An earthquake is the shaking of the ground cause by seismic waves. Almost all earthquakes occur when pent up stress in rocks along large, active faults (like the SAF) is suddenly released as the rock breaks.n earthquake is the shaking of the ground cause by seismic waves. Almost all earthquakes occur when pent up stress in rocks along large, active faults (like the SAF) is suddenly released as the rock breaks.
Signs and Symptoms. According to the Autism Society, autism symptoms typically become clearly evident during early childhood, between 24 months and 6 years of age. Symptoms include a marked delay in language and cognitive development. There may be signs of obsessive and/or antisocial behavior.
The following are among those which may be affected by autism: 1  Communication: language develops slowly or not at all; words may be used without attaching the usual meaning to them; gestures may be used instead of words; may have short attention spans.