It turns out concrete and brick have completely different, almost polar opposite, seismic properties. Here in CA, concrete is what you want a foundation to be m

It turns out concrete and brick have completely different, almost polar opposite, seismic properties. Here in CA, concrete is what you want a foundation to be made from. We learned the hard way that brick foundations are prone to crumbling. Brick is certainly strong up to a point, but when it fails, it fails spectacularly.