dorsal/arxiv
View SchemaInfluence length and space-time correlation between earthquakes
| Authors | Patrizia Tosi, Valerio De Rubeis, Vittorio Loreto, Luciano Pietronero |
|---|---|
| Categories | |
| ArXiv ID | physics/0409033 |
| URL | https://arxiv.org/abs/physics/0409033 |
| Journal | "Space-time combined correlation integral and earthquake interactions", Annals of Geophysics, 47, 1849-1854, 2004 |
Abstract
Short and long range interactions between earthquakes are attracting increasing interest. Scale invariant properties of seismicity in time, space and energy argue for the presence of complex triggering mechanisms where, like a cascade process, each event produces aftershocks. A definitive method to assess any connection between two earthquakes separated in time and distance does not exist. Here we propose a novel method of data analysis that, based on the space-time combined generalization of the correlation integral leads to a self-consistent visualization and analysis of both spatial and temporal correlations. When analyzing global seismicity we discovered a universal relation linking the spatial Influence Length of a given earthquake to the time elapsed from the event itself. Following an event, time correlations (i.e. causality effects) exist in a region that shrinks over time, suggesting a long-range dissipating stress transfer. A different process is acting in the short-range where events are randomly set, evidencing a sub-diffusive growth of the seismogenic zone.
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"abstract": "Short and long range interactions between earthquakes are attracting\nincreasing interest. Scale invariant properties of seismicity in time, space\nand energy argue for the presence of complex triggering mechanisms where, like\na cascade process, each event produces aftershocks. A definitive method to\nassess any connection between two earthquakes separated in time and distance\ndoes not exist. Here we propose a novel method of data analysis that, based on\nthe space-time combined generalization of the correlation integral leads to a\nself-consistent visualization and analysis of both spatial and temporal\ncorrelations. When analyzing global seismicity we discovered a universal\nrelation linking the spatial Influence Length of a given earthquake to the time\nelapsed from the event itself. Following an event, time correlations (i.e.\ncausality effects) exist in a region that shrinks over time, suggesting a\nlong-range dissipating stress transfer. A different process is acting in the\nshort-range where events are randomly set, evidencing a sub-diffusive growth of\nthe seismogenic zone.",
"arxiv_id": "physics/0409033",
"authors": [
"Patrizia Tosi",
"Valerio De Rubeis",
"Vittorio Loreto",
"Luciano Pietronero"
],
"categories": [
"physics.geo-ph",
"cond-mat.stat-mech"
],
"journal_ref": "\"Space-time combined correlation integral and earthquake\n interactions\", Annals of Geophysics, 47, 1849-1854, 2004",
"title": "Influence length and space-time correlation between earthquakes",
"url": "https://arxiv.org/abs/physics/0409033"
},
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