Map showing depth to bedrock of the Tacoma and part of the Centralia 30' x 60' quadrangles, Washington
Miscellaneous Field Studies Map
2265
By: Jane M. Buchanan-Banks and Donley S. Collins
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Abstract
The heavily populated Puget Sound region in the State of Washington has experienced moderate to large earthquakes in the recent past (Nuttli, 1952; Mullineaux and others, 1967). Maps showing thickness of unconsolidated sedimentary deposits are useful aids in delineating areas where damage to engineered structures can result from increased shaking resulting from these earthquakes. Basins containing thick deposits of unconsolidated materials can amplify earthquakes waves and cause far more damage to structures than the same waves passing through bedrock (Singh and others, 1988; Algermissen and others, 1985). Configurations of deep sedimentary basins can also cause reflection and magnification of earthquake waves in ways still not fully understood and presently under investigation (Frankel and Vidale, 1992).
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Map showing depth to bedrock of the Tacoma and part of the Centralia 30' x 60' quadrangles, Washington |
| Series title | Miscellaneous Field Studies Map |
| Series number | 2265 |
| DOI | 10.3133/mf2265 |
| Edition | - |
| Year Published | 1994 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | Plate 1: 37.20 x 52.65 inches; Plate 2: 40.98 x 25.40 inches |
| Country | United States |
| State | Washington |
| City | Centralia;Tacoma |
| Scale | 100000 |
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