Glendale (PDF) - Hazard Mitigation Web Portal - State of California

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Natural Hazards Mitigation PlanCity of Glendale, CaliforniaAppendix E – GlossaryNational WeatherService (NWS)Non-coastal A zoneNor'easterNorth AmericanVertical Datum(NAVD)OutflowPeak GroundAcceleration (PGA)Peak floodPlanimetricPlanningPotentially activefaultProbabilityQuaternaryRecurrence intervalReinforced concreteRepetitive losspropertyPrepares and issues flood, severe weather, and coastal storm warningsand can provide technical assistance to Federal and state entities inpreparing weather and flood warning plans.The portion of the Special Flood Hazard Area in which the principalsource of flooding is runoff from rainfall, snowmelt, or a combinationof both. In non-coastal A zones, flood waters may move slowly orrapidly, but waves are usually not a significant threat to buildings. SeeA zone and coastal A zone. (Note: the National Flood Insurance Programregulations do not differentiate between non-coastal A zones andcoastal A zones.)An extra-tropical cyclone producing gale-force winds andprecipitation in the form of heavy snow or rain.Datum used as a basis for measuring flood, ground, and structuralelevations. NAVD is used in many recent Flood Insurance Studiesrather than the National Geodetic Vertical Datum.Follows water inundation creating strong currents that rip atstructures and pound them with debris, and erode beaches and coastalstructures.The greatest amplitude of acceleration measured for a singlefrequency on an earthquake accelerogram. The maximum horizontalground motion generated by an earthquake. The measure of thismotion is the acceleration of gravity (equal to 32 feet per secondsquared, or 980 centimeter per second squared), and generallyexpressed as a percentage of gravity.The highest discharge or stage value of a flood.Describes maps that indicate only man-made features like buildings.The act or process of making or carrying out plans; the establishmentof goals, policies and procedures for a social or economic unit.A fault showing evidence of movement within the last 1.6 millionyears (750,000 years according to the U.S. Geological Survey) butbefore about 11,000 years ago, and that is capable of generatingdamaging earthquakes.A statistical measure of the likelihood that a hazard event will occur.The second period of the Cenozoic era, consisting of the Pleistoceneand Holocene epochs; covers the last approximately two million years.The time between earthquakes of a given magnitude, or within agiven magnitude range, on a specific fault or within a specific area.Structural concrete reinforced with steel bars.A property that is currently insured for which two or more NationalFlood Insurance Program losses (occurring more than ten days apart)of at least $1000 each have been paid within any 10-year period since1978.2006 PAGE E - 8
Natural Hazards Mitigation PlanCity of Glendale, CaliforniaAppendix E – GlossaryReplacement valueRetrofitRichter scaleRiskRiverineScaleScarpScourSedimentSeicheSeismicitySlumpSpecial FloodHazard Area (SFHA)The cost of rebuilding a structure. This is usually expressed in termsof cost per square foot, and reflects the present-day cost of labor andmaterials to construct a building of a particular size, type and quality.Any change made to an existing structure to reduce or eliminatedamage to that structure from flooding, erosion, high winds,earthquakes, or other hazardsA numerical scale of earthquake magnitude devised by seismologistC.F. Richter in 1935. Seismologists no longer use this magnitudescale because of limitations in how it measures large earthquakes, andprefer instead to use moment magnitude as a measure of the energyreleased during an earthquake.The estimated impact that a hazard would have on people, services,facilities, and structures in a community; the likelihood of a hazardevent resulting in an adverse condition that causes injury or damage.Risk is often expressed in relative terms such as a high, moderate orlow likelihood of sustaining damage above a particular threshold dueto a specific type of hazard event. It also can be expressed in terms ofpotential monetary losses associated with the intensity of the hazard.Of or produced by a river.A proportion used in determining a dimensional relationship; the ratioof the distance between two points on a map and the actual distancebetween the two points on the earth's surface.A steep slope.Removal of soil or fill material by the flow of floodwaters. The term isfrequently used to describe storm-induced, localized conical erosionaround pilings and other foundation supports where the obstruction offlow increases turbulence.Solid fragmental material that originates from weathering of rocksand is transported or deposited by air, water, ice, or that accumulatesby other natural agents, such as chemical precipitation from solution,and that forms in layers on the Earth's surface in a loose,unconsolidated form.A free or standing-wave oscillation of the surface of water in anenclosed or semi-enclosed basin (such as a lake, bay, or harbor), that isinitiated chiefly by local changes in atmospheric pressure, aided bywinds, tidal currents, and earthquakes, and that continues, pendulumfashion,for a time after cessation of the originating force.Describes the likelihood of an area being subject to earthquakes.A landslide characterized by a shearing and rotary movement of agenerally independent mass of rock or earth along a curved slipsurface.Under the National Flood Insurance Program, an area having specialflood, mudslide (i.e., mudflow) and/or flood-related erosion hazards,and shown on a Flood Hazard Boundary Map or Flood Insurance RateMap as Zone A, AO, A1-A30, AE, A99, AH, V, V1-V30, VE, M or E.2006 PAGE E - 9
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City CouncilDave Weaver, MayorRafi
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Natural Hazards Mitigation PlanCity
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Table 4-2: STAPLEE Ranking of Actio
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Table 4-4: Description of Ranking C
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NOTES:This map is intended for gene
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City of GlendaleUpdateHazard Mitiga
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Similar to Safety ElementIncludesEa
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HospitalsPartnershipsWithin City an
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Impact on CityMost significant area
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