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Comprehensive Research Needs in Paleoseismicity and Geologic Studies

This document outlines crucial research needs in paleoseismicity, focusing on paleoliquefaction, historical data integration, and geological effects. It emphasizes identifying and incorporating uncertainties in magnitude assessments, the removal of multiple event data, and exploring Australian neo-tectonic features. The study aims to deepen our understanding of fault segmentation, strain rate data collection, and the significance of global analogues, with a focus on statistical analyses and comparisons of North American and global seismicity. Strain anomalies and advanced methodologies are also discussed to enhance future research outcomes.

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Comprehensive Research Needs in Paleoseismicity and Geologic Studies

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  1. Figure A15–1 Research Needs • Paleoseismicity data • Paleoliquefaction (field studies, interpretation, uncertainties) • Lake deposits • Fragile features • Historical data • Identification and information (newspapers, census data, etc.) • Analysis (site effects, intensity, etc) • Geologic effects • Global analogues • What is an analogue? (comparison of NA & global, subdivision of global, statistical tests) • Indentify and incorporate uncertainty in magnitude • Removal of multiple events from database • Bias corrections • Reactivation • Australian neo-tectonic features investigation • Study of reactivation to determine most likely fault types (CA foothills) • Wells & Coppersmith update for SCR • Strain rate data collection, lower crustal strain anomalies, LIDAR • Fault segmentation, DEM/Google earth investigations, triggered seismicity

  2. Method Resolutions Figure A15–2

  3. Method Resolutions Figure A15–3

  4. Prior NA analogue Global analogue Physical principals paleoseismic Likelihood function Mobs Instrumental Historical paleoseismic Statistical analyses Geologic Features (paleoseismic) Figure A15–4 Mmax Methods Global Analogues Bayesian

  5. Most appropriate for well characterized faults/sources Figure A15–5 Individual Methods Consideration for Weighting Method • Fault dimensions

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