Study 15.12 Data Products

Hazard Maps

Below are hazard maps from Study 15.12 (150 ppi).

Basic Maps

0.2 sec geometric mean	0.2 sec geometric mean hazard map, all sites	0.2 sec geometric mean hazard map, all sites, marked	0.2 sec 2008 NGA basemap
0.5 sec geometric mean	0.5 sec geometric mean hazard map, all sites	0.5 sec geometric mean hazard map, all sites, marked	0.2 sec 2008 NGA basemap
1 sec geometric mean	1 sec geometric mean hazard map, all sites	1 sec geometric mean hazard map, all sites, marked	0.2 sec 2008 NGA basemap
2 sec geometric mean	2 sec geometric mean hazard map, all sites	2 sec geometric mean hazard map, all sites, marked
3 sec geometric mean	3 sec geometric mean hazard map, all sites	3 sec geometric mean hazard map, all sites, marked
5 sec geometric mean	5 sec geometric mean hazard map, all sites	5 sec geometric mean hazard map, all sites, marked
10 sec geometric mean	10 sec geometric mean hazard map, all sites	10 sec geometric mean hazard map, all sites, marked

Comparison Maps

	2 sec	3 sec	5 sec	10 sec
Difference	Study 15.12 vs Study 15.4, 2 sec geometric mean, difference map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 3 sec geometric mean, difference map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 5 sec geometric mean, difference map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 10 sec geometric mean, difference map. Warm colors are higher Study 15.12.
Ratio	Study 15.12 vs Study 15.4, 2 sec geometric mean, ratio map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 3 sec geometric mean, ratio map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 5 sec geometric mean, ratio map. Warm colors are higher Study 15.12.	Study 15.12 vs Study 15.4, 10 sec geometric mean, ratio map. Warm colors are higher Study 15.12.

Comparison with NGA results

We would expect the stochastic results to show reasonably good agreement with the deterministic results, but they do not. Here are some data products to investigate this. We've chosen 3 sites with large differences (MRVY, s028, LAPD) and 2 we're familiar with (PAS, USC).

NGA-2 curve comparisons

We replotted the curves using NGA-2s (instead of NGA-1) for comparison, and RotD50.

Site	0.5 sec	0.2 sec
USC
PAS
MRVY
s028
LAPD

Changing RVSIG

We reran PAS using rvsig1 = 0.1; comparison curves are below.

Blue: rvsig1=0.1, black: rvisg1=-1.0

Disaggregations

We did disaggregations for CyberShake and the 4 NGA-2s at 3 sigma at 0.5 sec and 0.2 sec, at prob=1e-4. Below are images for each, along with the top 5 contributing sources:

Data Source	0.5 sec value at prob=4e-4	0.5 sec contributors	0.2 sec value at prob=4e-4	0.2 sec contributors
CyberShake	1.08g	47.0% Verdugo (source 283) 23.4% Elysian Park (Upper) (source 158) 12.5% Raymond (source 247) 10.6% Puente Hills (LA) (source 244) 5.9% Puente Hills (source 242)	1.35g	30.8% Verdugo (source 238) 30.7% Elysian Park (Upper) (source 158) 22.1% Puente Hills (LA) (source 244) 11.1% Puente Hills (source 242) 4.9% Raymond (source 247)
ASK2014	1.24g	28.7% Raymond (source 247) 17.0% Elysian Park (Upper) (source 158) 14.3% Verdugo (source 283) 7.2% Hollywood (source 184) 7.0% Puente Hills (LA) (source 244)	2.81g	30.3% Raymond (source 247) 19.4% Elysian Park (Upper) (source 158) 15.1% Verdugo (source 283) 7.6% Puente Hills (LA) (source 244) 7.1% Hollywood (source 184)
BSSA2014	1.51g	30.5% Raymond (source 247) 25.4% Elysian Park (Upper) (source 158) 9.4% Verdugo (source 283) 7.0% Puente Hills (Santa Fe Springs) (source 245) 7.0% Puente Hills (LA) (source 244)	2.48g	32.1% Raymond (source 247) 26.9% Elysian Park (Upper) (source 158) 9.1% Verdugo (source 283) 7.7% Puente Hills (Santa Fe Springs) (source 245) 6.6% Puente Hills (LA) (source 244)
CB2014	1.59g	33.6% Raymond (source 247) 21.0% Elysian Park (Upper) (source 158) 11.2% Verdugo (source 283) 8.0% Puente Hills (LA) (source 244) 7.7% Hollywood (source 184)	2.78g	32.1% Raymond (source 247) 24.1% Elysian Park (Upper) (source 158) 9.9% Verdugo (source 283) 8.8% Puente Hills (LA) (source 244) 7.8% Hollywood (source 184)
CY2014	1.65g	33.5% Raymond (source 247) 20.4% Verdugo (source 283) 12.8% Elysian Park (Upper) (source 158) 8.3% Sierra Madre Connected (source 273) 7.2% Sierra Madre (source 271)	2.66g	31.8% Raymond (source 247) 18.6% Verdugo (source 283) 15.5% Elysian Park (Upper) (source 158) 7.1% Puente Hills (LA) (source 244) 7.0% Sierra Madre Connected (source 273)