Holocene deformation of a transform zone: paleoseismological and morphotectonics studies of the Húsavík-Flatey Fault in the Tjörnes Fracture Zone in North Iceland ...
Understanding the geometry, the earthquake history and the rate of defor- mation of a fault is crucial to assess the seismic behaviour of active faults. In particular, Oceanic Transform Faults (OTFs) lie at the bottom of the oceans, making it difficult to study their long-term behaviour. The Hu ́sav...
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| Format: | Doctoral or Postdoctoral Thesis |
| Language: | unknown |
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KAUST Research Repository
2023
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| Online Access: | https://dx.doi.org/10.25781/kaust-hx243 https://repository.kaust.edu.sa/handle/10754/696576 |
| Summary: | Understanding the geometry, the earthquake history and the rate of defor- mation of a fault is crucial to assess the seismic behaviour of active faults. In particular, Oceanic Transform Faults (OTFs) lie at the bottom of the oceans, making it difficult to study their long-term behaviour. The Hu ́sav ́ık Flatey Fault (HFF) in North Iceland is a partially exposed OTF and therefore is a good labo- ratory to study the characteristics of an OTF. In this study, we conduct the first paleoseismological and morphotectonic study of the HFF and provide information on the earthquake history and slip rate of the fault. In the first part, we investigate the occurrence of past earthquakes on the HFF by building the first earthquake catalogue of the HFF for the Holocene period. To do so, we excavated paleoseismological trenches in two locations along the HFF to identify past earthquakes and constrain their timing. Our catalogue suggests a periodic behaviour of the seismicity along the HFF with a return time of a ... |
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