Ordinary Kriging Method using Isotropic Semivariogram Model for Estimating the Earthquake Strength in Bengkulu Province

Fachri Faisal, Pepi Novianti, Siska Yosmar

2018

Abstract

Ordinary kriging method is a method that gives the best unbiased estimator. Kriging method has been applied to several earthquake studies. Faisal (2014) uses isotropic semivariogram models using the linear program method in the earthquake event data sample in ​​Bengkulu. However, the kriging method has not been used to estimate the earthquake strength. This study aims to apply the ordinary kriging method to estimate the strengths of the earthquake in Bengkulu Province and its surrounding areas. The semivariogram model used in the parameter estimation is an isotropic semivariogram model. We use data earthquake events in the range from 99.00°E to 104.00°E on the latitude position and from 6.00°S to 2.00°S on the longitude position. The result shows that the semivariogram model that can be used is the spherical model with Sill = 0.1907015 and Range = 0.07929616 and the exponential model with Sill = 0.1898991 and Range = 0.01622501. The maximum earthquake strength estimation on the spherical model is Mw 7.5249 and the maximum on the exponential model is Mw 7.5254. These models show that the epicenter of the greatest earthquake estimation is on 102.0833°E, 4.7045°S.

Paper Citation

in Harvard Style

Faisal F., Novianti P. and Yosmar S. (2018). Ordinary Kriging Method using Isotropic Semivariogram Model for Estimating the Earthquake Strength in Bengkulu Province.In Proceedings of the International Conference on Mathematics and Islam - Volume 1: ICMIs, ISBN 978-989-758-407-7, pages 34-40. DOI: 10.5220/0008516800340040

in Bibtex Style

@conference{icmis18,
author={Fachri Faisal and Pepi Novianti and Siska Yosmar},
title={Ordinary Kriging Method using Isotropic Semivariogram Model for Estimating the Earthquake Strength in Bengkulu Province},
booktitle={Proceedings of the International Conference on Mathematics and Islam - Volume 1: ICMIs,},
year={2018},
pages={34-40},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008516800340040},
isbn={978-989-758-407-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Conference on Mathematics and Islam - Volume 1: ICMIs,
TI - Ordinary Kriging Method using Isotropic Semivariogram Model for Estimating the Earthquake Strength in Bengkulu Province
SN - 978-989-758-407-7
AU - Faisal F.
AU - Novianti P.
AU - Yosmar S.
PY - 2018
SP - 34
EP - 40
DO - 10.5220/0008516800340040