Early deformation in melange terranes of the Ghost Rocks Formation, Kodiak Islands, Alaska

1984 ◽  
pp. 21-52 ◽  
Author(s):  
Tim Byrne
Keyword(s):  
Kodiak Islands

Blueschists of the Kodiak Islands, Alaska: An extension of the Seldovia schist terrane

Geology ◽  
1977 ◽  
Vol 5 (9) ◽  
pp. 529 ◽  
Author(s):  
J. R. Carden ◽  
W. Connelly ◽  
R. B. Forbes ◽  
D. L. Turner
Keyword(s):  
Kodiak Islands

Structural fabric of a melange, Kodiak Islands, Alaska

1978 ◽  
Vol 278 (5) ◽  
pp. 739-765 ◽  
Author(s):  
J. C. Moore ◽  
R. L. Wheeler
Keyword(s):  
Structural Fabric ◽  
Kodiak Islands

Paleogene evolution of the Kodiak Islands, Alaska: Consequences of ridge-trench interaction in a more southerly latitude

Tectonics ◽  
1983 ◽  
Vol 2 (3) ◽  
pp. 265-293 ◽  
Author(s):  
J. Casey Moore ◽  
Tim Byrne ◽  
Peter W. Plumley ◽  
Mary Reid ◽  
Helen Gibbons ◽  
...  
Keyword(s):  
Kodiak Islands

scholarly journals Fluid-rich damage zone of an ancient out-of-sequence thrust, Kodiak Islands, Alaska

Tectonics ◽  
2009 ◽  
Vol 28 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
Christen D. Rowe ◽  
Francesca Meneghini ◽  
J. Casey Moore
Keyword(s):  
Damage Zone ◽  
Kodiak Islands

scholarly journals Upper Plate Structure and Tsunamigenic Faults near the Kodiak Islands

2021 ◽  
Author(s):  
Marlon Ramos ◽  
Lee Liberty ◽  
Peter Haeussler ◽  
Robert Humphreys
Keyword(s):  
Fault Zone ◽  
Source Region ◽  
Earthquake Hazard ◽  
Tsunami Source ◽  
Tsunami Modelling ◽  
Plate Structure ◽  
Rupture Area ◽  
Seismicity Rates ◽  
Splay Faults ◽  
Kodiak Islands

The Kodiak Islands lie near the southern terminus of the 1964 Great Alaska earthquake rupture area and within the Kodiak subduction zone segment. Both local and trans-Pacific tsunamis were generated during this devastating megathrust event, but the local tsunami source region and the causative faults are poorly understood. We provide an updated view of the tsunami and earthquake hazard for the Kodiak Islands region through tsunami modelling and geophysical data analysis. Through seismic and bathymetric data, we characterize a regionally extensive sea floor lineament related to the Kodiak shelf fault zone, with focused uplift along a 50-km long portion of the newly named Ugak fault as the most likely source of the local Kodiak Islands tsunami in 1964. We present evidence of Holocene motion along the Albatross Banks fault zone, but suggest that this fault did not produce a tsunami in 1964. We relate major structural boundaries to active forearc splay faults, where tectonic uplift is collocated with gravity lineations. Differences in interseismic locking, seismicity-rates, and potential field signatures argue for different stress conditions at depth near presumed segment boundaries. We find that the Kodiak segment boundaries have a clear geophysical expression and are linked to upper plate structure and splay faulting. The tsunamigenic fault hazard is higher for the Kodiak shelf fault zone when compared to the nearby Albatross Banks fault zone, suggesting short travel paths and little tsunami warning time for nearby communities.

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