Maximum intensity maps (MIM) for Portugal mainland

Teves-Costa, Paula; Batlló, Josep; Matias, L.; Catita, Cristina; Jiménez, M.J.; Garcı́a-Fernández, Mariano

doi:10.1007/s10950-019-09814-5

Cited by 16 publications

(11 citation statements)

References 50 publications

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“…tectonic stresses generated by the plate convergence and slab roll-back propagate inland generating also some significant earthquakes, like the 23rd April 1909 M~6.1 (e.g. Teves-Costa et al, 2019).…”

Section: Geodynamic Settingmentioning

confidence: 99%

A sanity check for earthquake recurrence models used in PSHA of slow deforming regions: the case of SW Iberia

Ramalho

Matias

Neres

et al. 2020

Preprint

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Abstract. Probabilistic Seismic Hazard Assessment (PSHA) is the most common tool used to decide on the acceptable seismic risk and corresponding mitigation measures. We propose two consistency tests to address the variability of earthquake generation models found in PSHA studies: i) one rule-of-thumb test where the seismic moment release from the model is converted to an average slip on a typical fault and compared with known plate kinematics or GNSS deformation field; ii) using a neotectonic model, the computed deformation is converted into seismic moment release and to a synthetic earthquake catalogue. We apply these tests to the W and SW Iberia slow deforming region, where two earthquake source areas are investigated: 1) the Lower Tagus Valley, one of the largest seismic risk zones of Portugal; and 2) the offshore SW Iberia area, considered to be the source for the 1st November 1755 event (M~8.7). Results show that some of the earthquake source models should be considered as suspicious, given their high/low moment release when compared to the expected values from GNSS observations or neotectonic modelling. In conclusion, PSHA studies in slow deforming regions should include a similar sanity check on their models' evaluation, downgrading the weight of poorly compliant models.

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Section: Geodynamic Settingmentioning

confidence: 99%

A sanity check for earthquake recurrence models used in PSHA of slow deforming regions: the case of SW Iberia

Ramalho

Matias

Neres

et al. 2020

Preprint

Self Cite

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“…It is widely known that the Portugal mainland is a slow seismic deforming region, where the interaction between the African and Eurasian plates can be responsible for large earthquakes. In the last century, the region has experienced at least 116 earthquakes with intensities equal or larger than III on the EMS-98 macroseismic intensity scale (Teves-Costa et al 2019). The most notable for the seismic history of Portugal is the 1755 Lisbon earthquake (8.5 ± 0.3 Mw) that caused great damage in the Algarve and Lisbon regions as well as in Leiria (Carvalho and Aveleira n.d.).…”

Section: Overview Of the Case Studymentioning

confidence: 99%

Assessment and mitigation of seismic risk at the urban scale: an application to the historic city center of Leiria, Portugal

Blyth

Napoli

Parisse

et al. 2020

Bull Earthquake Eng

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The implementation of a culture of seismic risk preparedness is becoming increasingly critical in Europe as the building stock ages and the awareness about seismic risk rises. In this context, the assessment of the seismic vulnerability of existing buildings, followed by the implementation of appropriate retrofitting solutions, can help to substantially reduce the levels of physical damage and economic impact of future events. The central region of Portugal is particularly susceptible to large seismic events and is characterized by the prevalence of historic masonry buildings. This work aims to validate assessment methods for the risk of historical city centers in order to propose management strategies for municipalities and assess the economic impact of large-scale seismic retrofitting. To do this, an application of these methods was performed on the historical city center of Leiria. An in-depth inspection was performed of the entire center and the results were compiled into a database. Using an index-based seismic vulnerability assessment approach, a vulnerability assessment was made for each building. Based on vulnerability and predicted damage, estimates of human and economic losses were made for the city center before and after retrofitting to justify interventions on a broad scale.

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“…Asimismo, el primero es el evento sísmico documentado más grande que ha afectado a Europa, que causó la muerte de 100 000 personas. La intensidad sísmica máxima de esta región en base los terremotos pasados es alta en el Algarve (IX-X) y Huelva (VII-VIII) (Teves- Costa et al, 2019). A pesar de que existe un riesgo sísmico importante, hay una falta de estudios sísmicos de la zona, ya que la mayoría de los estudios sísmicos de la península ibérica se concentran en el este y sureste.…”

Section: Abreviaturasunclassified

Rehabilitación sísmica estructural de colegios de educación primaria

Blanco¹

2020

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Colección Ediciones especialesDiseño de cubierta: Emilio Romero Sánchez Edición digital de la primera edición impresa de 2020 Reservados todos los derechos. Ni la totalidad ni parte de este libro puede reproducirse o transmitirse por ningún procedimiento electrónico o mecánico, incluyendo fotocopia, grabación magnética o cualquier almacenamiento de información y sistema de recuperación, sin permiso escrito

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Maximum intensity maps (MIM) for Portugal mainland

Cited by 16 publications

References 50 publications

A sanity check for earthquake recurrence models used in PSHA of slow deforming regions: the case of SW Iberia

A sanity check for earthquake recurrence models used in PSHA of slow deforming regions: the case of SW Iberia

Assessment and mitigation of seismic risk at the urban scale: an application to the historic city center of Leiria, Portugal

Rehabilitación sísmica estructural de colegios de educación primaria

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