Towards Next Generation Attenuation Models for India

Abstract eng:
Ground motion prediction equations (GMPEs) were developed in the past using stochastic point source models and pseudofinite fault approaches, in addition to sparse data usually is not sufficiently well sampled in magnitude (Mw) distance from fault (R) space. Showing the localized and regionalized nature of attenuation models developed for India, along with the unified model released by NDMA for entire India, ways to arrive at the next generation attenuation models for India have been examined by considering the catalogue of earthquakes for India and its surroundings. The catalogue of India from National Centre for Seismology is compared with that of the international catalogue, which contains only earthquakes for, jut over a century but includes additional information like moment tensor solutions for about four decades. By analyzing the spatial distribution of focal mechanism for the available earthquakes, trends and patterns have been discussed which could help narrow down the range of possible values for the seismological parameters used in simulation based approaches for developing GMPEs.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket