Comparison of Earthquake maps using GPS Coordinates

But first note the physical location and distance between the two islands, both located in Solano County:
(click on the graphics to see larger versions)

 

Real Ryer Island Seismic Map Long Point (Ryer) Island Seismic map

 

 

 
"
More recent soils tests and map...notice the name for the island in Suisun Bay no longer is
used on the maps.  This may indicate the
various agencies became aware in 2008 of
the conflicts in the island name and possible
incorrect use of Ryer Island-Suisun Bay data for reports related to Ryer Island-Steamboat Slough


Soils tests taken and reported for "Ryer Island" aka "Long Point Island" used for many reports and mapping of various Delta Vision-related studies.