This natural color image of Christchurch, New Zealand, is overlain with a measure of the ground shaking in the area during the February 2011 earthquake.
Scientists from around the world banded together to analyze landslides in the wake of a potent temblor. They found fewer scars on the landscape than past events would have predicted.
Acquired October 19, 2011, this natural-color image shows landslides in the northern Indian state of Sikkim. The landslides likely resulted from an earthquake to the northwest.