Custom Vs30 Mapping

Select a Predefined Map and Grid

Estimates of site conditions from topographic slope

Vs30 (m/s) 180 240 300 360 490 620 760
Active Tectonic (m/m) 0.0003 0.0035 0.010 0.018 0.05 0.10 0.14
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