Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica

Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica

The first relationship between Modified Mercalli Intensity (MMI) scale and the horizontal component of Peak Ground Acceleration (PGA) was developed for the Costa Rican region using regression analysis of 108 earthquakes (2.8 < Mw < 7.7) that occurred between 1983 and 2004. For each PGA...

Full description

Bibliographic Details
Main Author: Linkimer, Lepolt
Format: Online
Language:spa
Published: Universidad de Costa Rica 2007
Online Access:https://revistas.ucr.ac.cr/index.php/geologica/article/view/4218
id RGAC4218
record_format ojs
spelling RGAC42182023-04-26T01:46:48Z Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica Linkimer, Lepolt Intensidad Mercalli Modificada aceleración pico del suelo análisis de regresión Información macrosísmica Costa Rica Modified Mercalli Intensity Peak Ground Acceleration Regression Analysis Macroseismic Information The first relationship between Modified Mercalli Intensity (MMI) scale and the horizontal component of Peak Ground Acceleration (PGA) was developed for the Costa Rican region using regression analysis of 108 earthquakes (2.8 < Mw < 7.7) that occurred between 1983 and 2004. For each PGA instrumentally recorded, a single MMI value was assigned based on the geographic proximity to the PGA observation. A total of 330 values of both the largest PGA of the two horizontal components (PGAmax) and the average of the two horizontal components (PGAave) were associated to MMI values. The correlations obtained are: MMI=2.30log(PGAmax)+0.92 and MMI=2.33log(PGAave)+0.76 for MMI II-V and MMI=3.82log(PGAmax)-1.78 and MMI=4.60log(PGAave)-3.38 for MMI V-VII. Predicted PGA intervals for each intensity unit were proposed based on these equations. There is a fairly remarkable agreement between the PGAmax vs. MMI found in this study and the correlation calculated by Wald et al. (1999a) for California. Keywords: Modified Universidad de Costa Rica 2007-07-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/geologica/article/view/4218 10.15517/rgac.v0i38.4218 Revista geológica de América central; Vol. 38 (2008) Revista geológica de América central; Vol. 38 (2008) 2215-261X 0256-7024 spa https://revistas.ucr.ac.cr/index.php/geologica/article/view/4218/4042 Derechos de autor 2014 Revista Geológica de América Central
institution Universidad de Costa Rica
collection Revista Geológica de América Central
language spa
format Online
author Linkimer, Lepolt
spellingShingle Linkimer, Lepolt
Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
author_facet Linkimer, Lepolt
author_sort Linkimer, Lepolt
description The first relationship between Modified Mercalli Intensity (MMI) scale and the horizontal component of Peak Ground Acceleration (PGA) was developed for the Costa Rican region using regression analysis of 108 earthquakes (2.8 < Mw < 7.7) that occurred between 1983 and 2004. For each PGA instrumentally recorded, a single MMI value was assigned based on the geographic proximity to the PGA observation. A total of 330 values of both the largest PGA of the two horizontal components (PGAmax) and the average of the two horizontal components (PGAave) were associated to MMI values. The correlations obtained are: MMI=2.30log(PGAmax)+0.92 and MMI=2.33log(PGAave)+0.76 for MMI II-V and MMI=3.82log(PGAmax)-1.78 and MMI=4.60log(PGAave)-3.38 for MMI V-VII. Predicted PGA intervals for each intensity unit were proposed based on these equations. There is a fairly remarkable agreement between the PGAmax vs. MMI found in this study and the correlation calculated by Wald et al. (1999a) for California. Keywords: Modified
title Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
title_short Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
title_full Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
title_fullStr Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
title_full_unstemmed Relationship Between Peak Ground Acceleration and Modified Mercalli Intensity in Costa Rica
title_sort relationship between peak ground acceleration and modified mercalli intensity in costa rica
publisher Universidad de Costa Rica
publishDate 2007
url https://revistas.ucr.ac.cr/index.php/geologica/article/view/4218
work_keys_str_mv AT linkimerlepolt relationshipbetweenpeakgroundaccelerationandmodifiedmercalliintensityincostarica
_version_ 1811746922942169088

Similar Items