标签：#geology

The crust expands at mid-ocean rifts. But how?

New satellite imagery reveals how much terrain has shifted in the wake of the twin quakes.

The maps and images show the extent of destruction and give rescue operations a tool to find any remaining survivors.

Factors like the short interval between the two powerful quakes and different types of soil led to some structures collapsing while others stayed standing.

Rock weathering may release or draw down carbon dioxide—it depends on the rock.

The country was hit hard by a pair of quakes that happened in quick succession and were likely driven by stress being transferred from one part of the fault that runs through the country to another.

The country's interim leader declared a state of emergency on Wednesday following shocks measuring 7.5 magnitude after two quakes hit in less than a minute.