Below are 2 second basemaps for each NGA-2 individually.
ASK 2014
BSSA 2014
CB 2014
CY 2016
Basin Effects & Vs30
ASK 2014
BSSA 2014
CB 2014
CY 2014
Vs30 Only
ASK 2014
BSSA 2014
CB 2014
CY 2014
Ellipse Coldspot
The 'coldspot' (lower hazard) which appears around (35.2, -119.5) is due to the velocity model, likely an artifact from CVM-S4's rule-based approach. Below is a plot of Z2.5 around the hotspot: