Japan was part of the Asian mainland until ... So it is, and always has been, with plate tectonics. Even though its key ideas crystallized in 1967, it didn’t arrive fully formed in a blinding ...

The Earth's plates jostle about in fits and starts ... volcanoes that eventually build up into island arcs like Japan. At divergent boundaries in the oceans, magma from deep in the Earth's mantle ...

Japan sits on or near the boundary of four tectonic plates: the Pacific, North American, Eurasian and Filipino plates.* These massive slabs of earth’s crust are endlessly creeping, slipping ...

It was thought that the shallow part of the plate boundary was completely "uncoupled," being able to slowly slip relative to the neighboring plate. However, after the 2011 Great East Japan ...

These plates mash and grind together and trigger deadly earthquakes, like the 8.9-magnitude quake that struck on Friday (March 11). [Photos: Japan Earthquake and Tsunami in Pictures] The tectonic ...

At the boundary between these two ... tectonic system stretching from southern Japan to New Zealand. This vast network of ...

A reappraisal of decades-old data suggests that strange circular formations on Venus could be volcanic “rings of fire” ...

The Japan Meteorological Agency announced that Thursday’s earthquake had a magnitude of 7.1 and was caused by a shift in the boundary between the two plates. It was smaller than the massive ...

On 11 March 2011 a huge underwater earthquake happened off of the Japanese coast ... geography relating to geological timescales and plate tectonics.