A review of intensity data banks online

Rubbia, Giuliana

doi:10.4401/ag-3340

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…The consolidated catalogue appeared in 1997 (in 1998 also on-line, with the code NT4.1), along with its full reference database, termed Database of Macroseismic Observations, or DOM [Monachesi and Stucchi, 1997; http://emidius.mi.ingv.it/DOM/]. DOM featured more than 36,000 data points relating to about 1,000 damaging Italian earthquakes, and included earthquake studies performed both by members of the GNDT working group and by other investigators; it was the first on-line macroseismic database in Europe, although not the first worldwide [Rubbia, 2004].…”

Section: The Rebirth Of Historical Seismology Studies In Italymentioning

confidence: 99%

The assessment of earthquake hazard in Italy: a review

Slejko

Valensise

Meletti

2022

Annals of Geophysics

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We present a review of the assessment of earthquake hazard in Italy, with special reference to the relationships between hazard models and building codes. After early attempts at hazard assessment in the 19th century, the 28 December 1908, Messina Straits earthquake prompted the inception of the first national seismic legislation, passed in early 1909. Nevertheless, the official building code started to be based on a truly scientific background only after 1980, when the catastrophic Irpinia (southern Italy) earthquake forced the qualified authority to accept a science-based assessment (statistics on the earthquake catalogue data) to support the implementation of the new national seismic zonation. Later on, between 1985 and 2000, the two basic components of seismic hazard assessment, namely the earthquake record and the distribution of earthquake sources, were greatly developed through investigations carried out by the Gruppo Nazionale Difesa dai Terremoti and by the Istituto Nazionale di Geofisica. Along with the improvement of basic data, the Italian seismological community started developing a new hazard model (PS4), based on the concept of seismotectonic probabilism, aimed at supplying the Italian Government with a solid reference frame for updating the seismic zonation and building code. Nevertheless, this goal was achieved only two decades later: on 31 October 2002 a moderate-size earthquake caused the death of 27 children and a teacher in a collapsed school of southern Italy, forcing the qualified authority to take a major step of modernization for the second time in 22 years. The entire Italian territory, including areas of rare and sparse seismicity, was subdivided into four seismic zones, mainly on the basis of PS4 results. In 2004, the Italian seismological community developed MPS04, a fully updated hazard model that was initially conceived only in view of updating the seismic zonation. In 2007, MPS04 was extended to provide design spectra for a new building code, which was finally adopted in 2009, following the disastrous L’Aquila (central Italy) earthquake. The experience of the European project for seismic hazard assessment named SHARE, completed in 2013, represented a step forward and put the basis for a new project, termed MPS19, designed specifically to provide a sound basis for updating the Italian building code.

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Section: The Rebirth Of Historical Seismology Studies In Italymentioning

confidence: 99%

The assessment of earthquake hazard in Italy: a review

Slejko

Valensise

Meletti

2022

Annals of Geophysics

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Probabilistic Analysis of the Korean Historical Earthquake Records

Houng

Hong

2013

Bulletin of the Seismological Society of America

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Seismic-hazard assessment for earthquakes with long recurrence intervals requires long earthquake records. Historical records for seismic damage can complement instrumental earthquake records, which is particularly useful for low-seismicity regions. Uncertainty in epicenters and magnitudes, however, hinders the full use of historical earthquake records. A probabilistic method to determine the epicenters of historical events is presented. The epicenters of historical events are determined probabilistically considering the nature of seismicity such that the spatial distribution of seismicity is nearly stationary with time in a constant tectonic environment. The probabilities for historical events to have occurred at given locations can be calculated using an instrumental seismicity density function and a distance-dependent weighting function. A location is selected randomly from a set of candidate source locations, of which probabilities are greater than a given prescribed value. The epicentral seismic intensity for the determined source location is calculated using an intensity-distance relationship. The magnitude is determined using an intensity-magnitude relationship. The method is verified with analysis of seismic intensity data for earthquakes in California. The method is applied to an ∼1900 year long Korean historical seismic record, and the magnitudes of historical earthquakes are estimated. The Gutenberg-Richter b values for the historical events are determined to be 0.73. It is observed that the northwestern and southern peninsula, and the southeastern offshore region have high seismic-hazard potentials.

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The CERESIS earthquake catalogue and database of the Andean Region: background, characteristics and examples of use

Giesecke

Capera

Leschiutta

et al. 2009

Annals of Geophysics

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The history of earthquakes in South America starts with the coming of the Spanish and Portuguese «conquistadores» at the beginning of the 16th century. Their chronicles, and those of local historians, are the only source of earthquake information for the following 400 years. The creation of the Regional Centre for Seismology for South America (CERESIS) was a major factor for homogenous regional progress, in that CERE-SIS promoted the implementation of the first unified earthquake catalogue and database for the whole Andean Region. This paper reviews basic information about the intensity database and the focal parameter catalogues proposed by CERESIS in 1985. Further macroseismic data available from the CERESIS database (earthquakes with I0 ≥ 8) are used to obtain preliminary results for the earthquake source parameters of selected South American historical events. The case of the Great Earthquake of the Venezuelan Andes, 29 April 1894, is presented in some detail.

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A review of intensity data banks online

Cited by 3 publications

References 3 publications

The assessment of earthquake hazard in Italy: a review

The assessment of earthquake hazard in Italy: a review

Probabilistic Analysis of the Korean Historical Earthquake Records

The CERESIS earthquake catalogue and database of the Andean Region: background, characteristics and examples of use

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