The central segment is roughly 10 km wide with a spreading rate of 2.4 cm per year (half-rate). The southern segment has sections as wide as 18 km, and has the slowest spreading rate of 1.2 cm per year (half-rate).
The central segment is approximately 10 kilometers wide, expanding at a rate of 2.4 centimeters per year (half-rate). The southern segment has sections as extensive as 18 kilometers in width and expands at the slowest pace of 1.2 centimeters per year (half-rate).