Coseismic and postseismic slip models of the 2011 Van earthquake, Turkey, from InSAR, offset-tracking, MAI, and GPS observations

Wang, Chisheng; Ding, Xiaoli; Li, Qingquan; Shan, Xinjian; Zhu, Wu; Liu, Peng

doi:10.1016/j.jog.2015.08.006

Cited by 17 publications

(26 citation statements)

References 23 publications

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“…The backthrust is marked as a dashed line, as is the possible lakewards extension of the BF. We infer from the topography that in the east the fault motion collapses back onto a single strand (connected by a dashed line), consistent with the trace mapped by Dogan et al (2014) and Wang et al (2015). The inset shows the zoom of the northern Van city, with trace of the Bostaniçi splay fault visible in the SRTM elevation data (marked with black triangles).…”

Section: Splay Faultsupporting

confidence: 87%

“…Thus it is likely that the M W 5.7 on 9th November occurred on a north dipping fault plane off the shore of Lake Van near the town of Edremit, though the fringes we observe suggest a location closer to Van city than the published seismological locations from the USGS and Irmak et al (2012). This is consistent with the model of Wang et al (2015) based on the TSX1 and ASAR2 interferograms.…”

Section: Post-seismic Insarsupporting

confidence: 86%

“…InSAR, seismology, GPS and combined solutions Irmak et al 2012;Dogan & Karakaş 2013;Elliott et al 2013;Fielding et al 2013;Gallovic et al 2013;Feng et al 2014;Moro et al 2014;Zahradnik & Sokos 2014;Wang et al 2015), broadly agree that the earthquake occurred on a steep north dipping (40-55 • ) fault, with a small left lateral component. The upper extent of slip is generally agreed to be 7-10 km depth.…”

Section: The 2011 October 23 Van Earthquakementioning

confidence: 69%

“…The pattern of uplift is consistent with the field observations of Emre et al (2011), who observed uplift of the lake shore (inferred from the height of shoreline boulder deposits) of up to ∼40 cm near the village of Dagönü. The source models of Elliott et al (2013), Zahradnik & Sokos (2014) and Wang et al (2015) go further in breaking the rupture into two smaller discrete patches of slip or sub-events, possibly on two fault segments aligned to two geomorphic scarps.…”

Section: The 2011 October 23 Van Earthquakementioning

confidence: 99%

“…Post-seismic slip on a southern fault strand, within the northern suburbs of Van city, was imaged using the TSX1 interferogram by Dogan et al (2014) and Wang et al (2015). Reprocessing this interferogram with minimal downsampling (below) enabled us to show that this displacement occurred within a zone no more than ∼200 m wide, which we targeted for field investigation.…”

Section: Splay Faultmentioning

confidence: 99%

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Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

Mackenzie¹,

Elliott²,

Altunel

et al. 2016

Geophys. J. Int.

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S U M M A R YThe 2011 October 23 M W 7.1 Van earthquake in eastern Turkey caused ∼600 deaths and caused widespread damage and economic loss. The seismogenic rupture was restricted to 10-25 km in depth, but aseismic surface creep, coincident with outcrop fault exposures, was observed in the hours to months after the earthquake. We combine observations from radar interferometry, seismology, geomorphology and Quaternary dating to investigate the geological slip rate and seismotectonic context of the Van earthquake, and assess the implications for continuing seismic hazard in the region. Transient post-seismic slip on the upper Van fault started immediately following the earthquake, and decayed over a period of weeks; it may not fully account for our long-term surface slip-rate estimate of ≥0.5 mm yr −1 . Post-seismic slip on the Bostaniçi splay fault initiated several days to weeks after the main shock, and we infer that it may have followed the M W 5.9 aftershock on the 9th November. The Van earthquake shows that updip segmentation can be important in arresting seismic ruptures on dip-slip faults. Two large, shallow aftershocks show that the upper 10 km of crust can sustain significant earthquakes, and significant slip is observed to have reached the surface in the late Quaternary, so there may be a continuing seismic hazard from the upper Van fault and the associated splay. The wavelength of folding in the hanging wall of the Van fault is dominated by the structure in the upper 10 km of the crust, masking the effect of deeper seismogenic structures. Thus, models of subsurface faulting based solely on surface folding and faulting in regions of reverse faulting may underestimate the full depth extent of seismogenic structures in the region. In measuring the cumulative post-seismic offsets to anthropogenic structures, we show that Structure-from-Motion can be rapidly deployed to create snapshots of postseismic displacement. We also demonstrate the utility of declassified Corona mission imagery (1960s-1970s) for geomorphic mapping in areas where recent urbanization has concealed the geomorphic markers.

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Section: Splay Faultsupporting

confidence: 87%

Section: Post-seismic Insarsupporting

confidence: 86%

Section: The 2011 October 23 Van Earthquakementioning

confidence: 69%

Section: The 2011 October 23 Van Earthquakementioning

confidence: 99%

Section: Splay Faultmentioning

confidence: 99%

See 3 more Smart Citations

Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

Mackenzie¹,

Elliott²,

Altunel

et al. 2016

Geophys. J. Int.

View full text Add to dashboard Cite

show abstract

The Importance of Atmospheric Corrections on InSAR Surveys Over Turkey: Case Study of Tectonic Deformation of Bodrum-Kos Earthquake

Doğru

2020

Pure Appl. Geophys.

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Impact of earthquake source complexity and land elevation data resolution on tsunami hazard assessment and fatality estimation

Muhammad

Goda

2018

Computers & Geosciences

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Coseismic and postseismic slip models of the 2011 Van earthquake, Turkey, from InSAR, offset-tracking, MAI, and GPS observations

Cited by 17 publications

References 23 publications

Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

The Importance of Atmospheric Corrections on InSAR Surveys Over Turkey: Case Study of Tectonic Deformation of Bodrum-Kos Earthquake

Impact of earthquake source complexity and land elevation data resolution on tsunami hazard assessment and fatality estimation

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Coseismic and postseismic slip models of the 2011 Van earthquake, Turkey, from InSAR, offset-tracking, MAI, and GPS observations

Cited by 17 publications

References 23 publications

Seismotectonics and rupture process of theMW 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

Seismotectonics and rupture process of theMW 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

The Importance of Atmospheric Corrections on InSAR Surveys Over Turkey: Case Study of Tectonic Deformation of Bodrum-Kos Earthquake

Impact of earthquake source complexity and land elevation data resolution on tsunami hazard assessment and fatality estimation

Contact Info

Product

Resources

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Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening

Seismotectonics and rupture process of theM_W 7.1 2011 Van reverse-faulting earthquake, eastern Turkey, and implications for hazard in regions of distributed shortening