56 research outputs found
The Collaboratory for the Study of Earthquake Predictability:Achievements and Priorities
The Collaboratory for the Study of Earthquake Predictability
(CSEP) is a global cyberinfrastructure for prospective evaluations
of earthquake forecast models and prediction algorithms.
CSEP’s goals are to improve our understanding of earthquake
predictability, advance forecasting model development, test key
scientific hypotheses and their predictive power, and improve
seismic hazard assessments. Since its inception in California
in 2007, the global CSEP collaboration has been conducting
forecast experiments in a variety of tectonic settings and at a
global scale and now operates four testing centers on four continents
to automatically and objectively evaluate models against
prospective data. These experiments have provided a multitude
of results that are informing operational earthquake forecasting
systems and seismic hazard models, and they have provided new
and, sometimes, surprising insights into the predictability of
earthquakes and spurned model improvements. CSEP has also
conducted pilot studies to evaluate ground-motion and hazard
models. Here, we report on selected achievements from a decade
of CSEP, and we present our priorities for future activities.Published1305-13136T. Studi di pericolosità sismica e da maremotoJCR Journa
Recommended from our members
Ring-rearrangement metathesis of bicyclic amino acid derivatives
In this letter, we describe the ring-rearrangement metathesis (RRM) of bicyclic amino acid derivatives. The procedure is of use for the synthesis of constrained amino acid and peptide derivatives with potential as reverse-turn inducers. (c) 2005 Elsevier Ltd. All rights reserved
Collaboratory for the Study of Earthquake Predictability
Collaboratory for the Study of Earthquake
PredictabilityIstituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, Italy
Institute of Statistical Mathematics (ISM), Tokyo, Japan
Swiss Seismological Service, Institute of Geophysics (ETH), Zürich, SwitzerlandUnpublishedErice, Italyope
Search for Past Life on Mars: Possible Relic Biogenic Activity in Martian Meteorite ALH84001
Fresh fracture surfaces of the martian meteorite ALH84001 contain abundant polycyclic aromatic hydrocarbons (PAHs). These fresh fracture surfaces also display carbonate globules. Contamination studies suggest that the PAHs are indigenous to the meteorite. High-resolution scanning and transmission electron microscopy study of surface textures and internal structures of selected carbonate globules show that the globules contain fine-grained, secondary phases of single-domain magnetite and iron sulfides. The carbonate globules are similar in texture and size to some terrestrial bacterially induced carbonate precipitates. Although inorganic formation is possible, formation of the globules by biogenic processes could explain many of the observed features, including the PAHs. The PAHs, the carbonate globules, and their associated secondary mineral phases and textures could thus be fossil remains of a past martian biota
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