Haiti 's quake released one times more energy than Chile 's , says Stark . Of course it 's complicated . Earthquake 's magnitude is related to movement of plates on earth 's surface , Colin Stark says . Quake damage partly due to level of poverty , quality of building techniques , he says .
Haiti 's quake released one times more energy than Chile 's , says Stark . Earthquake 's magnitude is related to movement of plates on earth 's surface , Colin Stark says . Quake damage partly due to level of poverty , quality of building techniques , he says .