The Perugia (Italy) earthquake of April 29,1984: a seismic survey

International audienceA field study after the Perugia earthquake of 29 April 1984 provided more than 300 well-recorded events concentrated within two parallel clusters separated by 2 km and trending along the Apenninic direction. The length of the aftershock area is 14 km, focal depths being shallower than 8 km. Relocation of the main event places the epicenter at the southern end of the aftershock zone, suggesting a rupture propagation from SE to NW. Most focal mechanisms are consistent with normal faulting. The spatial distribution of seismicity suggests that the Gubbio normal fault was activated during the main shock. This earthquake, together with the Norcia 1979 and the Abruzzi 1984 shocks, is typical of the extension in the high Apennines generated by the flexure of the mountain chain in response to regional compression. The Parma 1983 event, a thrust, belongs to the compres- sion zone at the eastern flank of the chain. These results are consistent with the EW continental collision along the Apennines

DESIGN AND DEVELOPMENT OF THE AFRICAN PLASMODIUM FALCIPARUM DATABASE – (afriPFdb)

The detailed investigation of mantle structure from the dispersion of surface waves is a young but vigorous field of study. Observations have been accumulating rapidly in the past few years because of the wide-spread installation of long-period instruments. Modern methods of data analysis used in conjunction with high-speed digital computers have made it possible to determine dispersion with greater precision and over a broader spectrum than has previously been possible. Observations now extend out to the fundamental periods of free oscillations of the whole earth. Interpretation has lagged behind observation because of the difficulties inherent in the problem of dispersion over realistic models of a spherical earth. This problem is now well in hand and dispersion appropriate to the standard earth models suggested by earlier body waves studies has been calculated. Even with digital computers, however, the computations are so formidable that until recently only the most tentative efforts have been made to modify the standard earth structures to give a more satisfactory fit to the data. A review as recent as the one by Bolt in the preceding volume of this series was, of necessity, limited to a discussion of the various standard earth models with no attempt made to use the full power of surface waves as an independent technique. Recent developments have made detailed surface wave interpretations possible and new information, rather than generalized verification of old information, should be rapidly forthcoming. Project Mohole and the International Upper Mantle Project have focused the attention of many earth scientists on the upper mantle. Because of this renewed emphasis present information and speculation on the properties of the mantle based on a variety of sources is summarized and re-examined in some detail. This provides the guide-lines for potentially fruitful further research and points out the nature of some of the discrepancies and limitations in our present knowledge that may be resolved by the surface wave method

Expansion, stratégies d’implantation et hiérarchisation des communautés halafiennes en Mésopotamie du nord aux VIe et Ve millénaires av. J.-C. : contraintes environnementales et choix sociaux-économiques

Gaulon Alain. Expansion, stratégies d’implantation et hiérarchisation des communautés halafiennes en Mésopotamie du nord aux VIe et Ve millénaires av. J.-C. : contraintes environnementales et choix sociaux-économiques. In: Regards croisés sur l’étude archéologique des paysages anciens. Nouvelles recherches dans le Bassin méditerranéen, en Asie centrale et au Proche et au Moyen-Orient. Lyon : Maison de l'Orient et de la Méditerranée Jean Pouilloux, 2010. pp. 65-78. (Travaux de la Maison de l'Orient et de la Méditerranée, 56

Expansion, stratégies d’implantation et hiérarchisation des communautés halafiennes en Mésopotamie du nord aux VIe et Ve millénaires av. J.-C. : contraintes environnementales et choix sociaux-économiques

Gaulon Alain. Expansion, stratégies d’implantation et hiérarchisation des communautés halafiennes en Mésopotamie du nord aux VIe et Ve millénaires av. J.-C. : contraintes environnementales et choix sociaux-économiques. In: Regards croisés sur l’étude archéologique des paysages anciens. Nouvelles recherches dans le Bassin méditerranéen, en Asie centrale et au Proche et au Moyen-Orient. Lyon : Maison de l'Orient et de la Méditerranée Jean Pouilloux, 2010. pp. 65-78. (Travaux de la Maison de l'Orient et de la Méditerranée, 56

Le majeur protégé, la souscription et la gestion du contrat d'assurance-vie précisions sur le droit antérieur aux réforme de 2007

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