Holocene record of slip-predictable earthquakes on the Kenchreai Fault, Gulf of Corinth, Greece

Koukouvelas, Ioannis; Zygouri, Vasiliki; Papadopoulos, G. A.; Verroios, Sotiris

doi:10.1016/j.jsg.2016.12.001

Cited by 28 publications

(25 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Offshore faults after Papanikolaou et al (), Bell et al (), Charalampakis et al (), Sakellariou et al (), and Zygouri et al (). Onshore faults after Goldsworthy et al (), Tsodoulos et al (), Papanikolaou, Triantaphyllou, et al (), Koukouvelas et al (), and our own fieldwork. Available extension rates are from Charalampakis et al (), Deligiannakis et al (), Koukouvelas et al (), and own observations.…”

Section: Introductionmentioning

confidence: 55%

“…In addition to the 1981 earthquake events, two major earthquakes on 22 April 1928 ( M b 6.3) and 21 February 1858 ( M 6.5) caused strong shaking in the eastern Corinth rift (Ambraseys & Jackson, ; Drakopoulos et al, ; Koukouvelas et al, ; Papazachos & Papaioannou, ). The area of shaking during both events was located south and southwest of the Pisia fault in the wider area around Corinth.…”

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

“…The reported shaking area, together with the observation of fallen blocks from the southern Gerania Mountains during the 1928 earthquake, suggests that a south‐dipping fault hosted this rupture (Drakopoulos et al, ). During the 1858 earthquake, enormous fallen blocks from Acrokorinthos and Oneia Mountains suggest a hypocenter on the Kenchreai fault (Koukouvelas et al, ). No indicators for historic earthquakes that ruptured the Pisia and Skinos faults are reported, except for the 1981 events.…”

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

See 2 more Smart Citations

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating

et al. 2018

View full text Add to dashboard Cite

The deformation of the eastern Corinth rift (Greece) is distributed along several E-W trending active normal faults. Here the 25-km-long Pisia fault experienced up to 150 cm of coseismic displacement during the 1981 Alkyonides earthquake sequence (M = 6.7, 6.4, 6.3). Using terrestrial laser scanning, coupled with analyses of color changes, lichen colonization, and karstic features, we identify differentially weathered horizontal stripes on the exposed Pisia fault plane. The stripe boundaries occur at scarp heights of 1.10, 2.05, 2.85, 3.60, 4.15, and 5.15 m, with two additional possible boundaries at 3.10 and 4.65 m (~±0.1 m, respectively). This indicates that six to eight paleoearthquakes have exhumed the fault plane in a series of distinct coseismic slip events. A vertical profile of cosmogenic 36 Cl measurements is used to constrain age models of the exhumation. The results imply that, in addition to the last earthquake of 1981 (EQ1), exhumation events occurred at~2.0 kyr (EQ2),~3.1 kyr (EQ3),~4.5 kyr (EQ4/4a,b),~6.0 kyr (EQ5), and~7.3 kyr (EQ6/6a,b), with modeled age uncertainties of~0.7 kyr. Bayesian modeling provides a middle and late Holocene slip rate of 0.5-0.6 mm/yr (last 7.3 ± 0.7 kyr), while the upper part of the 8.45-m-high fault plane was exhumed at a higher rate of 0.8-2.3 mm/yr (7.3 ± 0.7 kyr to 10.2 ± 1.9 kyr). This slip rate variability suggests an increased seismicity or larger slip events during the early Holocene.The most frequently applied technique for earthquake analysis on limestone bedrock fault scarps is exposure dating using cosmogenic 36 Cl (e.g., Zreda & Noller, 1998). A regular and dense distribution of 36 Cl samples can MECHERNICH ET AL. 4266

show abstract

Section: Introductionmentioning

confidence: 55%

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

See 1 more Smart Citation

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In addition to the 1981 earthquake events, two major earthquakes on April 22 1928 (M b 6.3) and February 21 1858 (M 6.5) caused strong shaking in the eastern Corinth rift [Drakopoulos et al, 1978;Ambraseys and Jackson, 1990;Papazachos and Papaioannou, 1997;Koukouvelas et al, 2017]. The area of shaking during both events was located south and southwest of the Pisia fault in the wider area around Corinth.…”

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

“…The reported shaking area, together with the observation of fallen blocks from the southern Gerania Mountains during the 1928 earthquake, suggests that a south-dipping fault hosted this rupture [Drakopoulos et al, 1978]. During the 1858 earthquake, enormous fallen blocks from Acrokorinthos and Oneia Mountains suggest a hypocenter on the Kenchreai fault [Koukouvelas et al, 2017]. No indicators for historic earthquakes that ruptured the Pisia and Skinos faults are reported, except for the 1981 events.…”

Section: Seismotectonic Context Of the Eastern Corinth Rift And The Pmentioning

confidence: 99%

The seismic history of the Pisia fault (eastern Corinth rift, Greece) from fault plane weathering features and cosmogenic 36Cl dating

Mechernich¹,

Schneiderwind²,

Mason³

et al. 2018

Preprint

View full text Add to dashboard Cite

The deformation of the eastern Corinth rift (Greece) is distributed along several E-W trending active normal faults. Here, the 25-km-long Pisia fault experienced up to 150 cm of coseismic displacement during the 1981 Alkyonides earthquake sequence (M = 6.7, 6.4, 6.3). Using terrestrial laser scanning, coupled with analyses of color changes, lichen colonization and karstic features, we identify differentially weathered horizontal stripes on the exposed Pisia fault plane. The stripe boundaries occur at scarp heights of 1.10 m, 2.05 m, 2.85 m, 3.60 m, 4.15 m, and 5.15 m, with two additional possible boundaries at 3.10 m and 4.65 m (ca. ± 0.1 m respectively). This indicates that six to eight paleoearthquakes have exhumed the fault plane in a series of distinct coseismic slip events. A vertical profile of cosmogenic 36Cl measurements is used to constrain age models of the exhumation. The results imply that, in addition to the last earthquake of 1981 (EQ1), exhumation events occurred at ~2.0 kyr (EQ2), ~3.1 kyr (EQ3), ~4.5 kyr (EQ4/4a,b), ~6.0 kyr (EQ5), and ~7.3 kyr (EQ6/6a,b), with modeled age uncertainties of ~0.7 kyr. Bayesian modeling provides a mid and late Holocene slip rate of 0.5-0.6 mm/yr (last 7.3 ± 0.7 kyr), while the upper part of the 8.45-m-high fault plane was exhumed at a higher rate of 0.8-2.3 mm/yr (7.3 ± 0.7 kyr to 10.2 ± 1.9 kyr). This slip rate variability suggests an increased seismicity or larger slip events during the early Holocene.

show abstract

Quaternary continental shelf basins of Saronikos Gulf, Aegean Sea

Foutrakis

Anastasakis

2020

Geo-Mar Lett

View full text Add to dashboard Cite

Holocene record of slip-predictable earthquakes on the Kenchreai Fault, Gulf of Corinth, Greece

Cited by 28 publications

References 59 publications

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating

The seismic history of the Pisia fault (eastern Corinth rift, Greece) from fault plane weathering features and cosmogenic 36Cl dating

Quaternary continental shelf basins of Saronikos Gulf, Aegean Sea

Contact Info

Product

Resources

About

Holocene record of slip-predictable earthquakes on the Kenchreai Fault, Gulf of Corinth, Greece

Cited by 28 publications

References 59 publications

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic36Cl Dating

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic36Cl Dating

The seismic history of the Pisia fault (eastern Corinth rift, Greece) from fault plane weathering features and cosmogenic 36Cl dating

Quaternary continental shelf basins of Saronikos Gulf, Aegean Sea

Contact Info

Product

Resources

About

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating

The Seismic History of the Pisia Fault (Eastern Corinth Rift, Greece) From Fault Plane Weathering Features and Cosmogenic³⁶Cl Dating