Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake
Abstract Following the 2016 Mw 7.8 Kaikoura earthquake, uncertainty over the nature of the coseismic rupture developed. Seismological evidence pointed to significant involvement of the subduction megathrust, while geodetic and field observations pointed to a shallow set of intracrustal faults as the...
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Wiley
2017-07-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1002/2017GL074365 |
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| author | Kevin P. Furlong Matthew Herman |
| author_facet | Kevin P. Furlong Matthew Herman |
| author_sort | Kevin P. Furlong |
| collection | DOAJ |
| description | Abstract Following the 2016 Mw 7.8 Kaikoura earthquake, uncertainty over the nature of the coseismic rupture developed. Seismological evidence pointed to significant involvement of the subduction megathrust, while geodetic and field observations pointed to a shallow set of intracrustal faults as the main participants during the earthquake. The addition of tsunami observations and modeling as reported in Bai et al. (2017, https://doi.org/10.1002/2017GL073717) places additional constraints on the specific location of coseismic slip, which when combined with other observations indicates the simultaneous occurrence of shallow slip on the subduction interface and slip on overlying, upper crustal fault structures. This Kaikoura‐style earthquake, involving synchronous ruptures on multiple components of the plate boundary, is an important mode of plate boundary deformation affecting seismic hazard along subduction zones. |
| format | Article |
| id | doaj-art-cfb96ae522ca428a99cb7939a6a3ac38 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2017-07-01 |
| publisher | Wiley |
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| series | Geophysical Research Letters |
| spelling | doaj-art-cfb96ae522ca428a99cb7939a6a3ac382025-08-20T01:51:46ZengWileyGeophysical Research Letters0094-82761944-80072017-07-0144136788679110.1002/2017GL074365Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquakeKevin P. Furlong0Matthew Herman1Department of Geosciences Pennsylvania State University University Park Pennsylvania USADepartment of Geosciences Pennsylvania State University University Park Pennsylvania USAAbstract Following the 2016 Mw 7.8 Kaikoura earthquake, uncertainty over the nature of the coseismic rupture developed. Seismological evidence pointed to significant involvement of the subduction megathrust, while geodetic and field observations pointed to a shallow set of intracrustal faults as the main participants during the earthquake. The addition of tsunami observations and modeling as reported in Bai et al. (2017, https://doi.org/10.1002/2017GL073717) places additional constraints on the specific location of coseismic slip, which when combined with other observations indicates the simultaneous occurrence of shallow slip on the subduction interface and slip on overlying, upper crustal fault structures. This Kaikoura‐style earthquake, involving synchronous ruptures on multiple components of the plate boundary, is an important mode of plate boundary deformation affecting seismic hazard along subduction zones.https://doi.org/10.1002/2017GL074365Kaikoura earthquaketsunamicomplex rupture |
| spellingShingle | Kevin P. Furlong Matthew Herman Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake Geophysical Research Letters Kaikoura earthquake tsunami complex rupture |
| title | Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake |
| title_full | Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake |
| title_fullStr | Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake |
| title_full_unstemmed | Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake |
| title_short | Reconciling the deformational dichotomy of the 2016 Mw 7.8 Kaikoura New Zealand earthquake |
| title_sort | reconciling the deformational dichotomy of the 2016 mw 7 8 kaikoura new zealand earthquake |
| topic | Kaikoura earthquake tsunami complex rupture |
| url | https://doi.org/10.1002/2017GL074365 |
| work_keys_str_mv | AT kevinpfurlong reconcilingthedeformationaldichotomyofthe2016mw78kaikouranewzealandearthquake AT matthewherman reconcilingthedeformationaldichotomyofthe2016mw78kaikouranewzealandearthquake |