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Titel |
Patterns of fault interactions triggered by micro earthquake activity |
VerfasserIn |
Vasiliki Mouslopoulou, Dionissios Hristopulos |
Konferenz |
EGU General Assembly 2010
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Medientyp |
Artikel
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Sprache |
Englisch
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 12 (2010) |
Datensatznummer |
250034099
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Zusammenfassung |
Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake sequence, which occurred within the active Taupo Rift in New Zealand, provides a unique opportunity to chart spatial and temporal patterns of earthquakes along individual faults, between neighbouring faults and within the entire fault system over timescales of days to years. This is due to the accurate relocation of 2563 small to moderate size earthquakes (15.5) that occurred over thousand-year timescales (e.g. <60 kyr). Therefore, if the origin of small-to-moderate-sized earthquakes in the rift is indeed tectonic and fault interaction is a scale invariant process, it may be possible to constrain better the occurrence of large earthquakes by analysing widely available microearthquake data. |
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