Triggered Slow Slip and Afterslip on the Southern Hikurangi Subduction Zone Following the Kaikōura Earthquake
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- Laura M. Wallace
- GNS Science Lower Hutt New Zealand
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- Sigrún Hreinsdóttir
- GNS Science Lower Hutt New Zealand
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- Susan Ellis
- GNS Science Lower Hutt New Zealand
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- Ian Hamling
- GNS Science Lower Hutt New Zealand
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- Elisabetta D'Anastasio
- GNS Science Lower Hutt New Zealand
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- Paul Denys
- Surveying School University of Otago Dunedin New Zealand
書誌事項
- 公開日
- 2018-05-21
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/2018gl077385
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>The 2016 M<jats:sub>W</jats:sub>7.8 Kaikōura earthquake ruptured a complex sequence of strike‐slip and reverse faults in New Zealand's northeastern South Island. In the months following the earthquake, time‐dependent inversions of Global Positioning System and interferometric synthetic aperture radar data reveal up to 0.5 m of afterslip on the subduction interface beneath the northern South Island underlying the crustal faults that ruptured in the earthquake. This is clear evidence that the far southern end of the Hikurangi subduction zone accommodates plate motion. The M<jats:sub>W</jats:sub>7.8 earthquake also triggered widespread slow slip over much of the subduction zone beneath the North Island. The triggered slow slip included immediate triggering of shallow (<15 km), short (2–3 weeks) slow slip events along much of the east coast, and deep (>30 km), long‐term (>1 year) slow slip beneath the southern North Island. The southern Hikurangi slow slip was likely triggered by large (0.5–1.0 MPa) static Coulomb stress increases.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 45 (10), 4710-4718, 2018-05-21
Wiley
