Relationships Between M w and Other Earthquake Size Parameters in the Spanish IGN Seismic Catalog

Cabañas, Luis; Rivas-Medina, A.; Martínez-Solares, J. M.; Gaspar‐Escribano, Jorge M.; Benito, B.; Antón, Resurrección; Ruiz‐Barajas, Sandra

doi:10.1007/s00024-014-1025-2

Cited by 33 publications

(25 citation statements)

References 35 publications

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“…In these cases, the seismic potential of the corresponding region is assigned to the zones. The seismic moment released in the region is estimated from the seismic catalogue of Spain homogenized to M w (IGN-UPM Working Group, 2013; Cabañas et al, 2015). This catalogue contains 1,496 earthquakes, with magnitudes ranging from 4.0 to 6.6.…”

Section: Source Input Datamentioning

confidence: 99%

“…However, it is worth noting that the seismic potential of regions 35, 36 and 38 is dominated by the seismic potential of faults. The seismic hazard calculation is carried out using the software CRISIS2012 (Ordaz et al, 2013), considering the strong motion equation of Campbell and Bozorgnia (2014), which makes it possible to include the fault geometry and the faulting style. The ground motion parameters predicted include peak ground acceleration (PGA) and 15 spectral accelerations within the period range (0.05-10 s), all obtained in hard soil (V s 30 = 760 m s −1 ) conditions.…”

Section: Source Input Datamentioning

confidence: 99%

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Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain

Rivas-Medina

Benito

Gaspar‐Escribano

2018

Nat. Hazards Earth Syst. Sci.

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Abstract. This paper presents a methodological approach to seismic hazard assessment based on a hybrid source model composed of faults as independent entities and zones containing residual seismicity. The seismic potential of both types of sources is derived from different data: for the zones, the recurrence model is estimated from the seismic catalogue. For fault sources, it is inferred from slip rates derived from palaeoseismicity and GNSS (Global Navigation Satellite System) measurements. Distributing the seismic potential associated with each source is a key question when considering hybrid zone and fault models, and this is normally resolved using one of two possible alternatives: (1) considering a characteristic earthquake model for the fault and assigning the remaining magnitudes to the zone, or (2) establishing a cut-off magnitude, Mc, above which the seisms are assigned to the fault and below which they are considered to have occurred in the zone. This paper presents an approach to distributing seismic potential between zones and faults without restricting the magnitudes for each type of source, precluding the need to establish cut-off Mc values beforehand. This is the essential difference between our approach and other approaches that have been applied previously. The proposed approach is applied in southern Spain, a region of low-to-moderate seismicity where faults move slowly. The results obtained are contrasted with the results of a seismic hazard method based exclusively on the zone model. Using the hybrid approach, acceleration values show a concentration of expected accelerations around fault traces, which is not appreciated in the classic approach using only zones.

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Section: Source Input Datamentioning

confidence: 99%

Section: Source Input Datamentioning

confidence: 99%

Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain

Rivas-Medina

Benito

Gaspar‐Escribano

2018

Nat. Hazards Earth Syst. Sci.

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“…The seismic moment released in the region is estimated from the seismic catalog recently homogenized (IGN-UPM Working Group, 2013;Cabañas et al, 2015). It contains 1496 earthquakes, with magnitudes ranging from 4.0 to 6.6.…”

Section: Sources Input Datamentioning

confidence: 99%

Approach for combining faults and area sources in seismic hazard assessment: Application in southeastern Spain

Rivas-Medina¹,

Benito²,

Gaspar‐Escribano³

2018

Preprint

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Abstract. This paper presents a methodological approach for seismic hazard assessment that considers a hybrid source model composed by faults as independent entities and zones (containing the residual seismicity). The seismic potential of both types of sources is derived from different data: for the zones, the recurrence model is estimated from the seismic 10 catalog. For fault sources, it is inferred from kinematic parameters derived from paleoseismicty and GNSS measurements.Distributing the seismic potential associated to each source is a key question when considering hybrid models of zone and faults, which some authors solve by assigning to the fault only the earthquakes that exceed a fixed magnitude value Mc. In the present approach, instead of restricting the magnitudes of each type of source, the distribution of seismic potential is carried out only for magnitudes below the maximum magnitude value completely recorded in the catalog (Mmaxc). This is 15 derived from a completeness analysis and can be lower than the Mmax generated by the faults, taking into account that their the recurrence period can be higher than the observation period of the catalog.The proposed approach is applied in southern Spain, a region of low-to-moderate seismic where faults move slowly. The results obtained are contrasted with the results of a seismic hazard model using the traditional zone model exclusively.Results show a concentration of expected accelerations around fault traces using the hybrid approach, which is not 20 appreciated in the classic approach using zones exclusively.

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“…Con el fin de aprovechar los catálogos sísmicos de terremotos históricos disponibles, se han propuesto diversas expresiones empíricas que relacionan intensidad con magnitud para zonas específicas del planeta (López Casado et al, 2000b;González, 2000;Gutdeutsch, Kaiser & Jentzsch, 2002;Mezcua, Rueda & García-Blanco, 2004;Irizarry et al, 2011). Asimismo, con objeto de homogeneizar las distintas escalas en términos de magnitud y transformar a la misma los registros definidos en otras escalas, se han ido obteniendo relaciones empíricas de conversión entre diferentes escalas de magnitud (Hanks & Kanamori, 1979;Nuttli, 1985;Rueda & Mezcua, 2002McGuire, 2004;CARM, 2014;Benito et al, 2006Benito et al, , 2015Cabañas et al, 2015; entre otros).…”

Section: Organización De La Tesisunclassified

“…No obstante, la escasez de eventos con registros instrumentalizados ha motivado la necesidad de aprovechar los catálogos históricos disponibles, proponiéndose diversas técnicas para adaptar o relacionar la intensidad macrosísmica a términos de parámetros de movimiento del suelo como, por ejemplo, la magnitud momento M w , ajustadas específicamente para la península Ibérica (Munuera, 1963;Mezcua & Martínez-Solares, 1983;Martínez-Solares & Mezcua, 2002;Cabañas et al, 2015).…”

Section: Organización De La Tesisunclassified

Avances metodológicos en la evaluación de la vulnerabiblidad sísmica en la trama urbana

Quiñonero¹,

Luís²

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have once again revealed the inadequate performance of many existing structures under the seismic action. Furthermore, in low-to-moderate seismicity regions, as the Iberian Peninsula, the relatively low frequency of seismic phenomena and the short memory of the population have produced a decrease in the social and institutional perception of the seismic threat. This Avances metodológicos en la evaluación de la vulnerabilidad sísmica en la trama urbana

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Relationships Between M w and Other Earthquake Size Parameters in the Spanish IGN Seismic Catalog

Cited by 33 publications

References 35 publications

Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain

Approach for combining fault and area sources in seismic hazard assessment: application in south-eastern Spain

Approach for combining faults and area sources in seismic hazard assessment: Application in southeastern Spain

Avances metodológicos en la evaluación de la vulnerabiblidad sísmica en la trama urbana

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