TY - JOUR A2 - Kossobokov, Vladimir G. AU - Joshi, Anand AU - Kumar, Ashvini AU - Castanos, Heriberta AU - Lomnitz, Cinna PY - 2013 DA - 2013/04/11 TI - Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area SP - 825276 VL - 2013 AB - This paper presents use of semiempirical method for seismic hazard zonation. The seismotectonically important region of Uttarakhand Himalaya has been considered in this work. Ruptures along the lineaments in the area identified from tectonic map are modeled deterministically using semi empirical approach given by Midorikawa (1993). This approach makes use of attenuation relation of peak ground acceleration for simulating strong ground motion at any site. Strong motion data collected over a span of three years in this region have been used to develop attenuation relation of peak ground acceleration of limited magnitude and distance applicability. The developed attenuation relation is used in the semi empirical method to predict peak ground acceleration from the modeled rupture planes in the area. A set of values of peak ground acceleration from possible ruptures in the area at the point of investigation is further used to compute probability of exceedance of peak ground acceleration of values 100 and 200 gals. The prepared map shows that regions like Tehri, Chamoli, Almora, Srinagar, Devprayag, Bageshwar, and Pauri fall in a zone of 10% probability of exceedence of peak ground acceleration of value 200 gals. SN - 1687-885X UR - https://doi.org/10.1155/2013/825276 DO - 10.1155/2013/825276 JF - International Journal of Geophysics PB - Hindawi Publishing Corporation KW - ER -