The Holocene activity of the Rodià Fault, Central Greece

Caputo, Riccardo; Helly, Bruno

doi:10.1016/j.jog.2005.07.004

Cited by 24 publications

(34 citation statements)

References 13 publications

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“…On the basis of all the above, the most recent past activations of the ERZ (excluding events of ground cracking like E1a), have an average recurrence interval of at least 3195 years. This result is in general agreement with the slow deformation rates in broader Thessaly and millennial-scale earthquake recurrence periods proposed from previous paleoseismological results in NW Thessaly; namely, those of Caputo and Helly [2005], which place the last event of the Rodia fault (R in Figure 1b) at about 2-3 kyr B.P., and of Caputo et al [2006], who propose recurrence intervals of 2-4 kyr (or 1.5-3 kyr in an alternative interpretation involving smallermagnitude earthquakes) at the Tyrnavos fault (T in Figure 1b).…”

Section: Constraints On Recurrence Intervals and Slip Ratesupporting

confidence: 92%

“…The historical seismicity record for Thessaly is certainly incomplete prior to A.D. 1621 and generally does not allow for reliable association of historical earthquakes with a specific fault zone [ Papadopoulos , 1992; Caputo and Helly , 2005]. The only information available for the 1954 seismogenic fault zone specifically is that it apparently has not given a 1954‐like earthquake in the past 200–300 years [ Papadopoulos , 1992; Caputo et al , 2006]; see Figure 1b.…”

Section: Introductionmentioning

confidence: 99%

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Paleoseismological investigation of the oblique‐normal Ekkara ground rupture zone accompanying theM6.7–7.0 earthquake on 30 April 1954 in Thessaly, Greece: Archaeological and geochronological constraints on ground rupture recurrence

Palyvos

Pavlopoulos

Froussou³

et al. 2010

J. Geophys. Res.

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Observations in trenches excavated across the Ekkara rupture zone (ERZ), the longest of the sporadic ground ruptures that accompanied the M 6.7–7.0 earthquake of 30 April 1954 on the Domokos fault zone (DFZ), identify a left‐lateral oblique‐normal fault with a slip vector aligned with the regional extension direction (verifying the tectonic origin of the ERZ). The paleoseismological interpretation of stratigraphic, soil‐stratigraphic, and tectonic features is discussed with emphasis on the issues related to strongly oblique fault kinematics. Two pre‐1954 events of ground rupture are recognized (E1 and E2) and an event of ground cracking only (E1a, shortly after E1). Event E2 was accompanied by larger displacement than E1 and 1954, but this does not necessarily imply a stronger earthquake. Archaeological dating of transported ceramic sherds constrains E1 between 6750 and 4450 B.P. (more likely, 6450–5750 B.P.). Luminescence dating of colluvial deposits and 14C dating of pedogenic carbonates (stone coatings) place E2 at ∼17,500 +− ∼2500 B.P. (preferred age). In the (hazard‐wise) most conservative interpretation, recent recurrence intervals of ERZ activations exceed 3195 years. The sporadic nature of the 1954 ruptures precludes certainty on whether the ERZ has recorded every past activation of the DFZ unless data are also collected from other DFZ rupture zones. Minimum‐limiting estimates of 0.3–0.5 mm/yr slip rate are derived for the ERZ, and the true slip rate is not expected to exceed 1 mm/yr. Slip rate estimates for the ERZ may be minima for the DFZ slip rate, however, because coseismic deformation in the past may have been distributed to more than one rupture zones at the surface.

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Section: Constraints On Recurrence Intervals and Slip Ratesupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Paleoseismological investigation of the oblique‐normal Ekkara ground rupture zone accompanying theM6.7–7.0 earthquake on 30 April 1954 in Thessaly, Greece: Archaeological and geochronological constraints on ground rupture recurrence

Palyvos

Pavlopoulos

Froussou³

et al. 2010

J. Geophys. Res.

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“… (a) Example of palaeoseismological trench (modified from Caputo & Helly 2005) showing a complex coseismic rupture geometry. (b) The palinspastic restoration immediately after the linear morphogenic event allows to recognize the occurrence of local effects (viz.…”

Section: Discussionmentioning

confidence: 99%

“…(2004); Ch05: Chatzipetros et al . (2005); CH95: Caputo and Helly (2005); Ch98: Chatzipetros et al . (1998); Ci97: Cinti et al .…”

Section: Seismic Cataloguesmentioning

confidence: 99%

Magnitude distribution of linear morphogenic earthquakes in the Mediterranean region: insights from palaeoseismological and historical data

Caputo

Mucciarelli

Pavlides

2008

Geophysical Journal International

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We analyse the earthquake magnitude distribution of ‘linear morphogenic earthquakes’ that reactivated dip‐slip normal faults within the Mediterranean region. Information on past events is obtained following two distinct methodological approaches: the geological one (morphotectonic investigations and palaeoseismological excavations) and the historical one (contemporaneous descriptions and surveys of coseismic ruptures). In order to homogenize the different data sets, and, therefore, enabling a comparison, we calculate moment magnitudes (Mw) starting from seismic moments (M0) estimates. The cumulative distributions thus obtained for the two data sets show differences that a series of non‐parametric tests suggests to be statistically significant. Coseismic displacements are systematically overestimated for strong (Mw > 6.5) historically based earthquakes and for moderate (5.0–6.0) palaeoseismologically observed events. Also concerning the rupture length, the geological information generally provides larger values for moderate earthquakes. The possible causes of this discrepancy and the consequences in using the two data sets for seismic hazard assessment analyses are also discussed.

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“…In palaeoseismological investigations carried out along the Tyrnavos and the Rodia faults, Central Greece, Caputo et al (2004) and Caputo and Helly (2005a) reported TL, OSL and AMS ages from numerous trenches and quantified the most important seismotectonic parameters.…”

Section: Introductionmentioning

confidence: 99%

Application of Osl Method in Dating Past Earthquakes

et al. 2017

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The aim of this study was to establish a chronological frame of paleoseismic events of Gyrtoni Fault, (Thessaly, Central Greece), with the use of OSL dating method. The Gyrtoni Fault, defines the north-eastern boundary of the Middle-Late Quaternary Tyrnavos Basin, and was previously investigated with geological methods. Twenty five fluvial-colluvial sediment and pottery samples were collected from two paleoseismological trenches, excavated along the Gyrtoni Fault, from both the upthrown and the downthrown fault blocks. Optically Stimulated Luminescence (OSL) dating was applied to coarse grain quartz using the single-aliquot regenerative-dose (SAR) protocol. Investigations of luminescence characteristics using various tests confirmed the suitability of the material for OSL dating using the SAR protocol. Radioactivity measurements were performed in order to estimate the annual dose rateof the surrounding soils to which the quartz grains were submitted during the burial period of the collected samples. The estimated OSL ages agreed well with the available stratigraphical data, and archaeological evidence. The occurrence of three surface faulting events in a time span between 1.42 ± 0.06 ka and 5.59 ± 0.13 ka was revealed while an earlier faulting event (fourth) was also recognized to be older than 5.59 ± 0.13 ka.

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The Holocene activity of the Rodià Fault, Central Greece

Cited by 24 publications

References 13 publications

Paleoseismological investigation of the oblique‐normal Ekkara ground rupture zone accompanying theM6.7–7.0 earthquake on 30 April 1954 in Thessaly, Greece: Archaeological and geochronological constraints on ground rupture recurrence

Paleoseismological investigation of the oblique‐normal Ekkara ground rupture zone accompanying theM6.7–7.0 earthquake on 30 April 1954 in Thessaly, Greece: Archaeological and geochronological constraints on ground rupture recurrence

Magnitude distribution of linear morphogenic earthquakes in the Mediterranean region: insights from palaeoseismological and historical data

Application of Osl Method in Dating Past Earthquakes

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