A new kind of earthquake has been detected in western Canada, one that shakes the ground slower and longer than typical ...

The energy from an earthquake travels in waves. The fastest wave is called a P wave, ... Next comes the S wave, which moves up and down like a wave. Both types of waves shake the ground.

Despite advances in science, predicting earthquakes remains nearly impossible due to their deep origins, unique fault ...

These mysterious waves, known as PKP precursors, arrive just before a type of seismic wave known as PKP waves, which travel through the Earth during an earthquake.

The Richter Scale. The first widely-used method, the Richter scale, was developed by Charles F. Richter in 1934. It used a formula based on the amplitude of the largest wave recorded on a specific ...

These instruments were specially designed to pick up a rare type of seismic wave known as PKP waves, waves from cyclones that pass through Earth’s core.

People close to the epicenter of an earthquake typically feel the more intense P waves, even though the S waves come right after them, according to the U.S. Geological Survey.

During the 7.9 magnitude Denali earthquake in Alaska in 2002, low frequency waves traveled so far that they caused water in swimming pools and ponds to splash as far away as Texas and Louisiana ...

These seismic events move Earth's surface, displacing the water above and generating waves that rapidly travel in all directions across the ocean or body of water. Not all earthquakes create tsunamis.