A New Evaluation of Seismic Hazard for the Central America Region

Benito, M. B.; Lindholm, Conrad; Camacho, Eduardo; Climent, Álvaro; Marroquín, Griselda; Molina, Emilio; Rojas, Wilfredo; Escobar, J. J.; Talavera, E.; Alvarado, Guillermo E.; Torres, Yolanda

doi:10.1785/0120110015

Cited by 57 publications

(54 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These maps involved information about slopes, lithology and rain pattern. Volcanic and earthquake risk maps for Santo Domingo were downscaled from national-level sources for integration in this analysis (Pérez et al, 2004;Paniagua & Soto, 1988;Benito et al, 2012;Fernández et al, 2013;.…”

Section: Methodsmentioning

confidence: 99%

“…Linkimer (2008) examined the correlation between the intensity of the earthquakes and the maximum acceleration generated by them. Benito et al (2012) analyzed the maximum accelerations produced by Costa Rican earthquakes, which includes those that may cause damage to the structures of the studied area. Fernández et al (2012) investigated the floods of Santo Domingo finding that the most important events have been those of 1999 and 2010 which severely affected the communities Fatima, Rincón de Ricardo and La Rinconada and left dozens of homes uninhabitable.…”

Section: Antecedentsmentioning

confidence: 99%

See 1 more Smart Citation

Spatial Analysis of Disaster Risk in Santo Domingo De Heredia, Costa Rica, Central America

Arce¹,

Cháves²,

Grineski³

et al. 2014

JGG

View full text Add to dashboard Cite

This article summarizes the results of an investigation into disaster risk in the canton (county) of Santo Domingo de Heredia, Costa Rica. This canton is exposed to several natural hazards as well as technological risks. While the Costa Rican national law related to management of risks and emergency confers the responsibility for managing risks on municipal authorities, they are unprepared for this task. As such, we conducted this analysis to facilitate the tasks assigned by law and accelerate the process of informed disaster risk management in Santo Domingo. Threats and vulnerabilities were mapped in each of the 140 Minimum Geostatistical Units (MGU) of the canton and then a disaster risk index combining both was estimated and mapped. The main threats in Santo Domingo are floods, volcanic eruptions, earthquakes, landslides and incidents associated with a pipeline that crosses the canton. The main social vulnerabilities are physical and economic. In most of the canton, disaster risk is relatively low but it is quite high in the southern reaches of the canton, in the districts Santa Rosa, Santo Tomas and San Miguel.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Antecedentsmentioning

confidence: 99%

Spatial Analysis of Disaster Risk in Santo Domingo De Heredia, Costa Rica, Central America

Arce¹,

Cháves²,

Grineski³

et al. 2014

JGG

View full text Add to dashboard Cite

show abstract

“…Tomando en cuenta un Mm de 5,40 para el catálogo en completitud y una MC de 5,0, el valor de b obtenido por este último método es de 0,96. Este valor se encuentra dentro del rango de valores publicados para la región de Costa Rica que varían entre 0,48 y 1,40 para áreas y fuentes sísmicas específicas Laporte et al, 1994;Benito et al, 2012). Además, el resultado obtenido es similar al valor de b promedio para diferentes subregiones dentro de Costa Rica presentado en estudios previos, por ejemplo: 0,97 en Rojas et al (1993), 0,91 en Laporte et al (1994) y 0,93 en Benito et al (2012), no obstante deben de considerarse las limitaciones que se explican en la siguiente sección para su correcta interpretación.…”

Section: Relación Gutenberg-richterunclassified

“…Para poder realizar un estudio que contemple toda la gama de magnitudes, se debería establecer un lugar y momento de tiempo en los cuales se tuviera certeza de que se ha mantenido una capacidad de registro de sismicidad instrumental constante en dicho lapso (Benito et al, 2012;Mendoza, 2012;Valladares, 2013). Desafortunadamente, aún es difícil que una red sismológica alcance la detección total de los sismos para periodos considerables de tiempo.…”

Section: Discusión Sobre El Sesgo Del Valor Bunclassified

Completitud Del Catálogo De La Red Sismológica Nacional De Costa Rica Durante 1975-2014

Arroyo¹,

Godínez²,

Linkimer³

2017

Bol. Geol.

View full text Add to dashboard Cite

RESUMENEn este artículo se evalúa la estabilidad de la tasa media de ocurrencia de sismos y la distribución temporal de la sismicidad en Costa Rica a partir del método de Stepp, con el fin de determinar la magnitud de completitud del catálogo sísmico de la Red Sismológica Nacional (RSN) y la relación Gutenberg-Richter para el periodo 1975-2014. El catalogo fue depurado de acuerdo con varios criterios y homogeneizado a magnitud momento (Mw). La magnitud de completitud del catálogo total obtenida es de 5,0, pero puede disminuir hasta 3,0 para ciertos periodos de tiempo. Los resultados reflejan la mejora en la detección de sismos debido al cambio de sistemas analógicos a digitales a partir de 1990 y el aumento considerable en el número de estaciones a partir del año 1995. El valor b obtenido para todo el catálogo es 0,96, el cual es muy similar a valores regionales obtenidos en estudios previos, no obstante deben considerarse las limitaciones discutidas en el artículo para su correcta interpretación.Palabras clave: magnitud de completitud; sismicidad en Costa Rica; método de Stepp. COMPLETENESS OF THE COSTA RICA NATIONAL SEISMOLOGICAL NETWORK CATALOG DURING 1975-2014 ABSTRACTThis study evaluates the stability of the mean earthquake occurrence rate and the temporal distribution of seismicity in Costa Rica from the Stepp method, in order to determine the completeness magnitude of the seismic catalog of the National Seismological Network (RSN) and the Gutenberg-Richter relationship for the period 1975-2014. The catalog was filtered using several criteria and homogenized to moment magnitude (Mw). The magnitude of completeness obtained for the entire catalog is 5.0, but it could be as low as 3.0 for certain periods of time. These results show the improvement in seismic detection due to the change from analogue to digital systems since 1990 and the considerable increase in the number of stations since 1995. The value b obtained for this catalog is 0.96, which is very similar to regional b values obtained in previous studies, nevertheless, the limitations discussed in this paper have to be considered in order to interpret this value.

show abstract

“…). In Guatemala the North American-Caribbean plate is regarded as the main source of low-recurrence, high-intensity earthquakes for most cities, including Guatemala City4. In spite of its large hazard potential, the seismic history of the boundary is poorly known and relies on the compilation of written reports of earthquake-related destruction (White5), and on the observation of earthquake-induced damages in pre-Columbian settlements (Kovach6).…”

mentioning

confidence: 99%

Guatemala paleoseismicity: from Late Classic Maya collapse to recent fault creep

Brocard

Anselmetti

Teyssier

2016

Sci Rep

View full text Add to dashboard Cite

We combine ‘on-fault’ trench observations of slip on the Polochic fault (North America-Caribbean plate boundary) with a 1200 years-long ‘near-fault’ record of seismo-turbidite generation in a lake located within 2 km of the fault. The lake record indicates that, over the past 12 centuries, 10 earthquakes reaching ground-shaking intensities ≥ VI generated seismo-turbidites in the lake. Seismic activity was highly unevenly distributed over time and noticeably includes a cluster of earthquakes spread over a century at the end of the Classic Maya period. This cluster may have contributed to the piecemeal collapse of the Classic Maya civilization in this wet, mountainous southern part of the Maya realm. On-fault observations within 7 km of the lake show that soils formed between 1665 and 1813 CE were displaced by the Polochic fault during a long period of seismic quiescence, from 1450 to 1976 CE. Displacement on the Polochic fault during at least the last 480 years included a component of slip that was aseismic, or associated with very light seismicity (magnitude <5 earthquakes). Seismicity of the plate boundary is therefore either non-cyclic, or dominated by long-period cycles (>1 ky) punctuated by destructive earthquake clusters.

show abstract

A New Evaluation of Seismic Hazard for the Central America Region

Cited by 57 publications

References 21 publications

Spatial Analysis of Disaster Risk in Santo Domingo De Heredia, Costa Rica, Central America

Spatial Analysis of Disaster Risk in Santo Domingo De Heredia, Costa Rica, Central America

Completitud Del Catálogo De La Red Sismológica Nacional De Costa Rica Durante 1975-2014

Guatemala paleoseismicity: from Late Classic Maya collapse to recent fault creep

Contact Info

Product

Resources

About