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Custom Vs30 Mapping

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Estimates of site conditions from topographic slope

Vs30 (m/s) 180 240 300 360 490 620 760
Active Tectonic (m/m) 0.000032 0.0022 0.0063 0.018 0.05 0.1 0.138
Stable Shield (m/m) 0.000006 0.002 0.004 0.0072 0.013 0.018 0.025
Site Name 30 arc-sec
Northwest Point
Southeast Point
Slope Type Active Tectonic Stable Shield
Slope Values
Output Type ASCII Output     GMT Output     JPEG Output