The quake was the original jolt in the earth's crust, as a symptom of driving from tektonisme activity, and volcanism, and sometimes it ruins the earth locally. That can be felt at the time of the earthquake is a vibration of the earth where we are at that time. The earth shook sideways and upwards.
Indonesian territory included in the pacific ring of fire, which is also known as the Pacific earthquake belt. In this belt, is lined with volcanic mountains (which is where the energy distribution of the earth), which some mountain in Bali. In addition, inter-continental plates in Indonesia, each year to shift, if the pressure caused by the moving plate can not stand by the edge of the plate, then an earthquake, which can occur at any time in Bali.
From these facts, it makes Bali extremely vulnerable to earthquakes. In fact, Bali is very prone to tsunami. Bali is very common in an earthquake, and small vibrations are not felt.
Yesterday, on August 9, 2012, shook the island of Bali. Vibration caused by the earthquake. The quake, measuring 5.6 hichter scale. Balinese people panicked. A lot of people out of their homes, afraid of falling rubble. Fortunately, no damage caused by the earthquake yesterday. And no fatalities and injuries as well.