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Title: Virginia Regional Seismic Network. Final report (1986--1992)

In 1986, the Virginia Regional Seismic Network was one of the few fully calibrated digital seismic networks in the United States. Continued operation has resulted in the archival of signals from 2,000+ local, regional and teleseismic sources. Seismotectonic studies of the central Virginia seismic zone showed the activity in the western part to be related to a large antiformal structure while seismicity in the eastern portion is associated spatially with dike swarms. The eastern Tennessee seismic zone extends over a 300x50 km area and is the result of a compressive stress field acting at the intersection between two large crustal blocks. Hydroseismicity, which proposes a significant role for meteoric water in intraplate seismogenesis, found support in the observation of common cyclicities between streamflow and earthquake strain data. Seismic hazard studies have provided the following results: (1) Damage areas in the eastern United States are three to five times larger than those observed in the west. (2) Judged solely on the basis of cataloged earthquake recurrence rates, the next major shock in the southeast region will probably occur outside the Charleston, South Carolina area. (3) Investigations yielded necessary hazard parameters (for example, maximum magnitudes) for several sites in the southeast. Basicmore » to these investigations was the development and maintenance of several seismological data bases.« less
Authors:
; ; ;  [1]
  1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (US). Seismological Observatory
Publication Date:
OSTI Identifier:
10176400
Report Number(s):
NUREG/CR--6058
ON: TI93017989; TRN: 93:002901
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jul 1993
Research Org:
Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering; Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Seismological Observatory
Sponsoring Org:
Nuclear Regulatory Commission, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; EARTHQUAKES; SEISMIC DETECTION; RISK ASSESSMENT; TENNESSEE; SEISMICITY; VIRGINIA; PROGRESS REPORT; SEISMIC ARRAYS; NUCLEAR POWER PLANTS 220501; SITING