Seismic Impact Zone

{
  "id": "MLC-T-ENV-025138",
  "term": "Seismic Impact Zone",
  "field": "Environment",
  "definition": "1. Area that has a 10 percent or greater probability that the horizontal ground level acceleration of the rock in the area exceeds 0.10 gravity once in 250 years.\n\n2. Area with a ten percent or greater probability that the maximum horizontal acceleration in lithified earth material, expressed as a percentage of the earth's gravitational pull (g), will exceed 0.10g in 250 years.",
  "references": [
    "40 CFR 503.21 (CFR 2013)",
    "40 CFR 258.14 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/seismic-impact-zone/"
}