New Zealand Earthquakes Weakened Earth's Crust

A series of deadly earthquakes that shook New Zealand in 2010 and 2011 may have weakened a portion of Earth's crust.

November 25, 2013
11:00 AM EST
A map of the earthquakes in the Canterbury earthquake sequence around Christchurch, New Zealand. Stars note the largest events, with intervening aftershocks in the same color (red is the Sep. 3, 2010, magnitude-7.1 earthquake; black is the Feb. 22, 2011, | Reyners, et al., Nature Geoscience