Evaluation of the seismicity of the southern Great Basin and its relationship to the tectonic framework of the region

Abstract

Seismograph network recordings of local and regional earthquakes are being collected in the southern Great Basin to aid in the evaluation of the seismic hazard at a potential high-level radioactie waste repository site at Yucca Mountain in the southwestern Nevada Test Site. Data for 1522 earthquakes for the calendar years 1982 and 1983 are reported herein. In the period August, 1978 through December, 1983, 2800 earthquakes were located within and adjacent to the southern Great Basin seismograph network. Earthquake hypocenters, selected focal mechanisms, and other inferred seismicity characteristics are presented and discussed in relation to the local and regional geologic framework. 105 refs., 94 figs., 8 tabs.