The rose does not bloom without thorns. True, but would that the thorns did not outlive the rose.

Only fools, liars, and charlatans predict earthquakes

The rose does not bloom without thorns. True, but would that the thorns did not outlive the rose.

My main point today is that usually one gets what one expects, but very rarely in the way one expected it.

As seismologists gained more experience from earthquake records, it became obvious that the problem could not be reduced to a single peak acceleration. In fact, a full frequency of vibrations occurs.

If one introduces the concept of energy of an earthquake then that is a theoretically derived quantity.

I was lucky because logarithmic plots are a device of the devil.