Ubc seismic zone map pdf

This map illustrates earthquake intensity zones in accordance with the 1956 version of the modified mercalli scale mms, describing the effects. Hazards are measured as the likelihood of experiencing earthquake shaking of various intensities. This code is often used as a reference in other african countries for seismic design provisions. The material presented in this web application should not be used or relied upon for any specific application without competent examination and verification of its accuracy, suitability and applicability by. Seismic design maps usgs earthquake hazards program. Sone han, u tint lwin swe and daw tin htay mu in august 2003, maung thein et al. Simplified seismic hazard map for canada, the provinces. An a0 poster and additional printable material is available. Seismic qualified equipment eddie wilkie engineering manager power distribution organization americas. United states seismic zones map sorth o kou bismarck soocb dakota pierre tex i.

An updated code has been in development since 20 but the authors were unable to obtain a draft. The international code council icc is a nonprofit organization dedicated to developing model codes and standards used in the design, build and compliance process. S austin ip, seismic zones ground acceleration d zone 0 o. This study has recommended an update for the seismic data in sudan which has taken ubc 1994 as a reference code, so as to match the new requirements of ubc. Figure 31 seismic zone map for usa 32 figure 32 maximum considered earthquake ground motion for the conterminous us of 0. This report provides national seismic hazard maps compiled by the bgs for the purposes of seismic zoning.

Groundbased nuclear explosion monitoring technologies seismic characteristics of northern iraq and surrounding regions hafidh a. These maps are distributed to all affected cities, counties, and state agencies for their use in planning decisions. World seismic zones countrycity seismic zone afghanistan. The 1997 ubc seismic design provisions are based on strengthlevel design rather than servicelevel design. Fig 4 shows a color coded seismic zoning map of pakistan issued by.

Seismic detailing requirements seismic zones in the uniform building code, through its 1997 edition, and in seismic codes, standards and other documents based on the ubc, seismic detailing requirements and other restrictions such as height limit on certain structural systems depend upon the seismic zone in which a structure is located. World seismic zone map ubc seismic zone map pdf seismic zone map washington state earthquake risk analysis expands risk zones united states save map sone map usa induced earthquakes major fault lines ikipedia united states fault lines maps madrid seismic zone earthquake hazard article. While seismic codes are often updated directly after the occurrence of a major earthquake with many casualties, new codes have little or no effect without an. Seismic zoning map of india india map, map of india. Results of the seismic hazard analysis were used to develop a new macrozonation map for jordan as well as an associated suite of elastic response spectra applicable for the different seismic zones. Conference on earthquake engineering, vancouver, 2492. A helpful map of the seismic zones in the united states, according to the ubc 1997 map.

Geological survey geologic investigations series i2724. The map is a simplification of the national building code of canada seismic hazard map for spectral acceleration at a 0. Map of india showing all five seismic zones of india. Chapter 9 seismic design nysdot geotechnical page 97 november 4, 2015 design manual rev. Comparison of the seismic provisions of the 1997 uniform. Us ubc 1997 seismic zone map partner engineering and. Although you may hear the terms seismic zone and seismic hazard zone used interchangeably, they really describe two slightly different things. The hazard maps this study produced are contained in the british.

Richter magnitude is based on the amplitude of the seismic waves recorded on instruments called seismographs. Zones of international cities, us department of states manual, 1997. The united states is divided into seismic zones 0 through 4, with 0 indicating the weakest earthquake ground motion, and 4 indicating the strongest. European seismic hazard maps seismic hazard harmonization in. The value of the coefficient thus normalized can be viewed as the peak ground acceleration z, in percent of gravity, in each zone. Chapter 17 provides a variety of procedures and criteria for testing materials and assemblies, labeling materials and assemblies and special inspection of structural assemblies. There are five seismic zones consideration and defined in table 16i of ubc97 code. The current ubc seismic zone map figure 1 1997 has five seismic zones, ranging from zone. Seismic zone map for more information about aei consultants or seismic inspections in your area please call.

Therefore, maps are provided of rainfall, seismic, snow and wind criteria in different regions. Zone 4 ubc or ibc requests can use netshelter sx cabinets. A seismic hazard zone describes an area with a particular level of hazard due to. The seismic zones map and seismic area map are generated using different criteria so no correlation can be drawn between the two maps, or seismic standards zone or areas derived by these maps. There are five seismic zones in india, zone 1 being the secure place and zone 5 being the earth quake prone area. Each zone also has specific structural detailing requirements. In the 1997 ubc, the earthquake load e is a function of both the horizontal and vertical components of the ground motion. The seismic hazard map layer indicates the relative seismic hazard across canada. Based on the uniform building code ubc 1970 divided the philippines into 3 zones with corresponding seismic zone factors v zkcw ductility requirements are still not included from 1971 san fernando earthquake nscb 1972.

Now the question is how to determine seismic zone for some particular area. Understanding seismic zones monolithic dome institute. Next, the values on the seismic risk map are figured this way. Lisa meadows reports on seismic maps showing which areas in northern california reside in hot zones 1142018 earthquake in new madrid seismic zone prediction faults in the east new madrid fault zone and recent virginia earthquake understanding risks. Seismic design maps usgs earthquake hazard program. Modified mercalli scale this map illustrates earthquake intensity zones in accordance with the 1956 version of the modified mercalli scale mms, describing the effects of an earthquake on the surface of the earth and integrating numerous parameters such as ground acceleration, duration of an earthquake, and subsoil effects. Many of these service requests are for minor jobs that take less than two days worth of work. Seismic zone is most important element in determining seismic forces. Understanding seismic hazard is essential for earthquake resistant design of buildings. The map is based on the most recent usgs models for the conterminous u.

Earthquake hazard map showing peak ground accelerations having a 2 percent probability of being exceeded in 50 years, for a firm rock site. An earlier version of the code was based on ubc but the most recent version is based on the draft env 1998. The zone teams are made up of the trades that perform much of this work. If you live in seismic zone 4, you have a one in ten chance that an earthquake with an active peak acceleration level of 0. Another point of confusion is that the california geological survey has two sets of maps with the names earthquake hazards zones and earthquake fault. Basic seismological characterization for crook county, wyoming by. Seismicity is based on spectral acceleration listed in asce 710. This map is the revised version of the fi rst seismic zone map of myanmar prepared by dr. November 1, 2016 very high high seattle moderate high american lake spokane moderate low vancouver walla walla fort harrison white river portland miles city low junction togus u. Department of veterans afairs seismic zone map h 188 note. The maps displayed below show how earthquake hazards vary across the united states. The international codes icodes are the widely accepted, comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe, sustainable, affordable and resilient structures. Whats the difference between seismic zone 4 maps and high. Louis chicago jonesboro kansas city wichita norman denver ogden rexburg san jose san diego washington d.

How to read the mapsthe colors in the maps denote seismic design categories sdcs, which reflect the likelihood of experiencing earthquake shaking of various intensities. A seismic zone is used to describe an area where earthquakes tend to focus. Usgs earthquake hazards program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards. Eurocode 8 seismic hazard zoning maps for the uk bgs. While the information presented on this website is believed to be correct, seaoc oshpd and its sponsors and contributors assume no responsibility or liability for its accuracy. Seismic zones are regions in which seismic ground motion, corresponding to a certain probability of occurrence, is within certain ranges.