlop
Keyword(s):  
Subduction Zone ◽  
Cascadia Subduction Zone ◽  
Seismic Structure ◽  
Earthquake Hazards

Earthquake Hazards on the Cascadia Subduction Zone

Science ◽  
1987 ◽  
Vol 236 (4798) ◽  
pp. 162-168 ◽  
Author(s):  
T. H. HEATON ◽  
S. H. HARTZELL
Keyword(s):  
Subduction Zone ◽  
Cascadia Subduction Zone ◽  
Earthquake Hazards

A new view into the Cascadia subduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin

Geology ◽  
1998 ◽  
Vol 26 (3) ◽  
pp. 199 ◽  
Author(s):  
Tom Parsons ◽  
Anne M. Trehu ◽  
James H. Luetgert ◽  
Kate Miller ◽  
Fiona Kilbride ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Cascadia Subduction Zone ◽  
Earthquake Hazards ◽  
Volcanic Arc ◽  
New View

scholarly journals Seismic structure of the southern Cascadia subduction zone and accretionary prism north of the Mendocino triple junction

1998 ◽  
Vol 103 (B11) ◽  
pp. 27207-27222 ◽  
Author(s):  
Sean P. S. Gulick ◽  
Anne M. Meltzer ◽  
Samuel H. Clarke
Keyword(s):  
Subduction Zone ◽  
Triple Junction ◽  
Accretionary Prism ◽  
Cascadia Subduction Zone ◽  
Seismic Structure ◽  
Mendocino Triple Junction

Crustal-Scale Seismic Structure From Trench to Forearc in the Cascadia Subduction Zone

2017 ◽  
Vol 122 (9) ◽  
pp. 7311-7328 ◽  
Author(s):  
Sampath Rathnayaka ◽  
Haiying Gao
Keyword(s):  
Subduction Zone ◽  
Cascadia Subduction Zone ◽  
Seismic Structure

scholarly journals Scientific teams analyze earthquake hazards of the Cascadia Subduction Zone

Eos ◽  
1997 ◽  
Vol 78 (15) ◽  
pp. 153 ◽  
Author(s):  
Ernst Flueh ◽  
Michael Fisher ◽  
David Scholl ◽  
Tom Parsons ◽  
Uri Ten Brink ◽  
...  
Keyword(s):  
Subduction Zone ◽  
Cascadia Subduction Zone ◽  
Earthquake Hazards

The northern Cascadia subduction zone at Vancouver Island: seismic structure and tectonic history

1990 ◽  
Vol 27 (3) ◽  
pp. 313-329 ◽  
Author(s):  
R. D. Hyndman ◽  
C. J. Yorath ◽  
R. M. Clowes ◽  
E. E. Davis
Keyword(s):  
Continental Shelf ◽  
Subduction Zone ◽  
Deep Ocean ◽  
Vancouver Island ◽  
Ocean Basin ◽  
Cascadia Subduction Zone ◽  
Accretionary Wedge ◽  
Seismic Structure ◽  
Tectonic History ◽  
Wide Range

The structure and Tertiary tectonic history of the northern Cascadia subduction zone have been delineated by a series of new multichannel seismic lines acquired across the continental shelf to the deep sea, combined with adjacent land multichannel seismic data and results from a wide range of other geophysical and geological studies. The top of the downgoing oceanic crust is imaged for a remarkable distance downdip from the deep ocean basin to a depth of 40 km beneath Vancouver Island. The reflection depths are in good agreement with seismic refraction models and Benioff–Wadati seismicity. Two broad reflective bands imaged as dipping gently landward at depths of about 15 and 30 km on the land lines merge to a single reflector band offshore. They may represent underplated oceanic material or, alternatively, they may not be structural but may be zones of contrasting physical properties, perhaps representing trapped fluid. Two narrow terranes, the Mesozoic marine sedimentary Pacific Rim Terrane and the Eocene marine volcanic Crescent Terrane, have been thrust beneath, and accreted to, the margin in the Eocene, about 42 Ma, near the start of the present phase of subduction. They provide a landward-dipping backstop to the large sediment wedge accreted since that time. The deformation front is characterized by mainly landward-dipping thrust faults that cut close to basement. This result and the mass balance of the incoming sediment compared with that present in the accreted wedge suggest that there is little subduction of sediment into the mantle. The Tofino Basin sediments, up to 4 km in thickness, have been deposited on the continental shelf over the accreted terranes and the developing accretionary wedge.

scholarly journals Addressing Cascadia Subduction Zone Great Earthquake Recurrence

Eos ◽  
2019 ◽  
Vol 100 ◽  
Author(s):  
Lydia Staisch ◽  
Maureen Walton ◽  
Rob Witter
Keyword(s):  
Subduction Zone ◽  
Working Group ◽  
Cascadia Subduction Zone ◽  
Great Earthquake ◽  
Earthquake Hazards ◽  
Earthquake Recurrence ◽  
Fort Collins

USGS Powell Center Cascadia Earthquake Hazards Working Group; Fort Collins, Colorado, 25–29 March 2019

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