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Potre 6. Maja 1976 V Furlaniji. Reevaluacija makrosezmćnih podatkov
Language
Other
Obiettivo Specifico
3T. Storia Sismica
Status
Published
JCR Journal
N/A or not JCR
Title of the book
Issue/vol(year)
/ (2017)
Pages (printed)
15-26
Issued date
2017
Subjects
Keywords
Abstract
Forty years after a devastating earthquake sequence, that has demanded almost 1000 lives and
destroyed towns and villages in Friuli and adjacent regions, we have decided to take another look at
the macroseismic data using the EMS-98 scale. Although four decades are not, historically
speaking, a long period, and the quantity of existing data can be measured in hundred of kilograms
of paper (questionnaires, damage analysis, newspapers, studies etc.) it was disturbing to find out
that many of the original data are already missing and are probably lost forever. Effort was put into
finding additional and yet unknown primary data, e.g. photographic material of damaged localities
and eyewitness’ reports.
The earthquake was felt in large part of Europe. For intensity data points (IDPs) with only low
intensity values (especially in Switzerland, Hungary, Czech Republic, Poland) it was decided that
the data will be included into the joint dataset without the EMS re-evaluation. For IDPs with higher
intensity (especially in the countries closer to the epicentral region like Austria, Croatia, Germany –
ex West and East part separately, Slovenia) the re-evaluation was performed. A particular and more
complicated case concerns Italian data: the two main current Italian catalogues record two different
data sets, both in IDPs number and in intensity values. Due to the methodological differences in a
number of cases the EMS intensities are different than the previous MSK or MCS ones
destroyed towns and villages in Friuli and adjacent regions, we have decided to take another look at
the macroseismic data using the EMS-98 scale. Although four decades are not, historically
speaking, a long period, and the quantity of existing data can be measured in hundred of kilograms
of paper (questionnaires, damage analysis, newspapers, studies etc.) it was disturbing to find out
that many of the original data are already missing and are probably lost forever. Effort was put into
finding additional and yet unknown primary data, e.g. photographic material of damaged localities
and eyewitness’ reports.
The earthquake was felt in large part of Europe. For intensity data points (IDPs) with only low
intensity values (especially in Switzerland, Hungary, Czech Republic, Poland) it was decided that
the data will be included into the joint dataset without the EMS re-evaluation. For IDPs with higher
intensity (especially in the countries closer to the epicentral region like Austria, Croatia, Germany –
ex West and East part separately, Slovenia) the re-evaluation was performed. A particular and more
complicated case concerns Italian data: the two main current Italian catalogues record two different
data sets, both in IDPs number and in intensity values. Due to the methodological differences in a
number of cases the EMS intensities are different than the previous MSK or MCS ones
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article
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testo in sloveno
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