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Science 4 December 1992:
Vol. 258. no. 5088, pp. 1617 - 1620
DOI: 10.1126/science.258.5088.1617
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Articles

Paleoearthquakes in the Puget Sound Region Recorded in Sediments from Lake Washington, U.S.A

Robert E. Karlin 1 and Sally E. B. Abella 2

1 Mackay School of Mines, University of Nevada-Reno, Mail Stop 168, Reno, NV 89557
2 Zoology Department, University of Washington, NJ-15, Seattle, WA 98195

Holocene sediments in Lake Washington contain a series of turbidites that were episodically deposited throughout the lake. The magnetic signatures of these terrigenous layers are temporally and areally correlatable. Large earthquakes appear to have triggered slumping on the steep basin walls and landslides in the drainage area, resulting in turbidite deposition. One prominent turbidite appears to have been deposited about 1100 years ago as the result of a large earthquake. Downcore susceptibility patterns suggest that near-simultaneous slumping occurred in at least three separate locations, two of which now contain submerged forests. Several other large earthquakes may have occurred in the last 3000 years.

Submitted on July 24, 1992
Accepted on November 6, 1992


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Folklore and earthquakes: Native American oral traditions from Cascadia compared with written traditions from Japan.
R. S. Ludwin, G. J. Smits, D. Carver, K. James, C. Jonientz-Trisler, A. D. McMillan, R. Losey, R. Dennis, J. Rasmussen, A. De Los Angeles, et al. (2007)
Geological Society, London, Special Publications 273, 67-94
   Abstract »    PDF »
Holocene landslides and a 3500-year record of Pacific Northwest earthquakes from sediments in Lake Washington.
R. E. Karlin, M. Holmes, S.E.B. Abella, and R. Sylwester (2004)
GSA Bulletin 116, 94-108
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Holocene strath terraces, climate change, and active tectonics: The Clearwater River basin, Olympic Peninsula, Washington State.
K. W. Wegmann and F. J. Pazzaglia (2002)
GSA Bulletin 114, 731-744
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Geologic evidence of earthquakes at the Snohomish delta, Washington, in the past 1200 yr.
J. Bourgeois and S. Y. Johnson (2001)
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Diatoms as an aid in identifying late-Holocene tsunami deposits.
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Detection of Large Prehistoric Earthquakes in the Pacific Northwest by Microfossil Analysis.
R. W. Mathewes, R. W. Mathewes, and J. J. Clague (1994)
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Estimating Potential Capital Losses from Large Earthquakes.
P. N. Nemetz and K. Dushnisky (1994)
Urban Stud 31, 99-121
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Postglacial Offset Along the Seattle Fault.
R. M. Thorson and R. M. Thorson (1993)
Science 260, 825-826
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Paleoseismology: A Search for Ancient Earthquakes in Puget Sound.
J. Adams and J. Adams (1992)
Science 258, 1592-1593
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Abrupt Uplift Within the Past 1700 Years at Southern Puget Sound, Washington.
R. C. Bucknam, R. C. Bucknam, E. Hemphill-Haley, and E. B. Leopold (1992)
Science 258, 1611-1614
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)