Radiocarbon, Cesium-137, Grain Size, and X-ray Fluorescence Data for Tsunami Geology Investigation, Driftwood Bay, Umnak Island, Alaska (2018)
September 3, 2019
This dataset consists of nine tables that include radiocarbon dates, Cesium-137 activity, grain size measurements, and scanning X-ray fluorescence element intensity counts.
Citation Information
| Publication Year | 2019 |
|---|---|
| Title | Radiocarbon, Cesium-137, Grain Size, and X-ray Fluorescence Data for Tsunami Geology Investigation, Driftwood Bay, Umnak Island, Alaska (2018) |
| DOI | 10.5066/P9D7KLJV |
| Authors | Robert C Witter, Guy R Gelfenbaum, Reide Corbett, Angela CML Tan, SeanPaul M. La Selle |
| Product Type | Data Release |
| Record Source | USGS Asset Identifier Service (AIS) |
| USGS Organization | Alaska Science Center |
| Rights | This work is marked with CC0 1.0 Universal |
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Evidence for frequent, large tsunamis spanning locked and creeping parts of the Aleutian megathrust
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At the eastern end of the 1957 Andreanof Islands magnitude-8.6 earthquake rupture, Driftwood Bay (Umnak Island) and Stardust Bay (Sedanka Island) lie along presently locked and creeping parts of the Aleutian megathrust, respectively, based on satellite geodesy onshore. Both bays, located 200-km apart, face the Aleutian trench and harbor coastal evidence for tsunami inundation in 1957...
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