Jeffery Unruh
Lettis Consultants International, Concord, CA
Activity
2025
-
ASSESSMENT OF GEOLOGIC CONDITIONS AT THE THERMALITO DAM COMPLEX, CALIFORNIA
36 Earthquake Hazards in Applied Geology (Posters)Friday, 4 April 20258:00 AM - 4:00 PMSierra Ballroom
2021
-
THE PECULIAR CASE OF DEEP SIERRAN EARTHQUAKES
8 Understanding the Sierra Nevada Through New Regional Geologic and Geophysical Syntheses IIThursday, 13 May 20218:30 AM - 12:30 PMUNR Centers for Transformative Monitoring Programs (CTEMPS) Room
2020
-
COMPOSITE UPPER CRUSTAL SECTION OF A NASCENT METAMORPHIC CORE COMPLEX IN A TRANSTENSIONAL REGIME, COSO RANGE, CALIFORNIA
30 Geology and Geophysics of the Coso Geothermal Field and Source Area of the 2019 Ridgecrest Earthquake Sequence I: A Tribute to the Career of Francis C. (“Frank”) MonasteroThursday, 14 May 20208:00 AM - 12:00 PMMadera Room
2019
-
ANATOMY OF A RELEASING STEPOVER BETWEEN THE AIRPORT LAKE FAULT AND THE OWENS VALLEY FAULT THROUGH THE COSO RANGE, CALIFORNIA
Late Breaking Session: Ten-Million Years of Deformation along the Eastern California Shear Zone: Context and Characterization of the July 2019 Mw7.1 Ridgecrest EarthquakeSunday, 22 September 20191:45 PM - 5:30 PMNorth Ballroom 120D, North Building
2017
-
A REGIONAL KINEMATIC MODEL FOR HAT CREEK GRABEN, SHASTA COUNTY, CALIFORNIA; EVIDENCE FOR NORTHWARD PROPAGATION OF THE NORTHERN WALKER LANE
T288 Challenges in Tectonics: Fault Zone Behavior through Time, from Earth’s Surface to the Upper Mantle (Posters)Tuesday, 24 October 20179:00 AM - 6:30 PMHalls 4EF
2013
-
SEISMOGENIC DEFORMATION BETWEEN THE SIERRAN MICROPLATE AND OREGON COAST BLOCK, CALIFORNIA, AND THE NORTHERN TERMINATION OF THE WALKER LANE BELT
23 Reconstructing the Pacific-North America Plate Boundary Through Late Cenozoic Time IITuesday, 21 May 20131:30 PM - 5:30 PMSalon A2
-
THE SOUTHERN SIERRA NEVADA FOOTHILLS BEDROCK PEDIMENT
20 Geomorphology and Quaternary GeologyTuesday, 21 May 20131:30 PM - 5:30 PMSalon D2
-
GEOLOGIC AND GEOMORPHIC CONSTRAINTS ON THE QUATERNARY SEPARATION RATE OF THE MIDLAND FAULT, SACRAMENTO-SAN JOAQUIN DELTA, CALIFORNIA
3 Quaternary Geology of California’s Central Valley and Its Relevance to Water InfrastructureMonday, 20 May 20138:20 AM - 12:00 PMSalon D1
-
GEOMORPHIC AND STRUCTURAL ANALYSIS OF THE VERONA-WILLIAMS-PLEASANTON FAULT ZONE AND IMPLICATIONS FOR SEISMIC HAZARD, EASTERN SAN FRANCISCO BAY AREA, CALIFORNIA
10 Reconstructing the Pacific-North America Plate Boundary Through Late Cenozoic Time (Posters)Monday, 20 May 20131:30 PM - 5:30 PMSalon B/C