It is important to realize that the greatest effect and harm of a major disaster is often the result, not of the shaking, but rather in the social unrest that results from a government's inability to cope with the disaster. Given Myanmar's problematic government, that may be the case here. If you want examples, consider the Managua earthquake that led to the overthrow of Somoza or the 1976 Tangshan earthquake which contributed to the cultural turmoil accompanying the death of Mao that led to the end of the Cultural Revolution.