1. 3D Rupture Dynamics Code Validation Workshop Ruth Harris and Ralph Archuleta Sept. 11, 2005 SCEC Workshop

2. 8:30-8:55 Workshop Introduction (Ruth Harris/Ralph Archuleta) 9:00-9:20Comparison of Two Spontaneous Rupture Methods (Steve Day /Luis Dalguer /Nadia Lapusta /Yi Liu) 9:25-9:45EQdyna: An explicit dynamic finite element code for modeling spontaneous rupture on a geometrically complex fault (Benchun Duan) 9:50-10:10 Break 10:10-11:30The Problem Versions 4+5 Comparisons/Discussion (Ruth/Ralph/All) 11:30-12:30Lunch 12:30-12:50A New SCEC IT Visualization Tool (Kim Olsen) 12:55-1:15The Reference Earthquakes Digital Library Rupture Model Format (Brad Aagaard) 1:20-2:00General Discussion and Future Plans (All)

3. Overall Goal: Compare the 3D methods currently being used by SCEC scientists to simulate (spontaneous) rupture dynamics Some Specific Objectives: *Understand if our methods are producing the same results when using the same assumptions about friction, crustal structure, fault geometry, etc. *Learn which methods are best suited for which type of problem, for example, dipping faults, complex friction formulations, heterogeneous materials. *Learn which methods might be best suited for coupling to simulations of longer times and larger regions. Sept. 11, 2005 SCEC Workshop

4. This Workshop:  Learn about an in-depth code comparison  Learn about a new finite element code  Compare results of The Problem, Versions 4 and 5  Learn about new IT ways to view our comparisons  Learn how our formats relate to the Ref. EQ database  Plan our next steps Sept. 11, 2005 SCEC Workshop

5. The Problem, Version 4 (July-September 2005) Sept. 11, 2005 SCEC Workshop Higher Stress and Lower Stress Patches on a Vertical Fault in a Fullspace

6. The Problem, Version 5 (July-September 2005) Sept. 11, 2005 SCEC Workshop Higher Stress and Lower Stress Patches on a Vertical Fault in a Halfspace

7. Rupture Dynamics Code Validation Source Physics for The Problem, Version 4 Sept. 11, 2005 SCEC Workshop

8. Rupture Dynamics Code Validation Source Physics for The Problem, Version 5 Sept. 11, 2005 SCEC Workshop

9. Rupture Dynamics Code Validation Station Locations for The Problem, Version 4 Sept. 11, 2005 SCEC Workshop

10. Rupture Dynamics Code Validation Station Locations for The Problem, Version 5 Sept. 11, 2005 SCEC Workshop

11. Rupture Modelers and Codes

12. Sept. 11, 2005 SCEC Workshop * Steve Day, Luis Dalguer, Nadia Lapusta, Yi Liu

13. Sept. 11, 2005 SCEC Workshop * Benchun Duan

14. Sept. 11, 2005 SCEC Workshop Morning Break

15. Sept. 11, 2005 SCEC Workshop 8:30-8:55 Workshop Introduction (Ruth Harris/Ralph Archuleta) 9:00-9:20Comparison of Two Spontaneous Rupture Methods (Steve Day /Luis Dalguer /Nadia Lapusta /Yi Liu) 9:25-9:45EQdyna: An explicit dynamic finite element code for modeling spontaneous rupture on a geometrically complex fault (Benchun Duan) 9:50-10:10 Break 10:10-11:30The Problem Versions 4+5 Comparisons/Discussion (Ruth/Ralph/All) 11:30-12:30Lunch 12:30-12:50A New SCEC IT Visualization Tool (Kim Olsen) 12:55-1:15The Reference Earthquakes Digital Library Rupture Model Format (Brad Aagaard) 1:20-2:00General Discussion and Future Plans (All)

16. Sept. 11, 2005 SCEC Workshop

17. Rupture Modelers and Codes

18. Sept. 11, 2005 SCEC Workshop

22. 300 m vs. 300 m node spacing/element size

23. Sept. 11, 2005 SCEC Workshop

34. 100 m (150m) vs. 100 m node spacing/element size

35. Sept. 11, 2005 SCEC Workshop

46. 300 m vs. 300 m node spacing/element size

47. Sept. 11, 2005 SCEC Workshop

57. 100 m (150m) vs. 100 m node spacing/element size

58. Sept. 11, 2005 SCEC Workshop

69. 300 m vs. 300 m node spacing/element size

70. Sept. 11, 2005 SCEC Workshop

82. 100 m (150m) vs. 100 m node spacing/element size

83. Sept. 11, 2005 SCEC Workshop

96. 300 m vs. 300 m node spacing/element size

97. Sept. 11, 2005 SCEC Workshop

109. 100 m (150m) vs. 100 m node spacing/element size

110. Sept. 11, 2005 SCEC Workshop

123. Lunch

124. Sept. 11, 2005 SCEC Workshop 8:30-8:55 Workshop Introduction (Ruth Harris/Ralph Archuleta) 9:00-9:20Comparison of Two Spontaneous Rupture Methods (Steve Day /Luis Dalguer /Nadia Lapusta /Yi Liu) 9:25-9:45EQdyna: An explicit dynamic finite element code for modeling spontaneous rupture on a geometrically complex fault (Benchun Duan) 9:50-10:10 Break 10:10-11:30The Problem Versions 4+5 Comparisons/Discussion (Ruth/Ralph/All) 11:30-12:30Lunch 12:30-12:50A New SCEC IT Visualization Tool (Kim Olsen) 12:55-1:15The Reference Earthquakes Digital Library Rupture Model Format (Brad Aagaard) 1:20-2:00General Discussion and Future Plans (All)

125. Sept. 11, 2005 SCEC Workshop * Kim Olsen

126. Sept. 11, 2005 SCEC Workshop * Brad Aagaard

127. Sept. 11, 2005 SCEC Workshop Future Plans (Group Discussion)

128. Sept. 11, 2005 SCEC Workshop The End