Statistical Analysis of Seismicity Parameters and Completeness Period of Earthquake Catalog for Sree Padmanabhaswamy Temple, Thiruvananthapuram District, Kerala

Abstract

In the present study, seismicity data analysis of Sree Padmanabhaswamy Temple, Thiruvananthapuram District, Kerala, India, has been performed. The area is having a radius of 500 km with Sree Padmanabhaswamy Temple (8.48°N Latitude and 76.94°E Longitude) as the center. Earthquake catalog from 1822 to 2021 has been compiled and homogenized into equivalent moment magnitude (Mw) using regional empirical relationships. Data on earthquakes were declustered using Urhammer method to exclude foreshocks and aftershocks within a time and space window, and then statistical analysis was done to ensure data completeness. Using the Guntenberg-Ritchers recurrence relationship, the seismic parameters obtained are 1.234 and 0.532, respectively. The M<inf>max</inf> value calculated using Kijko’s MATLAB algorithm found to be 6.08 ± 0.26. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.