Measuring 8.0 on the Richter scale, it killed more than 1,300 people.

Its size was measured as 7.8 on the Richter scale of ground motion.

One earthquake in 1966 measured 7.5 on the Richter scale.

That quake killed more than 700 people and measured 6.7 on the Richter scale.

The earthquake was measured between 7.5 and 7.9 on the Richter scale.

That measured 7.5 on the Richter scale but killed only two people.

Moderate earthquakes measure less than 6.0 or so on the Richter scale.

The earthquake, which measured 6.0 on the Richter scale, is the worst to hit this area in more than 100 years.

At first, the earthquake was measured as a 9.0 on the Richter scale.

The two largest produced waves measuring 3.0 and 3.5 on the Richter scale.