eprintid: 1535
rev_number: 16
eprint_status: archive
userid: 2
dir: disk0/00/00/15/35
datestamp: 2015-02-16 08:35:21
lastmod: 2017-02-08 12:21:36
status_changed: 2015-04-27 12:11:05
type: article
metadata_visibility: show
creators_name: Kijko, Andrzej
creators_name: Sellevoll, Markvard A.
corp_creators: Institute of Geophysics, Polish Academy of Sciences, Poland
corp_creators: Seismological Observatory, University of Bergen, Norway
title: Estimation of earthquake hazard parameters from incomplete data files. Part II. Incorporation of magnitude heterogeneity
ispublished: pub
subjects: MP2_2
subjects: MP3_1
divisions: EPOS-P
full_text_status: none
abstract: The maximum likelihood estimation of earthquake hazard parameters (maximum regional magnitude mmax, activity rate λ, and the Gutenberg - Richter parameter b) from incomplete data files is extended to the case of uncertain magnitude values. Two models of uncertainty are considered. In the first one, earthquake magnitude is specified by two values, the lower and the upper magnitude limit. It is assumed that such an interval contains the real, unknown magnitude. In the second model, uncertainty of earthquake magnitude is defined in the same way as it was proposed by Tinti and Mulargia (1985): the departure of the observed (apparent) magnitude from the true, unknown value is distributed normally. The proposed approach allows the combination of catalog parts of different quality, e.g., those where the assessment of magnitude is questionable and those with magnitudes determined very precisely.
As an illustration, the proposed procedures are applied for the estimation of seismicity parameters in western Norway with adjacent sea areas.
date: 1992-02
date_type: published
publication: Bulletin of the Seismological Society of America
volume: 82
number: 1
publisher: Seismological Society of America
pagerange: 120-134
refereed: TRUE
issn: 0037-1106
access_IS-EPOS: limited
owner: Publisher
citation:   Kijko, Andrzej and Sellevoll, Markvard A.  (1992) Estimation of earthquake hazard parameters from incomplete data files. Part II. Incorporation of magnitude heterogeneity.  Bulletin of the Seismological Society of America, 82 (1).  pp. 120-134.