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primary topic: SI-Hex: a new catalogue of instrumental seismicity for metropolitan France

SI-Hex: a new catalogue of instrumental seismicity for metropolitan France
type: AcademicArticle
type: Article
abstract: The aim of the SI-Hex project (acronym for « Sismicité Instrumentale de l’Hexagone ») is to provide a catalogue of seismicity for metropolitan France and the French marine economic zone for the period 1962–2009 by taking into account the contributions of the various seismological networks and observatories from France and its neighbouring countries. The project has been launched jointly by the Bureau Central Sismologique Français (CNRS-University/BCSF) and the Laboratoire de Détection et de Géophysique (CEA-DAM/LDG). One of the main motivations of the project is to provide the end user with the best possible information on location and magnitude of each earthquake. So far, due to the various procedures in use in the observatories, the different locations and magnitudes of earthquakes located in the SI-Hex zone were presenting large discrepancies. In the 2014 version of the catalogue, 1D localizations of hypocentres performed with a unique computational scheme and covering the whole 1962–2009 period constitute the backbone of the catalogue (SI-Hex solutions). When available, they are replaced by more precise localizations made at LDG or, for recent times, by the regional observatories within: 1) the French Alps, 2) the southernmost Alps and the Mediterranean domain including Corsica, 3) the Pyrenees, and 4) the Armorican massif. Moment magnitudes Mw are systematically reported in the SI-Hex catalogue. They are computed from coda-wave analysis of the LDG records for most Mw>3.4 events, and are converted from local magnitudes ML for smaller magnitude events. Finally, special attention is paid to the question of discrimination between natural and artificial seismic events in order to produce a catalogue for direct use in seismic hazard analysis and seismotectonic investigations. The SI-Hex catalogue is accessible on the web site www.franceseisme.fr and contains 38,027 earthquake hypocentres, together with their seismic moment magnitudes Mw.
date: 2015-01
volume: 186
issue: 1
is part of: Bulletin de la Societe Geologique de France
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository
subject: Collective properties of seismicity
subject: Owernia-Rodan-Alpy
subject: Reservoir impoundment

Societe Geologique de France
type: Organization

Bulletin de la Societe Geologique de France
type: Collection
issn: 00379409

Christophe Maron
type: Person
given name: Christophe
family name: Maron

Anne Deschamps
type: Person
given name: Anne
family name: Deschamps

Pierre Arroucau
type: Person
given name: Pierre
family name: Arroucau

Olivier Sanchez
type: Person
given name: Olivier
family name: Sanchez

Bertrand Potin
type: Person
given name: Bertrand
family name: Potin

Julien Fréchet
type: Person
given name: Julien
family name: Fréchet

Yves Cansi
type: Person
given name: Yves
family name: Cansi

Julie Perrot
type: Person
given name: Julie
family name: Perrot

Katia Van Der Woerd
type: Person
given name: Katia
family name: Van Der Woerd

Marc Nicolas
type: Person
given name: Marc
family name: Nicolas

Liliane Jenatton
type: Person
given name: Liliane
family name: Jenatton

Michel Cara
type: Person
given name: Michel
family name: Cara

Stéphane Bruno
type: Person
given name: Stéphane
family name: Bruno

Nicole Béthoux
type: Person
given name: Nicole
family name: Béthoux

Sophie Lambotte
type: Person
given name: Sophie
family name: Lambotte

François Thouvenot
type: Person
given name: François
family name: Thouvenot

Marie Macquet
type: Person
given name: Marie
family name: Macquet

Véronique Mendel
type: Person
given name: Véronique
family name: Mendel

Bertrand Delouis
type: Person
given name: Bertrand
family name: Delouis

Méric Haugmard
type: Person
given name: Méric
family name: Haugmard

Alexandra Deboissy
type: Person
given name: Alexandra
family name: Deboissy

Jean-Paul Santoire
type: Person
given name: Jean-Paul
family name: Santoire

Marie Calvet
type: Person
given name: Marie
family name: Calvet

Cécile Doubre
type: Person
given name: Cécile
family name: Doubre

Delphine Leobal
type: Person
given name: Delphine
family name: Leobal

Arnaud Mignan
type: Person
given name: Arnaud
family name: Mignan

Olivier Sèbe
type: Person
given name: Olivier
family name: Sèbe

Jocelyn Guilbert
type: Person
given name: Jocelyn
family name: Guilbert

Marc Grunberg
type: Person
given name: Marc
family name: Grunberg

Matthieu Sylvander
type: Person
given name: Matthieu
family name: Sylvander

Stéphanie Godey
type: Person
given name: Stéphanie
family name: Godey

Antoine Schlupp
type: Person
given name: Antoine
family name: Schlupp

Sébastien Chevrot
type: Person
given name: Sébastien
family name: Chevrot

Marylin Denieul
type: Person
given name: Marylin
family name: Denieul

Eric Beucler
type: Person
given name: Eric
family name: Beucler

Olivia Golle
type: Person
given name: Olivia
family name: Golle

Jérôme Van Der Woerd
type: Person
given name: Jérôme
family name: Van Der Woerd

Antoine Mocquet
type: Person
given name: Antoine
family name: Mocquet

Sophie Merrer
type: Person
given name: Sophie
family name: Merrer

Université de Strasbourg
type: Organization

CEA, Bruyères Le Chatel
type: Organization

Université de Nantes
type: Organization

Université de Nice-Sophia-Antipolis
type: Organization

Université Paul Sabatier
type: Organization

CNRS, OMP
type: Organization

CNRS, OCA
type: Organization

CNRS, EOST
type: Organization

CSEM
type: Organization

Université Joseph Fourier
type: Organization

Université de Bretagne Occidentale
type: Organization

HTML Summary of #1933 SI-Hex: a new catalogue of instrumental seismicity for metropolitan France
format: text/html
primary topic: SI-Hex: a new catalogue of instrumental seismicity for metropolitan France

Collective properties of seismicity
type: Concept

Owernia-Rodan-Alpy
type: Concept

Reservoir impoundment
type: Concept