Realistic Shakemap M6.5 Pidie Jaya Earthquake 7 December 2016 Based on Modal Summation Technique

2nd Southeast Asian Conference on Geophysics

Irwandi, Irwandi^1^2^3 ; Indris, Yunita^2 ; Muksin^1^2 ; Jamaluddin, Khaizal^3 ; Zulfakriza^4 ; Joni^5 ; Muzli^6

Physics Department, Syiah Kuala University, Indonesia^1

Tsunami and Disaster Mitigation Research Center, Syiah Kuala University, Indonesia^2

Engineering Geophysics, Syiah Kuala University, Indonesia^3

Global Geophysics Research Group, Institut Teknologi Bandung, Indonesia^4

Ministry of Energy and Mineral Resources, Aceh, Indonesia^5

Indonesian Agency for Meteorology, Climatology and Geophysics, Indonesia^6

关键词: Attenuation equation;    Deterministic seismic hazard analysis;    General equations;    Ground-motion prediction equations;    Modal summation techniques;    Strong ground motion;    Structural modeling;    Structural models;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/318/1/012005/pdf
DOI  :  10.1088/1755-1315/318/1/012005

来源: IOP

【 摘 要 】

The shakemap were usually generated based on strong ground motion calculations on attenuation equations of the Ground Motion Prediction Equation (GMPE). However, the GMPE is a general equation which does not take into account the structural model of each layer of the subsurface. It considers only the structure of the surface layer known as Vs30 calculated as amplification in shakemap calculation. In this paper, the realistic calculation of shakemap for Pidie Jaya earthquake of 7 December 2016 with magnitude M6.5 is performed. Shakemap is generated from a number of synthetics seismogram calculations from source to site-based capital calculation summation Technique. Neo Deterministic Seismic Hazard Analysis (NDSHA) has included in the calculation of the synthetics seismograph. Before engaging the Vs30 effect, the realistic shakemap capable of producing effects of the angular distribution of a double-couple model in a realistic calculation. This could give an advantage of realistic shakemap while the GMPE based shakemap had not taken into account the double couple model. The realistic calculation of modal summation technique for shakemap can be further developed by involving local structural models in a more comprehensive manner.