Original weakaura: https://wago.io/NJWivejk7
I checked how often quake activated and it was either 20, 40 or 60 seconds. Made this WA so it's easily trackable.
It'll go off at 19, 39, 59.
My personal preference for quaking. The old one does not import anymore since it's too old, so I uploaded my version that has kept up with the Weakaura changes and updates.