| Table 1. Study areas and geologic setting |   |                                               |                    |                                      |                                                      |            |  |  |  |
|-------------------------------------------|---|-----------------------------------------------|--------------------|--------------------------------------|------------------------------------------------------|------------|--|--|--|
|                                           |
| Study Area                                |   | Type of                      Geologic Deposit | Average VS30 (m/s) | Location                             | Geologic Map Reference                               | No. of CPT |  |  |  |
| 1                                         |   | Alluvial fan                                  | 297                | Greater Oakland, CA                  | Witter and others (2006)                             | 85         |  |  |  |
| 2                                         | a | Alluvial fan                                  | 260                | Santa Clara Valley, CA               | Witter and others (2006)                             | 98         |  |  |  |
|                                           | b | Alluvial fan, young levee                     | 230                |                                      |                                                      | 25         |  |  |  |
| 3                                         | a | Beach ridge (Holocene)                        | 232                | Greater Charleston, SC               | Weems and others (unpub. data)                       | 30         |  |  |  |
|                                           | b | Beach ridge (Pleistocene)                     | 271                |                                      |                                                      | 70         |  |  |  |
| 4                                         |   | Beach ridge                                   | 239                | Upper Peninsula, MI                  | (aerial photos)                                      | 32         |  |  |  |
| 5                                         | a | Delta, topset beds                            | 222                | Sheyenne River, Richland County, ND  | Baker (1966)                                         | 32         |  |  |  |
|                                           | b | Delta, foreset beds                           | 146                |                                      |                                                      | 19         |  |  |  |
| 6                                         |   | Dunes, eolian                                 | 260                | Indiana Dunes National Lakeshore, IN | Thompson (1990)                                      | 25         |  |  |  |
| 7                                         | a | Floodplain (floodbasin)                       | 232                | Evansville,  IN                      | Fraser and Fishbaugh (1986); Moore and others (2009) | 25         |  |  |  |
|                                           | b | Floodplain (natural levee)                    | 236                |                                      |                                                      | 13         |  |  |  |
| 8                                         | a | Floodplain (point bar)                        | 217                | Mississippi River, AR, MO, and MS    | Saucier (1994b)                                      | 90         |  |  |  |
|                                           | b | Floodplain (abandoned channel)                | 197                |                                      |                                                      | 40         |  |  |  |
|                                           | c | Floodplain (floodbasin)                       | 201                |                                      |                                                      | 20         |  |  |  |  |
| 9                                         |   | Floodplain (point bar)                        | 234                | Ouachita River, AR                   | Saucier and Smith (1986)                             | 30         |  |  |  |  |
| 10                                        |   | Floodplain (point bar)                        | 241                | Red River, AR                        | Schultz and Krinitzsky (1950)                        | 30         |  |  |  |  |
| 11                                        |   | Floodplain (point bar)                        | 231                | Rio Grande, TX                       | Brown et al. (1980)                                  | 32         |  |  |  |  |
| 12                                        |   | Floodplain (point bar)                        | 237                | Wolf River, TN                       | Broughton (1999); Cox (2004); Van Arsdale (2004a, b) | 23         |  |  |  |  |
| 13                                        |   | Lacustrine                                    | 199                | Richland County, ND                  | Baker (1966)                                         | 25         |  |  |  |  |
| 14                                        |   | Lagoonal                                      | 190                | Brazoria and Matagorda Counties, TX  | Fisher and others (1972); McGowen and others (1976)  | 30         |  |  |  |  |
| 15                                        |   | Sandy artificial fill                         | 197                | Greater Oakland, CA                  | Witter and others (2006)                             | 81         |  |  |  |  |
| 16                                        |   | Valley train, Pvl1                            | 216                | Mississippi Valley, AR and MO        | Saucier (1994b)                                      | 37         |  |  |  |  |
|                                           |   | Valley train, Pvl2                            | 237                |                                      |                                                      | 35         |  |  |  |  |