Presentation is loading. Please wait.

Presentation is loading. Please wait.

The SCEC Broadband Platform: From a Research Platform to an Industry Tool 2013 SCEC Annual Meeting Katie Wooddell.

Similar presentations


Presentation on theme: "The SCEC Broadband Platform: From a Research Platform to an Industry Tool 2013 SCEC Annual Meeting Katie Wooddell."— Presentation transcript:

1 The SCEC Broadband Platform: From a Research Platform to an Industry Tool 2013 SCEC Annual Meeting Katie Wooddell

2 USER SPECIFIED INPUTS Strengths: – Only 2 input files required per scenario – Minimal number of user inputs required – Scenarios easy to define Interface Issues: – Redundant information included in.src file – Fault input and output specified in different coordinates – Need figures to provide a visual check on the scenario Map of the fault relative to the stations Option to preview and select desired rupture models

3 .SRC Inputs M W = 2/3log(M O ) – 6.07 -OR- M W = log(A) + 4 M O = 10^(3/2M W + 9.1050) Where: M O (Nm)

4 .SRC Inputs (36.37, -121.55) STRIKE = 338 + Hypo Along Strike - Hypo Along Strike (Hypo AS, Hypo DD ) (22.28, 9.87)

5 Hypo AS = Flength/2 + Hypo AS = 75.73 Hypo DD = 9.87 (36.37, -121.55) STRIKE = 338 + Hypo Along Strike - Hypo Along Strike Hypo AS = 22.28 Hypo DD = 9.87

6 FIGURES

7 JOINING MULTI-SEGMENT AND COMPLEX RUPTURES Interface Issue: – Platform designed for single, planar fault ruptures – Various ways to link faults, each implying something different about the physics of how linked faults rupture

8 M-A SCALING FOR FORWARD SIMULATIONS Interface Issue: – Specification of M W and Area from Seismic Source Characterization (SSC) (potentially violates scaling assumptions / restrictions used by modelers)

9 San Gregorio San Simeon Hosgri L = 198 km M W = 7.47 L = 107 km M W = 7.21 L = 107 km M W = 7.21 Seismogenic Crust = 15 km Dip = 90 (all segments) W = 15 Seismic Source Characterization Parameters L = 135 km M W = 7.47 L = 73 km M W = 7.21 L = 73 km M W = 7.21 (FROM GEOLOGICAL INVESTIGATION)(FROM SCALING MODELS) Dip = 90 (all segments) W = 22 “THIN CASE”“THICK CASE”

10 SIMULATION RESULTS: THIN VS. THICK CASE THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km FIXED HYPOCENTER 32 REALIZATIONS

11 SIMULATION RESULTS: THIN VS. THICK CASE FIXED HYPOCENTER 32 REALIZATIONS THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km

12 SIMULATION RESULTS: THIN VS. THICK CASE FIXED HYPOCENTER 32 REALIZATIONS THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km

13 FIXED HYPOCENTER 32 REALIZATIONS THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km

14 SIMULATION RESULTS: THIN VS. THICK CASE THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km RANDOM HYPOCENTER 32 REALIZATIONS

15 SIMULATION RESULTS: THIN VS. THICK CASE THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km RANDOM HYPOCENTER 32 REALIZATIONS

16 SIMULATION RESULTS: THIN VS. THICK CASE THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km RANDOM HYPOCENTER 32 REALIZATIONS

17 RANDOM HYPOCENTER 32 REALIZATIONS THIN M W = 7.21 W = 15 km L = 107 km THICK M W = 7.21 W = 22 km L = 73 km

18 GREEN’S FUNCTIONS Interface Issues: – Add Green’s Function capability into the platform or handle them outside? – Adequacy of the current Green’s functions. Do we need full F-K solutions?

19 PREVIEW OF RESULTS NUMBER OF CASES – ~860,000 scenarios submitted in early August – Approx. 75% complete PRELIMINARY SCENARIO RESULTS – M5.5 Reverse fault with (dip = 45, ZTOR = 2.5) – Comparison between GP, SDSU, and ExSIM

20 RANDOM HYPOCENTER 32 REALIZATIONS ZTOR = 2.5 km REVERSE SLIP

21 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION ON FOOTWALL SIDE: R X = -7.5 km, R JB = 7.5 km, R RUP = 7.9 km

22 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION ON FOOTWALL SIDE: R X = -7.5 km, R JB = 7.5 km, R RUP = 7.9 km

23 N-S RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION ON FOOTWALL SIDE: R X = -7.5 km R JB = 7.5 km R RUP = 7.9 km

24 N-S RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION ON FOOTWALL SIDE: R X = -7.5 km R JB = 7.5 km R RUP = 7.9 km

25 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION OVER FAULT PLANE: R X = 2.5 km, R JB = 0 km, R RUP = 3.5 km

26 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION OVER FAULT PLANE: R X = 2.5 km, R JB = 0 km, R RUP = 3.5 km

27 N-S RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION OVER FAULT PLANE: R X = -2.5 km R JB = 0 km R RUP = 3.5 km

28 VERT RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION OVER FAULT PLANE: R X = -7.5 km R JB = 7.5 km R RUP = 7.9 km

29 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION ON HANGING-WALL SIDE: R X = 10.5 km, R JB = 6.5 km, R RUP = 9.2 km

30 WAVEFORM COMPARISON: GP, SDSU, & ExSIM STATION ON HANGING-WALL SIDE: R X = 10.5 km, R JB = 6.5 km, R RUP = 9.2 km

31 N-S RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION ON HANGING-WALL SIDE: R X = -2.5 km R JB = 0 km R RUP = 3.5 km

32 N-S RESPONSE SPECTRA: GP, SDSU, & ExSIM STATION ON HANGING-WALL SIDE: R X = -2.5 km R JB = 0 km R RUP = 3.5 km

33 STATION ON FOOTWALL SIDE: R X = -20.0 km, R JB = 20.0 km, R RUP = 20.2 km

34 STATION ON FOOTWALL SIDE: R X = -15.0 km, R JB = 15.0 km, R RUP = 15.2 km

35 STATION ON FOOTWALL SIDE: R X = -10.5 km, R JB = 10.5 km, R RUP = 10.8 km

36 STATION ON FOOTWALL SIDE: R X = -7.5 km, R JB = 7.5 km, R RUP = 7.9 km

37 STATION ON FOOTWALL SIDE: R X = -4.5 km, R JB = 4.5 km, R RUP = 5.1 km

38 STATION ON FOOTWALL SIDE: R X = -2.5 km, R JB = 2.5 km, R RUP = 3.5 km

39 STATION ON FOOTWALL SIDE: R X = -1.0 km, R JB = 1.0 km, R RUP = 2.7 km

40 STATION OVER FAULT PLANE: R X = 1.0 km, R JB = 0.0 km, R RUP = 2.7 km

41 STATION OVER FAULT PLANE: R X = 2.5 km, R JB = 0.0 km, R RUP = 3.5 km

42 STATION ON HANGING-WALL SIDE: R X = 4.5 km, R JB = 0.5 km, R RUP = 4.9 km

43 STATION ON HANGING-WALL SIDE: R X = 7.5 km, R JB = 3.5 km, R RUP = 7.1 km

44 STATION ON HANGING-WALL SIDE: R X = 10.5 km, R JB = 6.5 km, R RUP = 9.2 km

45 STATION ON HANGING-WALL SIDE: R X = 15.0 km, R JB = 11.0 km, R RUP = 12.8 km

46 STATION ON HANGING-WALL SIDE: R X = 20.0 km, R JB = 16.0 km, R RUP = 17.3 km

47 CONCLUSIONS Expanding the platform to handle multi- segments faults is very important if we want to use the BBP for forward modeling. 3D Green’s function capabilities important for site specific analysis More work needs to be done to understand the differences between the models.


Download ppt "The SCEC Broadband Platform: From a Research Platform to an Industry Tool 2013 SCEC Annual Meeting Katie Wooddell."

Similar presentations


Ads by Google