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<br /> <br />PROBABILISTIC SEISMIC HAZARD ANALYSIS <br />TROUT CREEK DAM PROJECT <br />NEAR BUENA VISTA, CHAFFEE COUNTY, COLORADO <br />TABLE OF CONTENTS <br />1. INTRODUCTION 1 <br />1.1 OBJECTIVES 1 <br />1.2 SCOPE OF STUDIES 2 <br />1.3 ACKNOWLEDGMENTS 4 <br />2. PROJECT DESCRIPTION AND LOCATION 5 <br />3. PREVIOUS WORK - REGIONAL SEISMOTECTONIC STUDIES 5 <br />4. REGIONAL TECTONICS 9 <br />4.1 RIO GRANDE RIFT 9 <br />4.2 TIMING OF TECTONIC EVENTS 11 <br />5. PROJECT TECTONIC SETTING 12 <br />5.1 PARK RANGE UPLIFT 12 <br />5.2 UPPER ARKANSAS VALLEY GRABEN 13 <br />5.3 TECTONIC HISTORY OF THE TROUT CREEK AREA 14 <br />6. SEISMICITY 16 <br />6.1 REGIONAL SEISMICITY l6 <br />6.1.1 Southern Rocky Mountains l7 <br />6.1.2 Rocky Mountain Arsenal 20 <br />6.1.3 Local Seismicity 2l <br />6.2 REGIONAL ZONATION 21 <br />6.3 SEISMICITY, TECTONICS AND FAULTING 22 <br />