The two earthquakes that have struck recently, the first in New Zealand and the second, yesterday, in Japan, are a stark reminder of the energy of creation that exists on our planet. Our lives are too short to fully comprehend the great forces that are at work over the lifespan of the universe. We may ask "Why now?", but when we remember that records may only have been begun to be collected over the past 1-200 years, that timescale is so insignificant when we look at the greater picture. Also, natural disasters are brought more immediately and significantly to our attention these days through the availability of instant global news and personal communication networks.
The fact that the timescales that nature works to and the one we live by day to day are so widely different is probably the reason why so much devastation occurs. Humanity just can't fully realise the greater picture of the energy within the earth at work because it manifests itself outside time of our existence and modern lifestyle expectations. We can easily forget the fragility of life. We have dominance over buildings, technology, computers, energy creation, and food production etc, but yet often fail to see this bigger picture of nature at work