Mudra of Calm Abiding

As I witnessed my cozy house shaking and rattling in this my first really measurable earthquake, I got a much deeper appreciation of  just how quickly things can fall apart despite apparent solidity.  It felt clear to my very core that to be able to weather whatever comes what we need to know as unshakable  is our own deepest self.  What happens when the emblems of faith, such as the National Cathedral, are shaken by the strength and awesome power of nature?