638c2855_cale_and_the_Richter_magnitude__tremor
[degree] VIII [description] Drivers have trouble steering. Houses that are not bolted down might shift on their foundations. Tall structures such as towers and chimneys might twist and fall. Well-built buildings suffer slight damage. Poorly built structures suffer severe damage. Tree branches break. Hillsides might crack if the ground is wet. Water levels in wells might change. [tremor] 
violent
Mercalli scale and the Richter magnitude
tremor