Why now? Because the Pacific Tectonic plate is trying to turn clockwise on its bed of magma. That’s how the Hawaiian Islands were created
Very credible. We live about 60 miles east of the San Andreas and south of the Salton Sea. By El Centro, there are several geothermal plants along that part of the fault line extending to Mexico. The magma is very close to the surface. Surprising to those who don't live around here.