@article {2748,
	title = {Influence of the megathrust earthquake cycle on upper-plate deformation in the Cascadia forearc of Washington State, USA},
	journal = {Geology},
	volume = {45},
	year = {2017},
	month = {Jan-11-2017},
	pages = {1051 - 1054},
	abstract = {The influence of subduction zone earthquake cycle processes on permanent forearc deformation is poorly understood. In the Cascadia subduction zone forearc of Washington State, USA, deformed and incised fluvial terraces serve as archives of longer-term (103{\textendash}104 yr) strain manifest as both fluvial incision and slip on upper-plate faults. We focus on comparing these geomorphic records in the Wynoochee River valley in the southern Olympic Mountains with short-term (101 yr) deformation driven by interseismic subduction zone coupling. We use optically stimulated luminescence dating and high-resolution elevation data to characterize strath terrace incision and differential uplift across the Canyon River fault, which cuts Wynoochee River terraces. This analysis demonstrates reverse slip rates of \~{}0.1{\textendash}0.3 mm/yr over the past \~{}12{\textendash}37 k.y., which agree with rates predicted by a GPS-constrained boundary element model of interseismic stress from Cascadia subduction zone coupling. Similarly, model-predicted patterns of interseismic uplift mimic the overall pattern of incision in the lower Wynoochee River valley, as revealed by strath elevations dated at 14.1 {\textpm} 1.2 ka. Agreement between modeled short-term and observed long-term records of forearc strain suggests that interseismic stress drives slip on upper-plate faults and fluvial incision in Cascadia. Consistency over multiple time scales may indicate relative stability in spatial patterns of subduction zone coupling over at least \~{}104 yr intervals.},
	issn = {0091-7613},
	doi = {10.1130/G39070.110.1130/2017323},
	url = {https://digitalcommons.usu.edu/geology_facpub/523/},
	author = {Delano, Jaime E. and Amos, Colin B. and Loveless, John P. and Rittenour, Tammy M. and Sherrod, Brian L. and Lynch, Emerson M.}
}
@article {2591,
	title = {Diverse rupture modes for surface-deforming upper-plate earthquakes in the southern Puget Lowland of Washington State},
	journal = {Geosphere},
	volume = {10},
	year = {2014},
	month = {Jan-01-2014},
	pages = {769},
	abstract = {Earthquake prehistory of the southern Puget Lowland, in the north-south compressive regime of the migrating Cascadia forearc, reflects diverse earthquake rupture modes with variable recurrence. Stratigraphy and Bayesian analyses of previously reported and new 14C ages in trenches and cores along backthrust scarps in the Seattle fault zone restrict a large earthquake to 1040{\textendash}910 cal yr B.P. (2σ), an interval that includes the time of the M 7{\textendash}7.5 Restoration Point earthquake. A newly identified surface-rupturing earthquake along the Waterman Point backthrust dates to 940{\textendash}380 cal yr B.P., bringing the number of earthquakes in the Seattle fault zone in the past 3500 yr to 4 or 5. Whether scarps record earthquakes of moderate (M 5.5{\textendash}6.0) or large (M 6.5{\textendash}7.0) magnitude, backthrusts of the Seattle fault zone may slip during moderate to large earthquakes every few hundred years for periods of 1000{\textendash}2000 yr, and then not slip for periods of at least several thousands of years. Four new fault scarp trenches in the Tacoma fault zone show evidence of late Holocene folding and faulting about the time of a large earthquake or earthquakes inferred from widespread coseismic subsidence ca. 1000 cal yr B.P.; 12 ages from 8 sites in the Tacoma fault zone limit the earthquakes to 1050{\textendash}980 cal yr B.P. Evidence is too sparse to determine whether a large earthquake was closely predated or postdated by other earthquakes in the Tacoma basin, but the scarp of the Tacoma fault was formed by multiple earthquakes. In the northeast-striking Saddle Mountain deformation zone, along the western limit of the Seattle and Tacoma fault zones, analysis of previous ages limits earthquakes to 1200{\textendash}310 cal yr B.P. The prehistory clarifies earthquake clustering in the central Puget Lowland, but cannot resolve potential structural links among the three Holocene fault zones.},
	issn = {1553040X},
	doi = {10.1130/GES00967.110.1130/GES00967.S1},
	url = {https://pubs.geoscienceworld.org/geosphere/article/10/4/769-796/132175},
	author = {Nelson, Alan R. and Personius, Stephen F. and Sherrod, Brian L. and Kelsey, Harvey M. and Johnson, Samuel Y. and Bradley, Lee-Ann and Wells, Ray E.}
}
@article {327,
	title = {Earthquakes generated from bedding plane-parallel reverse faults above an active wedge thrust, Seattle fault zone},
	journal = {Geological Society of America Bulletin},
	volume = {120},
	year = {2008},
	note = {id: 2019; PT: J; UT: WOS:000260737900015},
	pages = {1581-1597},
	abstract = {A key question in earthquake hazard analysis is whether individual faults within fault zones represent independent seismic sources. For the Seattle fault zone, an upper plate structure within the Cascadia convergent margin, evaluating seismic hazard requires understanding how north-side-up, bedding-plane reverse faults, which generate late Holocene fault scarps, interact with the north-vergent master-ramp thrust and overlying backthrust of the fault zone. A regional uplift at A.D. 900-930 involved an earthquake that nucleated at depth and included slip on both the master-ramp thrust and the backthrust. This earthquake also included slip on some of the},
	issn = {0016-7606},
	doi = {10.1130/B26282.1},
	author = {Kelsey, Harvey M. and Sherrod, Brian L. and Nelson, Alan R. and Brocher, Thomas M.}
}
