Scientists in Japan have discovered a way to 'hear' storms on the other side of the planet and use them to study the Earth's crust.
We find them at the beach, in every sound and light show, the miracle of wi-fi and now in the fabric of space-time itself. But what exactly is a wave?
Retrofitting old or cheap houses with earthquake protection is often expensive and laborious. What if we could save whole streets at a time?
Japan has the most powerful seismic network in the world. And this network is throwing out some warning signs.
For seismologists, there's much to be learned after a major earthquake, as aftershocks help them map out the fault with high precision. More data now can prepare a region for its next big one.
Earthquake analysis could help us understand the deep structure of volcanoes.