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The Centroid Moment Tensor is a good summary of the fault rupture happening during an earthquake. We here describe a method for its determination in case of large earthquakes (with magnitude greater than 6.5) recorded world-widely by permanent digital seismic stations networks, as well as how deploying it on a Grid computing facility finally enabled its fast completion. Two different approaches of this process used over the last years are herein detailed and discussed. Some important impacts of this work are then highlighted and future trends are foreseen.

Due to its intensive data processing and highly distributed organization, the multidisciplinary Earth Science applications community is uniquely positioned for the uptake and exploitation of Grid technologies. Currently Enabling Grids for E-sciencE, and other large Grid infrastructures are already deployed and capable of operational services. So far however, the adoption and exploitation of Grid technology throughout the Earth Science community has been slower than expected. The Dissemination and Exploitation of GRids in Earth sciencE project, proposed by the European Commission to assist and accelerate this process in a number of different ways, had between its main goals the creation of a roadmap towards Earth Science Grid platform. This paper presents the resulting roadmap.