PNSN Seismometer sites; September, 1999



Figure 1. Seismograph stations operated by or recorded at the PNSN at the end of September, 1999. Red triangles indicate the locations of short-period vertical seismometers, while bright green asterisk symbols represent the locations of three-component broad-band seismometer installations. Purple hour-glass symbols denote the locations of three-component strong-motion seismometer stations.

University of Washington Dept. of Earth and Space Sciences, Box 351310 Seattle, WA, 98195-1310
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