SCEC Community Stress Model (CSM) Workshop
Conveners: Jeanne Hardebeck, Thorsten Becker, Karen Luttrell, Patricia Persaud, and Joann Stock
Dates: January 15-16, 2019
Location: Kellogg West Conference Center, Pomona, California
SCEC Award and Report (when available): 18132
SUMMARY: At this workshop, we will plan a coordinated research approach to further the development of the SCEC Community Stress Model (CSM). The CSM has made considerable progress in compiling stress orientation models and stressing rate models for the upper crust, and we will plan how to build on these efforts going forward. We will focus on five research themes that are key for future progress: (1) physics-based models of stress in the lithosphere, (2) borehole stress indicators, (3) absolute stress, (4) stress heterogeneity, and (5) user needs, model validation, and uncertainty. Workshop participants will discuss the current status of research on each theme, and identify what is needed to make progress with respect to the CSM. A small number of invited talks on each theme will be followed by group discussions to identify needs and opportunities.
Presentation slides may be downloaded by clicking the links following the title. PLEASE NOTE: Files are the author’s property. They may contain unpublished or preliminary information and should only be used while viewing the talk.
TUESDAY, JANUARY 15, 2019
07:30 - 08:30 | Breakfast in Dining Hall | |
09:00 - 09:30 | Workshop Check-In | |
09:30 - 10:00 | Welcome and Overview of Workshop Objectives (PDF, 630KB) | Karen Luttrell |
Session 1: Physics-based Models of Stress in the Lithosphere Moderator Patricia Persaud and Reporter Karen Luttrell |
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10:00 - 10:20 | Dynamics of the Plate Boundary Zone in Western North America: Oligocene to the present (PDF, 7.6MB) | Bill Holt |
10:20 - 10:40 | Impact of lithospheric strength distribution on India-Eurasia deformation from 2-D and 3-D geodynamic models | Lucy Flesch |
10:40 - 11:00 | Considering fault interaction in estimates of stress in the San Gorgonio Pass region, southern California (PDF, 2.5MB) | Jenn Hatch |
11:00 - 11:20 | Break | |
11:20 - 12:00 | Discussion: needs and opportunities | All |
12:00 - 13:00 | Lunch | |
Session 2: Borehole Stress Indicators Moderator Karen Luttrell and Reporter Joann Stock |
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13:00 - 13:20 | Techniques for Stress Field Constraints from Boreholes (PDF, 5.2MB) | Joann Stock |
13:20 - 13:40 | Implications of Borehole-Derived Stress Constraints for Fault Slip and Stress Heterogeneity beneath the Santa Barbara Channel | Patricia Persaud |
13:40 - 14:00 | Stress estimates from geologic indicators; examples (and limitations) from Southern California examples (PDF, 7.4MB) | Jim Evans |
14:00 - 14:40 | Discussion: needs and opportunities | All |
14:40 - 15:00 | Break | |
Session 3: Absolute Stress Moderator Joann Stock and Reporter Patricia Persaud |
All | |
15:00 - 15:20 | Using local topography to constrain absolute stress (PDF, 2.5MB) | Karen Luttrell |
15:20 - 15:40 | What allows seismic events to grow big? Insights from b-value and stress variations during laboratory experiments and tectonic earthquake sequences (PDF, 2.0MB) | Thomas Goebel |
15:40 - 16:00 | Modeling the low-heat, low-stress operation of mature faults | Valere Lambert |
16:00 - 16:40 | Discussion: needs and opportunities | All |
16:40 - 17:00 | Wrap-up for the day | |
18:30 - 20:30 | Dinner in Dining Hall |
WEDNESDAY, JANUARY 16, 2019
07:30 - 08:30 | Breakfast in Dining Hall | |
09:30 - 10:00 | Update on larger CXM effort (PDF, 3.0MB) | Liz Hearn |
Session 4: Stress Heterogeneity Moderator Joann Stock and Reporter Patricia Persaud |
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10:00 - 10:20 | Quantifying the heterogeneity of the stress field derived from local and global borehole data (PDF, 3.8MB) | Martin Schoenball |
10:20 - 10:40 | Stress Patterns in the San Jacinto Fault Zone and South Central Transverse Ranges (PDF, 4.6MB) | Niloufar Abolfathian |
10:40 - 11:00 | Stress heterogeneity and dynamic rupture along geometrically complex faults (PDF, 5.5MB) | Benchun Duan |
11:00 - 11:20 | Break | |
11:20 - 12:00 | Discussion: needs and opportunities | All |
12:00 - 13:00 | Lunch | |
Session 5: User Needs, Model Validation, and Uncertainty Moderator Karen Luttrell and Reporter Joann Stock |
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13:00 - 13:20 | Stress setup for dynamic rupture modeling: Effects and needs/wants | Julian Lozos |
13:20 - 13:40 | Predictions of the brittle-ductile transition and lithospheric stress from viscoelastic earthquake cycle simulations (PDF, 3.6MB) | Kali Allison |
14:00 - 14:40 | Discussion: needs and opportunities | All |
14:40 - 15:00 | Break | |
Session 6: Next Steps Moderator Patricia Persaud and Reporter Karen Luttrell |
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15:00 - 16:30 | Discussion: CSM Research Plan | All |
16:30 | Workshop Adjourns |
PARTICIPANTS
*Kali Allison (U Maryland)
*Alireza Bahadori (Stony Brook)
*Thorsten Becker (UT Austin)
Peter Bird (UCLA)
*Michele Cooke (UMass)
*Benchun Duan (Texas A&M)
Jim Evans (Utah State)
*Lucy Flesch (Purdue)
*Thomas Goebel (UC Santa Cruz)
*Jenn Hatch (UMass)
Liz Hearn (Capstone)
Bill Holt (Stony Brook)
Tran Huynh (USC)
Valere Lambert (Caltech)
Zefeng Li (Caltech)
*Dunyu Liu (Texas A&M)
Julian Lozos (Northridge)
Jens-Erik Lund Snee (Stanford)
Karen Luttrell (LSU)
*Edric Pauk (USC)
Patricia Persaud (LSU)
Daisuke Sato (DPRI, Kyoto)
Martin Schoenball (LBNL)
Joann Stock (Caltech)
*Ylona Van Dinther (ETH Zurich)
*Remote Participants