Andrea Morelli

morelli@ingv.it

+39 06 5186-0443

+39 06 504-1181

MedNet Regional Centroid - Moment Tensors (INGV), Via di Vigna Murata 605, 00143 Roma, Italy

http://mednet.rm.ingv.it/rcmt.php

Pondrelli, S., A. Morelli, G. Ekstrvm, S. Mazza, E. Boschi, and A. M. Dziewonski, 2002, European-Mediterranean regional centroid-moment tensors: 1997-2000, Phys. Earth Planet. Int., 130, 71-101, 2002 Pondrelli, S., G. Ekstrvm, and A. Morelli, 2001, Seismotectonic re-evaluation of the 1976 Friuli, Italy, seismic sequence, J. Seismol., 5, 73-83. Morelli, A., Ekstrvm, and M. Olivieri, 2000, Source properties of the 1997-1998 Central Italy earthquake sequence from inversion of long period and broadband seismograms, J. Seismol., 4, 365-375. Ekstrvm, G., A. Morelli, E. Boschi, and A. M. Dziewonski, 1998, Moment tensor analysis of the central Italy earthquake sequence of September-October 1997, Geophys. Res. Let., 25, 1971-1974. A. Morelli, G. Ekstrvm, S. Mazza, S. Pondrelli, E. Boschi, A. M. Dziewonski, 2000, Surface-wave Centroid Moment Tensors in the Mediterranean region: the MEDNET-Harvard project, ORFEUS Electronic Newsletter, Vol.2, No. 1, page 4 (http://orfeus.knmi.nl/newsletter/vol2no1/index.html)

Our main product is a (routinely updated) catalog of seismic moment tensors for the European and Mediterranean area. The seismic moment tensor is a complete description of the earthquake size and source geometry. The Centroid Moment Tensor (CMT) is a reliable method for calculating moment tensors, by which the Harvard Seismology Centroid-Moment Tensor Project systematically studies global seismicity. We use instead a modified algorithm (modelling intermediate-period surface waves) to compute Regional CMTs (RCMT) for moderate-magnitude events, not well studied at global scale.

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