Fig. 4: GPS residuals velocity.
From: Mantle flow distribution beneath the California margin
Residuals are plotted at the same scale as in Fig. 2. The largest spatially coherent residuals occur off the Cascadia trench, around Parkfield, in the Transverse Range, and around the recent 1999 Hector Mine and 2010 El Mayor-Cucapah earthquakes, shown in more detail in Fig. 5. The red triangles correspond to quaternary volcanos.
