Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7624

Authors: Sbarra, P.*
Tosi, P.*
De Rubeis, V.*
Rovelli, A.*
Title: Influence of observation floor and building height on macroseismic intensity
Title of journal: Seismological Research Letters
Series/Report no.: 2/83 (2012)
Issue Date: Mar-2012
DOI: 10.1785/​gssrl.83.2.261
Keywords: observation floor
building height
macroseismic intensity
Abstract: The perception of an earthquake depends on whether the observer is located on a lower or upper floor within a building. Macroseismic scales propose only a qualitative description of the varying effects felt that are dependent on the floor the observer is on. To quantify these effects, in this study, we analyze 45,000 macroseismic questionnaires collected in Italy reporting on transitory effects. The questionnaires pertain to buildings no more than 10 stories high and are derived from municipalities experiencing a Mercalli-Cancani-Sieberg (MCS) intensity less than or equal to VII with the majority being III and IV. We find that the intensity variation caused by the increased shaking on upper floors can be quantified. The upper floor intensity increases by 0.4 MCS compared with ground and underground levels. After correcting for an average floor-dependence factor, we find a further building height effect evident in short buildings that are probably exposed to less intense shaking. This effect displays a variation with the hypocentral distance reaching an MCS intensity of -0.3 at distances on the order of 200 km.
Appears in Collections:05.01.04. Statistical analysis
Papers Published / Papers in press
05.02.02. Seismological data
04.06.04. Ground motion

Files in This Item:

File Description SizeFormatVisibility
Sbarra_FloorAndHeight_final_earth_prints.pdfMain article645.6 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License
Creative Commons


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA