Session: The Multidisciplinary Approach of the Seismotectonics as a Key Tool to Expand Horizons on Faulting Process Understanding and to Address Effective Seismic Hazard Assessment I (GSA 2020 Connects Online)

Session No. 6

Monday, 26 October 2020: 1:30 PM-5:30 PM

T1. The Multidisciplinary Approach of the Seismotectonics as a Key Tool to Expand Horizons on Faulting Process Understanding and to Address Effective Seismic Hazard Assessment I

CRUST - Interuniversity Center for 3D Seismotectonics with Territorial Applications; GSA Geophysics and Geodynamics Division; GSA Structural Geology and Tectonics Division

Federica Ferrarini, Rita de Nardis and J Ramón Arrowsmith, Advocates

Paper #

Start Time

1:30 PM

Introductory Remarks

6-1

1:35 PM

STRUCTURAL GEOLOGY FOR SEISMOTECTONICS: AN INTERDISCIPLINARY 3D APPROACH (Invited Presentation)

LAVECCHIA, Giusy, CRUST- Centro Interuniversitario per l’Analisi Sismotettonica Tridimensionale, Italy, University "G. d'Annunzio" of Chieti-Pescara, Via dei Vestini, 31, Chieti, 66100, Italy; DiSPUTer, University "G. d'Annunzio" of Chieti-Pescara, Via dei Vestini, 31, Chieti, AZ 66100, Italy

6-2

1:50 PM

TECTONIC STRAIN RATES ACROSS THE CENTRAL ALPINE-HIMALAYAN BELT FROM SENTINEL-1 INSAR AND GNSS OBSERVATIONS, AND IMPLICATIONS FOR SEISMIC HAZARD

ROLLINS, Chris¹, WRIGHT, Tim J.¹, WEISS, Jonathan², HOOPER, Andrew J.¹, WALTERS, Richard J.³, LAZECKY, Milan¹, MAGHSOUDI MEHRANI, Yasser¹ and MORISHITA, Yu⁴, (1)COMET, University of Leeds, Leeds, United Kingdom, (2)Universitat Potsdam, Potsdam, Germany, (3)Durham University, Durham, United Kingdom, (4)COMET, University of Leeds, Leeds, United Kingdom; Geospatial Information Authority of Japan, Tsukuba, Japan

6-3

2:05 PM

INVERTING FAULT SLIP RATES ON COMPLEX FAULT SYSTEMS TO OBTAIN THE OPTIMAL SPATIAL DISTRIBUTION OF EARTHQUAKES

GEIST, Eric L. and PARSONS, Tom, U.S. Geological Survey, P.O. Box 158, Moffett Field, CA 94035

6-4

2:20 PM

SHOULD ALL OF NEPAL BE TREATED AS HAVING THE SAME EARTHQUAKE HAZARD?

SALDITCH, Leah, Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, STEIN, Seth A., Earth & Planetary Sciences, Northwestern University, Evanston, IL 60202 and HOUGH, Susan, South Pasadena, CA 91030

6-5

2:35 PM

GEOMETRY AND SEISMOGENIC BEHAVIOR OF THE MONTELLO BLIND THRUST (SOUTHEASTERN ALPS, ITALY) UNVEILED BY A HIGH-RESOLUTION SEISMIC NETWORK

ROMANO, Maria Adelaide¹, PERUZZA, Laura¹, GARBIN, Marco¹, PRIOLO, Enrico¹ and PICOTTI, Vincenzo², (1)National Institute of Oceanography and Applied Geophysics - OGS, Borgo Grotta Gigante, 42/C, Sgonico, 34010, Italy, (2)Department of Earth Sciences - Geological Institute, ETH, Zürich, 8092, Switzerland

2:50 PM

Break 1

6-6

3:05 PM

SHORT-TERM FAULTING BEHAVIOUR BY INCLUDING GREATER DETAIL IN EARTHQUAKE CATALOGUES: SOME CASE STUDIES IN NORTHERN AND CENTRAL APENNINES FAULT SYSTEMS (ITALY) (Invited Presentation)

VUAN, Alessandro, Seismological Research, National Institute of Oceanography and Applied Geophysics - OGS, Borgo Grotta Gigante 42c, Sgonico, 34010, Italy

6-7

3:20 PM

GEOLOGIC AND GEODETIC ANALYSES TO DEFINE THE LOCATION, CREEP, TRIGGERED SLIP, SLIP RATE, AND GEOMETRY WITHIN A VOLUMINOUS HIDDEN SPRING FAULT ZONE, SOUTHERN CALIFORNIA

RIEMANN, Rebekah A.¹, EVANS, James P.¹, JANECKE, Susanne¹, DONNELLAN, Andrea² and PARKER, Jay², (1)Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)Jet Propulsion Laboratory California Institute of Technology, National Aeronautics and Space Administration, Pasadena, CA 91109

6-8

3:35 PM

DEVELOPMENT OF A GEODETIC-BASED PROBABILISTIC FAULT DISPLACEMENT HAZARD ANALYSIS USING NEAR-FIELD GEODETIC IMAGING DATA: EXAMPLES FROM THE 2019 RIDGECREST SURFACE RUPTURE

MILLINER, C.M.¹, AVOUAC, J.², CHEN, Rui³, AATI, Saif², CHIOU, Brian⁴, DONNELLAN, Andrea⁵, DAWSON, Timothy E.⁶, MADUGO, Christopher⁷ and DOLAN, James F.⁸, (1)Geological Planetary Science, Caltech, Pasadena, CA 91125, (2)Division of Geological and Planetary Sciences, California Institute of Technology, MC170-25, Pasadena, CA 91125, (3)California Geological Survey, Sacramento, CA 95814, (4)Caltrans, San Francisco, CA 94612, (5)Jet Propulsion Laboratory California Institute of Technology, National Aeronautics and Space Administration, Pasadena, CA 91109, (6)California Geological Survey, 1900 S. Norfolk St., Suite 300, San Mateo, CA 94403, (7)Earth Consultants International, 1642 E. 4th Street, Santa Ana, CA 92701, (8)Dept Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740

6-9

3:50 PM

CONTINENTAL NORMAL FAULT EARTHQUAKES AND THEIR MAXIMUM MAGNITUDES

NEELY, James S., Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 and STEIN, Seth, Earth & Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3130

6-10

4:05 PM

LOCATING 1906 SAN FRANCISCO EARTHQUAKE SURFACE FAULT RUPTURES USING PGV OF GUIDED WAVES

CATCHINGS, Rufus, RYMER, M.J. and GOLDMAN, M.R., U.S. Geological Survey, Earthquake Science Center, P.O. Box 158, Moffett Field, CA 94035

4:20 PM

Break 2

6-11

4:35 PM

LIDAR REVEALS >150 KM OF ADDITIONAL FAULTS AND HOLOCENE RUPTURES IN NORTHEAST BASIN-AND-RANGE PROVINCE, N UTAH AND SE IDAHO

JÄNECKE, Susanne U., ELLIS, Nathaniel R., OAKS Jr., Robert Q., LEE, Carly M. and EVANS, James P., Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322

6-12

4:45 PM

INTEGRATED 2D GEOPHYSICAL MODELING OVER THE JUAN DE FUCA PLATE

ASHRAF, Asif and FILINA, Irina, Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588

6-13

4:55 PM

A GEOMORPHIC, STRATIGRAPHIC, AND STRUCTURAL STUDY OF TWO SECONDARY FAULTS IN THE TORLESSE FAULT ZONE

LOMBARDI, Cole P. and TOMBAUGH, Emma P., Department of Earth and Ocean Sciences, Tufts University, Medford, MA 02155

5:05 PM

Discussion

5:10 PM

Concluding Remarks

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