seismic wave

The quick read

What's driving the attention

People are searching about a seismic wave generated by Japan's 2011 major earthquake that traveled through the Earth and caused a slight shift of the Japanese landmass.

The 2011 magnitude-9 earthquake in Japan produced a seismic wave that traveled nearly 2,900 kilometers down to Earth's core before bouncing back to the surface about 13 minutes later. This wave shifted the entire country eastward by approximately six millimeters at the same time. This seismic phenomenon illustrates how large earthquakes can have measurable effects on Earth's structure and geography far beyond the initial shaking.