Highly developed areas built on loose ground material can suffer severe damage from even a relatively mild earthquake.
In one spot was a kink like the autograph of a mild earthquake.
The region is prone to natural disasters with annual floods and frequent mild earthquakes.
During the 1998 games, the mountain suffered a mild earthquake that registered 5.0 on the Richter magnitude scale, but the skiing events continued.
Just then the ground trembled, shaking beneath his feet as from a mild earthquake.
The floor was shaking under their feet, reminding them of the tremor of a mild earthquake.
Tsunamis often arise after relatively mild earthquakes, making their prediction a major challenge.
In many regions, art objects stand vulnerable to damage from even mild earthquakes.
In the 1930s Glenwood was the site of several mild earthquakes.
"Even a mild earthquake now could bring these buildings down."