eprintid: 2064
rev_number: 10
eprint_status: archive
userid: 6
dir: disk0/00/00/20/64
datestamp: 2018-06-02 11:23:06
lastmod: 2018-06-02 11:23:06
status_changed: 2018-06-02 11:23:06
type: conference_item
metadata_visibility: show
creators_name: Leptokaropoulos, Konstantinos Michail
creators_name: Adamaki, Aggeliki K.
creators_id: kleptoka@igf.edu.pl
creators_id: adaggela@yahoo.gr
corp_creators: Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland
corp_creators: Department of Earth Sciences, Uppsala University, Sweden
title: Uncertainty of b-value Estimation in Connection with Magnitude Distribution Properties of Small Data Sets
subjects: MP2
subjects: SA
divisions: SHEER
full_text_status: public
pres_type: poster
abstract: We evaluate the efficiency of the maximum likelihood estimator introduced by Aki (1965), using synthetic datasets exhibiting diverse but well defined properties. The deviation of the b-value estimation from its real value is quantified by Monte Carlo simulations as a function of catalogue features and data properties such as the sample size, the magnitude uncertainties distribution, the round-off interval of reported magnitude values and the magnitude range. Within the objective of this study, algorithms have been compiled for the determination of such observational-theoretical deviations and to facilitate the construction of nomograms corresponding to diverse cases of input parameters. In this way, a more accurate estimation of the uncertainty level for the b-value and MC determination can be achieved, contributing to a more robust seismic hazard assessment, especially at low activity areas and induced seismicity sites. Our results indicate that b-value analysis, especially for small datasets should be carried out together with Magnitude range analysis. Nomograms should be constructed and adjusted to each particular case study in order to achieve a more accurate estimation of the b-value and the corresponding uncertainty.
date: 2018-03
date_type: submitted
event_title: 7 th EAGE Workshop on Passive Seismic,
event_location: Kraków, Poland
event_dates: 26-29 March 2018
event_type: workshop
official_url: https://www.researchgate.net/publication/324106393_Uncertainty_of_b-value_Estimation_in_Connection_with_Magnitude_Distribution_Properties_of_Small_Data_Sets
access_IS-EPOS: unlimited
owner: Publisher
citation:   Leptokaropoulos, Konstantinos Michail and Adamaki, Aggeliki K.  (2018) Uncertainty of b-value Estimation in Connection with Magnitude Distribution Properties of Small Data Sets.  In: 7 th EAGE Workshop on Passive Seismic,, 26-29 March 2018, Kraków, Poland.     
document_url: https://episodesplatform.eu/eprints/2064/1/EAGE7_2018_P09.pdf