Paleoseismological Studies

Kondo, Hisao; Owen, Lewis A.; Figueiredo, Paula

doi:10.1016/b978-0-12-818234-5.00156-5

Cited by 3 publications

(2 citation statements)

References 313 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is the case of the Southern Calabrian Arc, in the area between the Catanzaro Basin and the Messina Strait, which, after a paroxysmal activity, with six M w 6.5-7 events in 125 years from 1783 to 1908 and other two M w 6 events in 1791 and 1894 [1,[13][14][15], has only experienced small events with a few minor isolated sequences (M w < 4.5) [16]. Therefore, in such cases, the burden of identifying the potential seismogenic faults must prevailingly rest on field and paleoseismic data on active faults (e.g., [17][18][19][20][21][22][23][24][25][26][27][28][29]), geodetic information (e.g., [30][31][32][33]), and indirect information from the intensity fields distribution and historical reports (e.g., [34][35][36][37][38][39][40][41]).…”

Section: Introductionmentioning

confidence: 99%

Reappraisal and Analysis of Macroseismic Data for Seismotectonic Purposes: The Strong Earthquakes of Southern Calabria, Italy

et al. 2023

View full text Add to dashboard Cite

In tectonically active areas, such as the Italian peninsula, studying the faults responsible for strong earthquakes is often challenging, especially when the earthquakes occurred in historical times. In such cases, geoscientists need to integrate all the available information from historical reports, surface geology, and geophysics to constrain the faults responsible for the earthquakes from a seismotectonic point of view. In this paper, we update and review, according to the EMS-98 scale, the macroseismic fields of the five main events of the 1783 Calabria sequence (5, 6, and 7 February, 1 and 28 March, Mw 5.9 to 7.1), two other destructive events within the same epicentral area of the 1783 sequence (1791, Mw 6.1 and 1894, Mw 6.1), plus the Messina Strait 1908 earthquake (Mw 7.1). For the 1783 seismic sequence, we also elaborate an updated and new catalog of coseismic effects. The new macroseismic fields were analyzed using a series of MATLAB algorithms to identify (1) the unitarity of the field or its partitioning in sub-sources and (2) the field and sub-fields’ main elongation. A collection of earthquake scale laws from literature was used to compute the average source parameters (length, width, and area) with their range of variability, and an elliptical map-view representation of the source geometry was calculated and made available. The analyses of such data allow us to speculate on the earthquakes/faults association, as well as propose new interpretations and reconstruct the space–time evolution of the significant southern Calabria seismic sequences in the last five centuries.

show abstract

Section: Introductionmentioning

confidence: 99%

Reappraisal and Analysis of Macroseismic Data for Seismotectonic Purposes: The Strong Earthquakes of Southern Calabria, Italy

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The International Atomic Energy Agency (2010) proposes guidelines to distinguish active structures depending on the tectonic setting, considering an Upper Pleistocene-Holocene time frame in interplate regions and a Pliocene-Quaternary time frame in intraplate regions.Since instrumental data acquired via seismometers, satellite images, and Global Satellite Navigation Systems (GNSS) is only available for the last few decades, dating of recent brittle deformation can help determine whether a fault is (potentially) active. The most common techniques for nding the age of brittle deformation episodes in fault zones are either dating deformation associated with earthquakes in displaced or deformed soft sediments with luminescence or radiocarbon methods (e.g., McCalpin, 2009;Kondo et al, 2022), dating aseismically formed precipitations such as calcite veins and bers using U/Th…”

mentioning

confidence: 99%

Not too old to rock: ESR and OSL dating methods reveal Quaternary activity of the Periadriatic Fault

Prince

Tsukamoto

Grützner

et al. 2023

Preprint

View full text Add to dashboard Cite

The Periadriatic Fault System (PAF) ranks among the largest post-collisional structures of the European Alps. Recent Global Satellite Navigation Systems data suggest that a fraction of the Adria-Europe convergence is still being accommodated in the Eastern Alps. However, the historical seismicity records along the easternmost segment of the PAF are ambiguous and instrumental records indicate that seismotectonic deformation is mostly concentrated in the adjacent Southern Alps and adjacent Dinarides. Both Electron Spin Resonance (ESR) and Optically Stimulated Luminescence (OSL) dating methods can be used as ultra-low temperature thermochronometers. Due to their dating range (a few decades to ~ 2 Ma) and low closure temperature (below 100°C), the methods have the potential for dating shear heating during earthquakes in slowly deforming fault zones, such as the PAF. Since the saturation dose of the quartz ESR signals is larger than quartz and feldspar OSL, ESR enables establishing a maximum age of the events (assuming the resetting during seismic events was at least partial), while OSL allows finding their minimum age when the signal is in saturation. We collected fault gouge samples from 3 localities along the easternmost segment of the PAF. For ESR, we measured the signals from the Al center in quartz comparing the results from the single aliquot additive dose (SAAD) and single aliquot regenerative (SAR) protocols. For OSL, we measured the Infrared Stimulated Luminescence (IRSL) signal at 50°C (IR50) and the post-IR IRSL signal at 225°C (pIRIR225) on potassium feldspar aliquots. Our dating results indicate that the studied segment of the PAF system accommodated seismotectonic deformation within a maximum age ranging from 1075 ± 48 to 541 ± 28 ka (ESR SAR) and minimum ages in the range from 196 ± 12 to 281 ± 16 ka (pIRIR225). The obtained ages and the current configuration of the structure suggest that the studied segment of the PAF could be considered at least as a potentially active fault.

show abstract

Not too old to rock: ESR and OSL dating reveal Quaternary activity of the Periadriatic Fault in the Alps

Prince,

Tsukamoto,

Grützner

et al. 2024

Earth Planets Space

View full text Add to dashboard Cite

The Periadriatic Fault system (PAF) ranks among the largest post-collisional structures of the European Alps. Recent geodetic data suggest that a fraction of the Adria–Europe convergence is still being accommodated in the Eastern Alps. However, the historical seismicity records along the easternmost segment of the PAF are ambiguous, and instrumental records indicate that seismotectonic deformation is mostly concentrated in the adjacent Southern Alps and Dinarides. Both electron spin resonance (ESR) and optically stimulated luminescence (OSL) dating methods can be used to date coseismic slip (with a combined range covering a few decades to a couple of million years) in slowly deforming fault zones, such as the PAF. Since the saturation doses of the quartz ESR signals are larger than quartz and feldspar OSL, ESR enables establishing a maximum age of the last resetting event of the system, while OSL allows constraining their minimum age when the signal is in saturation. We collected fault gouge samples from three localities along the easternmost segment of the PAF. For ESR, we measured the signals from the Al center in quartz comparing the results from the single aliquot additive dose (SAAD) and single aliquot regenerative (SAR) dose protocols. For OSL, we recorded the infrared stimulated luminescence signal at 50°C (IR50) and post-infrared infrared-stimulated luminescence signal at 225 °C (pIRIR225). Our dating results indicate that the studied segment of the PAF system accommodated seismotectonic deformation during the Quaternary, with a maximum age for the last resetting event of the system ranging from 1075 ± 48 to 552 ± 26 ka (ESR SAR) and minimum ages in the range from 196 ± 12 to 281 ± 16 ka (saturation of pIRIR225). The obtained ages suggest that the studied segment of the PAF could be considered at least as a potentially active fault. Graphical abstract

show abstract

Paleoseismological Studies

Cited by 3 publications

References 313 publications

Reappraisal and Analysis of Macroseismic Data for Seismotectonic Purposes: The Strong Earthquakes of Southern Calabria, Italy

Reappraisal and Analysis of Macroseismic Data for Seismotectonic Purposes: The Strong Earthquakes of Southern Calabria, Italy

Not too old to rock: ESR and OSL dating methods reveal Quaternary activity of the Periadriatic Fault

Not too old to rock: ESR and OSL dating reveal Quaternary activity of the Periadriatic Fault in the Alps

Contact Info

Product

Resources

About