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Short Abstracts Digital Volume December 18, 2020 10th International INQUA Meeting on Paleoseismology, Active Tectonics and Archeoseismology PATA, Hornitos, Chile, November 2021 Short abstracts digital volume December 18, 2020 Fondecyt 1201387 PREFACE During 2020 the humanity has been impacted by the most dramatic planetary scale health emergency in decades. Since the first announcement about the emergent pandemic (COVID-19) on December 2019 in Wuhan, China, more than 67 million people have been infected by the SARS-CoV-2 coronavirus and more than 1.5 million have been killed worldwide (Jones, N., Nature 588, 388-390, 17 December 2020). Temporary locKdowns, social distancing together with other actions to fight the pandemic strongly impacted daily routines of billions of persons, affecting the normal functioning of our societies. In addition, the average global temperature in 2020 is set to be about 1.2 ºC above the pre-industrial (1850-1900) level, according the World Meteorological Organization (2 December 2020). And the USGS reports about 128 significant earthquaKes occurred worldwide (where significant is a combination of magnitude, responses and impact of the earthquakes). Together with the loss of biodiversity, famine, water scarcity -that affects billions of persons-, war and increase of socioeconomic inequalities in numerous countries in the world, this scenario challenge-us, as humans. Scientific knowledge and collaboration, humankind and Human Rights become more necessary than ever. The 10th International INQUA meeting on Paleoseismology, Active Tectonics and Archaeoseismology, PATA, was originally programmed for November 2020 at Hornitos, in the hyperarid coastal Atacama Desert of northern Chile, a region considered as a seismic gap located along the subduction margin of the Nazca plate beneath the South American plate. Because of the pandemic, we moved the date of this meeting to November 2021, with the hope that we will have the opportunity to realize fieldtrips with the aim to visit some spectacular evidences of past megathrust earthquaKes and tsunamis, as well as Quaternary deformation associated to upper plate crustal faulting activity, discussing also the impact of recent and past socionatural disasters together with resilience strategies adopted by the first communities that inhabited this extreme environment. To maKe this volume, we received and compiled 75 short abstracts covering the topics of active tectonics, neotectonics, tectonic geomorphology, surface deformation, landslides, surface faulting, paleoseismology, archaeoseismology, tsunami and paleotsunami records, earthquake geology and seismic hazard, as a testimony of our persistence and compromise, as worldwide community of Earth Scientists, to contribute to maKing this a sustainable world. Hope to see you in the most arid environment worldwide, the coastal Atacama Desert, in 2021. PATA 2021 Chile Scientific Committee December 18, 2020 1 CONTENTS PREFACE ............................................................................................................................................................ 1 CONTENTS ......................................................................................................................................................... 2 Fault slip distribution along the southern 15 km of the M7.1 Ridgecrest earthquake surface rupture ................ 5 Mountain rivers reveal the earthquaKe hazard of geologic faults in Silicon Valley ............................................ 6 Crustal Faults and Surface-Rupturing EarthquaKes in The Andean Forearc: Quaternary Kinematics and Tectonic Loading of Southern Peru .................................................................................................................................... 7 The 11/11/2019 Mw4.9 Le Teil surface rupturing earthquake, a key event for understanding the recent activity of the Cévennes fault system (S. France) ............................................................................................................. 8 Vertical motion rates in southern Iberia: an overview from Last Interglacial coastal units. ............................... 9 Offshore tsunami bacKwash deposits – hints through biomarker analysis ........................................................ 10 Surface rupture of the great Andean earthquake in the Central Andes Forearc in ~AD 1400 .......................... 11 Geologic evidence of past liquefactions in fine-grained lacustrine sediments (Quaternary Fucino basin, central Italy): implications for liquefaction hazard ........................................................................................................ 12 Dropstone Deposition Process – Insight from Comprehensive Numerical Model ............................................ 13 Early postglacial faulting of glaciolacustrine sediments at Round LaKe, Ontario, Canada ............................... 14 Studying Ancient Tsunamis in the Geological Record in the Humid Tropics: Implications for Mexican Research ............................................................................................................................................................................ 15 Segmentation of long-lived strike-slip faults in intraplate regions: A case study of the Yangsan Fault in SE Korea .................................................................................................................................................................. 16 Variation in faulting characteristics within non-extended Stable Continental Region (SCR) crust .................. 17 Incas and EarthquaKes, a peculiar and overlooKed relationship. New insights from a pioneer archaeoseismological survey within the Cuzco region, Peru. ............................................................................ 18 Neotectonic evidence for Late Quaternary reverse faulting in the northern Chile outer forearc (22.5°S-23°S): implications for seismic hazard .......................................................................................................................... 19 Compiling hazardous faults in South America: Results and lessons learned from the SARA project .............. 20 Marine terraces and KnicKzones as proxies for uplift transients associated to megathrust earthquaKes ............ 21 New (And Quite Fast) Geologic Slip Rates Along Patagonia's Major and Oftentimes Concealed Crustal Strike- Slip Faults .......................................................................................................................................................... 22 Large landslides database along the Central Western Andes (15° - 20° S): constraints on mass-movement development and implications on relief evolution ............................................................................................. 23 Can the major Northern Chile Seismic Gap produce ~Mw 9.5 tsunamigenic earthquaKes? Unveiling past socionatural disasters from geoarchaeological records along the hyperarid Atacama Desert at multimillennial timescales ........................................................................................................................................................... 24 Offshore tsunami bacKwash deposits – a multi-proxy approach ....................................................................... 25 Middle-Late Pleistocene uplift of southwestern Sicily, central Mediterranean Sea: quantitative constraints on regional and local deformation processes based on raised paleoshorelines ....................................................... 26 Late Pleistocene and Holocene paleoseismology and deformation rates of the Pleasant Valley Fault (Nevada, USA) .................................................................................................................................................................. 27 2011 Tohoku-oki and the historical Sanriki-oki tsunami - organic geochemical investigation of multiple tsunami deposits at the Aomori coast (Northern Japan) .................................................................................................. 28 Multi-proxy investigation of the AD 1755 Lisbon tsunami deposits in Conil de la Frontera, Spain ................ 29 2 Spatial variations in rock uplift rates in the Colca River basin inferred from landscape analysis and river terraces dating, Central Andes ......................................................................................................................................... 30 Analysis of the Damage Orientation of the 1950 EarthquaKe in Cusco City ..................................................... 31 Collisional Indenter Tectonics of the Santa Ana Mountains and the Southern Los Angeles Basin, Orange County, California .............................................................................................................................................. 32 1909 Benavente Earthquake (Intensity X, Portugal): Seismic source determination through geological effects ............................................................................................................................................................................ 33 Paleoseismic evidence in multiple fault-branches across a transect of the Alhama de Murcia Fault (SE Spain) ............................................................................................................................................................................ 34 Slip rates variability along an irregular normal fault plane: Accelerated uplift accommodation during
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