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NEHRP Site Classes - Geologic Hazard Ordinance: Earthquake Hazard Component - NEHRP Seismic Site Classes. National Earthquake Hazards Reduction Program (NEHRP) seismic site classes categorizes the potential for enhanced or amplified ground shaking and range from A (the best - hard rock) to F (the worst - soft clay or swamp muck). NEHRP seismic site classes provide a general guide to areas where earthquake shaking will be the strongest and where the potential damage to buildings and other structures may be elevated because of soil effects. Please note that it is only a general guide, and does not incorporate other factors affecting the actual severity of ground shaking, such as earthquake size or the distance of the area in question from the earthquake's focus. Refer to Clark County Geologic Hazard Ordinance for more details (Clark County Code Section 40.430). |
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NEHRP Site Classes - Geologic Hazard Ordinance: Earthquake Hazard Component - NEHRP Seismic Site Classes. National Earthquake Hazards Reduction Program (NEHRP) seismic site classes categorizes the potential for enhanced or amplified ground shaking and range from A (the best - hard rock) to F (the worst - soft clay or swamp muck). NEHRP seismic site classes provide a general guide to areas where earthquake shaking will be the strongest and where the potential damage to buildings and other structures may be elevated because of soil effects. Please note that it is only a general guide, and does not incorporate other factors affecting the actual severity of ground shaking, such as earthquake size or the distance of the area in question from the earthquake's focus. Refer to Clark County Geologic Hazard Ordinance for more details (Clark County Code Section 40.430). |
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WA Dept of Natural Resources |
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For complete metadata details see: https://gis.clark.wa.gov/gishome/Metadata/#/layer/1341 |
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Clark County does not warrant the accuracy, reliability, or timeliness of any information in this system, and shall not be held liable for losses caused by using this information. Portions of this information may not be current or accurate. |
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NEHRP Site Classes |
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["nehrp geohaz hazard earthquake geologic annexation"] |
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en-US |
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