Egill Hauksson, Crustal structure and seismicity distribution adjacent
the Pacific and North American plate boundary in southern California,
Geophys. Res., 105, 13,875-13,905, 2000.
The initial view is approximately to the north. The most prominent
are the higher upper mantle velocity beneath theContinental Borderland.
The red (low-velocity) regions are the surficial (1km depth) expressions
the southern San Joaquin Valley, the Los Angeles and Ventura Basins,
the Imperial Valley. The figure is plotted with a vertical exaggeration
of about 5.