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Home  /  Workshops  /  SCEC Community Stress Model (CSM) Workshop

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 They may contain unpublished or preliminary information and should only be used while viewing the talk.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
 
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
 
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
 
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
 
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
 
15:00 - 16:30 Discussion: CSM Research Plan All
16:30 Workshop Adjourns  

 

PARTICIPANTS

*Remote Participants