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Brief Report for Central Virginia seismic zone (Class A) No. 2653
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citation for this record: Wheeler, R.L., compiler, 1998, Fault number 2653, Central Virginia seismic zone, in Quaternary fault and fold database of the United States: U.S. Geological Survey website, http://earthquakes.usgs.gov/regional/qfaults, accessed 11/24/2009 06:14 AM.
| Synopsis | The geologic evidence for Quaternary faulting in the Central Virginia seismic zone is reported at one site having a few, small, latest Holocene sand dikes, and at a second site several tens of kilometers away having a few, small, possible dikes of early Holocene or younger age (Obermeier and McNulty, 1998 #1872).
These liquefaction features are evidence of strong shaking, but they do not identify the specific fault or faults that caused an earthquake or earthquakes. Because individual Quaternary faults remain unidentified, it is not possible to define and measure specific attributes (azimuth, length, dip, etc.) for the Central Virginia seismic zone. |
| County(s) and State(s) | |
| AMS sheet(s) | Richmond |
| Physiographic province(s) | |
| Length (km) | 0 km. |
| Average strike | |
| Sense of movement | No data |
| Dip Direction | Unknown |
| Historic earthquake | |
| Most recent prehistoric deformation | Latest Quaternary (<15 ka) |
| Slip-rate category | Insufficient data |
| Date and Compiler(s) | 1998 Russell L. Wheeler, U.S. Geological Survey |
