Preparation of earthquake catalogs for the National Seismic-Hazard Maps: Contiguous 48 states

Mueller, Charles C.; Hopper, Margaret G.; Frankel, Arthur

doi:10.3133/ofr97464

Cited by 25 publications

(18 citation statements)

References 12 publications

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“…About two-thirds of the deep earthquakes have been located in the region of northern Washington and southwestern Canada and the other third have been located in northwestern California. Table 1 shows the deep earthquakes used in the USGS national seismic hazard maps (MUELLER et al, 1997) with revisions from the Canadian Earthquake Epicentre File and the University of Washington Earthquake Database (CEEF/UW; ROGERS and CROSSON, 2000).…”

Section: Description Of Model Inputmentioning

confidence: 99%

Simulations of Seismic Hazard for the Pacific Northwest of the United States from Earthquakes Associated with the Cascadia Subduction Zone

Petersen

Cramer²,

Frankel

2002

Pure and Applied Geophysics

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We investigate the impact of different rupture and attenuation models for the Cascadia subduction zone by simulating seismic hazard models for the Pacific Northwest of the U.S. at 2% probability of exceedance in 50 years. We calculate the sensitivity of hazard (probabilistic ground motions) to the source parameters and the attenuation relations for both intraslab and interface earthquakes and present these in the framework of the standard USGS hazard model that includes crustal earthquakes. Our results indicate that allowing the deep intraslab earthquakes to occur anywhere along the subduction zone increases the peak ground acceleration hazard near Portland, Oregon by about 20%. Alternative attenuation relations for deep earthquakes can result in ground motions that differ by a factor of two. The hazard uncertainty for the plate interface and intraslab earthquakes is analyzed through a Monte-Carlo logic tree approach and indicates a seismic hazard exceeding 1 g (0.2 s spectral acceleration) consistent with the U.S. National Seismic Hazard Maps in western Washington, Oregon, and California and an overall coefficient of variation that ranges from 0.1 to 0.4. Sensitivity studies indicate that the paleoseismic chronology and the magnitude of great plate interface earthquakes contribute significantly to the hazard uncertainty estimates for this region. Paleoseismic data indicate that the mean earthquake recurrence interval for great earthquakes is about 500 years and that it has been 300 years since the last great earthquake. We calculate the probability of such a great earthquake along the Cascadia plate interface to be about 14% when considering a time-dependent model and about 10% when considering a timeindependent Poisson model during the next 50-year interval.

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Section: Description Of Model Inputmentioning

confidence: 99%

Simulations of Seismic Hazard for the Pacific Northwest of the United States from Earthquakes Associated with the Cascadia Subduction Zone

Petersen

Cramer²,

Frankel

2002

Pure and Applied Geophysics

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“…The Pantex site is located about 10 km from the fault-defined southern boundary of the uplift. Epicenters of earthquakes contained in the USGS CEUS catalog (mbLg 3.0 and above) and western U.S. (WUS) catalog (M,4 and above) (Mueller et al 1997;USGS96) are plotted in Figure 3.3-l. Both the craton and the AWU zone are characterized by relatively low rates of earthquake occurrence.…”

Section: Tectonic Settingmentioning

confidence: 99%

Probabilistic seismic hazard characterization and design parameters for the Pantex Plant

Bernreuter¹,

Foxall²,

Savy³

1998

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The Hazards Mitigation Center at Lawrence Livermore National Laboratory (LLNL) updated the seismic hazard and design parameters at the Pantex Plant. The probabilistic seismic hazard (PSH) estimates were first updated using the latest available data and knowledge from LLNL (1993( , 1998( ), Frankel et al. (1996, and other relevant recent studies from several consulting companies. Special attention was given to account for the local seismicity and for the system of potentially active faults associated with the Amarillo-Wichita uplift. Aleatory (random) uncertainty was estimated from the available data and the epistemic (knowledge) uncertainty was taken from results of similar studies. Special attention was given

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“…Mueller et al (1997) describes the processing of the catalogs, the removal of aftershocks, and the assignment of magnitudes.…”

Section: Alaska Catalogsmentioning

confidence: 99%

“…The maximum considered earthquake spectral acceleration maps were derived from the 2 percent in 50 year probabilistic maps shown simplified as Figures 12 and 13 (also see Frankel, et al, 1997), discussed above, with the application of the SDPG rules also described previously. Additional detail in applying the rules is described in this section.…”

Section: Development Of Nehrp Maximum Considered Earthquake Spectral mentioning

confidence: 99%

The 1997 NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures

Holmes

2000

Earthquake Spectra

214

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The Building Seismic Safety Council (BSSC) was established in 1979 under the auspices of the National Institute of Building Sciences as an entirely new type of instrument for dealing with the complex regulatory, technical, social, and economic issues involved in developing and promulgating building earthquake hazard mitigation regulatory provisions that are national in scope. By bringing together in the BSSC all of the needed expertise and all relevant public and private interests, it was believed that issues related to the seismic safety of the built environment could be resolved and jurisdictional problems overcome through authoritative guidance and assistance backed by a broad consensus.The BSSC is an independent, voluntary membership body representing a wide variety of building community interests. Its fundamental purpose is to enhance public safety by providing a national forum that fosters improved seismic safety provisions for use by the building community in the planning, design, construction, regulation, and utilization of buildings.To fulfill its purpose, the BSSC: (1) promotes the development of seismic safety provisions suitable for use throughout the United States; (2) recommends, encourages, and promotes the adoption of appropriate seismic safety provisions in voluntary standards and model codes; (3) assesses progress in the implementation of such provisions by federal, state, and local regulatory and construction agencies; (4) identifies opportunities for improving seismic safety regulations and practices and encourages public and private organizations to effect such improvements; (5) promotes the development of training and educational courses and materials for use by design professionals, builders, building regulatory officials, elected officials, industry representatives, other members of the building community, and the public; (6) advises government bodies on their programs of research, development, and implementation; and (7) periodically reviews and evaluates research findings, practices, and experience and makes recommendations for incorporation into seismic design practices.See Appendix E of the Commentary volume for a full description of BSSC activities.

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Preparation of earthquake catalogs for the National Seismic-Hazard Maps: Contiguous 48 states

Cited by 25 publications

References 12 publications

Simulations of Seismic Hazard for the Pacific Northwest of the United States from Earthquakes Associated with the Cascadia Subduction Zone

Simulations of Seismic Hazard for the Pacific Northwest of the United States from Earthquakes Associated with the Cascadia Subduction Zone

Probabilistic seismic hazard characterization and design parameters for the Pantex Plant

The 1997 NEHRP Recommended Provisions for Seismic Regulations for New Buildings and Other Structures

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