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Felt intensity versus instrumental ground motion; a difference between California and eastern North america?


, : Felt intensity versus instrumental ground motion; a difference between California and eastern North america?. Bulletin of the Seismological Society of America 101.4

We examine the question of whether a single ground-motion intensity correlation equation (GMICE) is applicable to both eastern North America (ENA; intraplate) and California (interplate). We initially address this issue with the datasets from previous studies and separate them into central United States (CUS), California, and Canada datasets. We then add data from the 2008 M 5.2 Mt. Carmel, Illinois, and the 2005 M 4.7 Riviere du Loup earthquakes to the CUS and Canada datasets, respectively. For each dataset, the median of ground-motion values at each modified Mercalli intensity (MMI) level and their 95% confidence limits are calculated for peak ground velocity (PGV), peak ground acceleration (PGA), and spectral acceleration (SA) at 0.3, 1.0, and 2.0 s. The California median value is relatively higher than the CUS and Canada for PGV and SA at 1.0 and 2.0 s. Based on the median values and the associated uncertainty, we combine all datasets for PGA and 0.3-s SA in order to determine a GMICE. The CUS and Canada datasets are combined separately from California for PGV, 1.0-s SA, and 2.0-s SA. ENA earthquakes have a different spectral shape than those in California, particularly at intermediate periods ( approximately 1.0 s) where ENA spectral amplitudes are reduced, which may explain the difference we see at longer periods. Finally, a log-linear-fit of MMI to the median values of ground motion is used to determine GMICE.

US$19.90

DOI: 10.1785/0120100133


Other references

Aleksandrova L.A.; Soskov Y.D., 1969: Chromosome numbers of calligonum species in relation to the taxonomy of this genus. Botanicheskii Zhurnal (St Petersburg) 54(2): 196-201

Zoon, J.J., 1952: Hallopeau's acrodermatitis continua; case with atypical localization. Annales de Dermatologie et de Syphiligraphie 79(6): 641-643

Taché, J.P., 1987: Ray matrices for tilted interfaces in laser resonators. Applied Optics 26(3): 427-429

Anonymous, 1971: List of literature on antibiotics published in foreign countries. 84. Japanese Journal of Antibiotics 24(1): 39-50

Poliakov, V.V., 1973: Case of eye involvement in Besnier-Boeck-Schaumann disease. Vestnik Oftalmologii 1: 89-90

Shulga V.M., 1961: K voprosu o vozraste Krykkudukskogo intruzivnogo kompleksa (severnyi Kazakhstan). Concludes that granitoids of the Krykkuduk intrusive complex in northern Kazakhstan, USSR, were emplaced between the Caradocian (Ordovician) and Ashgillian (Silurian) in the early stages of Taconic orogenic activity.

Belenkov, I.N.; Mareev, V.Iu.; Skvortsov, A.A., 2009: Is it always necessary to use triple combination in the treatment of patients with chronic cardiac failure? Choice of the third neurohormonal blocker. Terapevticheskii Arkhiv 80(9): 5-12

Ague Jay J.; Carpenter Kenneth; Ostrom John H., 1995: Solution to the Hallopus enigma?. American Journal of Science 295(1): 1-17

Sensui N., 1987: Reinitiation of meiosis in ascidian egg by the injection of calcium ion. Zoological Science (Tokyo) 4(6): 1041

Richter, D.; Comer, P.; King, K.; Sawin, H.; Wright, D., 1988: Effects of low ionic strength solutions on pH of acid forested soils. "Salt effects" on soil pH are not well-documented with highly acidic soils in contact with solutions of very low ionic strength (less than 1 mM(c)/L). These dilute, acidic conditions are typical of soil solutions in many forest ecosystem...