On Nov. 18, 1929, a magnitude 7.4 Mw earthquake occurred 155 miles south of Newfoundland along the southern edge of the Grand Banks, Canada.

The earthquake had a magnitude of six on the Richter scale.

Five tremors in excess of magnitude 5.0 on the Richter scale have shaken Japan just this week, but scientists are warning that the largest expected aftershock has yet to hit.

We also had problems in the past, but this time it's of a different order of magnitude.

A 7.3 magnitude earthquake on the Richter scale caused a shock in Antarctica.

A tsunami warning has been issued in Chile after a magnitude 8.0 earthquake struck 49 miles off the coast.

An earthquake of magnitude 5 shook Tokyo.

I've never seen a pearl of such magnitude!

The Pacific Tsunami Warning Center has issued a tsunami warning after an 8.3 magnitude earthquake struck off the coast of Chile.

A vector quantity has two characteristics, a magnitude and a direction.