The primary goal of U.S. Geological Survey (USGS) Natural Hazards Response is to ensure that the disaster response community has access to timely, accurate, and relevant geospatial products, imagery, and services during and after an emergency event. Seismic Zone Factor (Z): There are five seismic zones consideration and defined in table 16-I of UBC-97 code. For example, if the seismic signal riding along the wavefront is at a relatively high frequency, then the Fresnel zone is relatively narrow. In seismology, a seismic zone or seismic belt is an area of seismicity potentially sharing a common cause. In seismology, a seismic zone or seismic belt is an area of seismicity potentially sharing a common cause. Where the alternate simplified design procedure of Section 12.14 is used, the Seismic Design Category is permitted to be determined from Table 11.6-1 alone, using the value of SDS determined in Section 12.14.8.1. Ground shaking is the primary cause of earthquake damage to man-made structures. How to use seismic in a sentence. The edges where these plates move against one another are the location of interplate earthquakes that produce the seismic belts. Seismic switchgear certification requires switchgear components, cabinets, anchoring mounts, and connections to pass shake table testing for a specific zone. Source for information on seismic zone: A Dictionary of Earth Sciences dictionary. USGS scientists conduct passive seismic study in the Washita Reach 1 study area. The outermost layer of the Earth (lithosphere) is made up of several large tectonic plates. We know of no current "zone" designations for sites outside of the United States. Example: "The New Madrid Seismic Zone." Zone NA Zone NA Not Applicable. Information and translations of seismic zone in the most comprehensive dictionary definitions resource on the web. First, the design team must take a multi-hazard approach towards design that accounts for the potential impacts of seismic forces as well as all the major hazards to which an area is vulnerable. A seismic zone is an area of seismicity probably sharing a common cause. For example, equipment tested for New York City would have to pass Zone 2A requirements. ShakeMap showing intensity of shaking for the HayWired Scenario.See:  http://earthquake.usgs.gov/earthquakes/shakemap/global/shake/haywiredm7.... Aerial photo of the San Andreas Fault in the Carrizo Plain. Therefore, an individual site study is necessary. Seismic hazard is the hazard associated with potential earthquakes in a particular area, and a seismic hazard map shows the relative hazards in different areas. Explanation of earthquake zone SBJ hypocenters determined with high precision from January 2002 to December 2017 around the deployment area of the OBSs are also shown by solid gray circles. An obsolete definition is a region on a map in which a common level of seismic design is required. Seismic definition is - of, subject to, or caused by an earthquake; also : of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite). seismic zone definition in English dictionary, seismic zone meaning, synonyms, see also 'seismic array',seismic wave',seismical',seism'. Early warning is a notification that is issued after an earthquake starts. Types of seismic waves: There are 3 types of seismic waves namely Primary waves, secondary waves and Surface or long waves. East Coast Headquarters 732.380.1700 phone. Higher seismicity along the eastern and western margins of the mountain ranges are attributed to left-lateral movement on the strike-slip faults (Abdel-Gawad, 1971). 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