Correct Option: B

The giant 2004 Sumatra earthquake ruptured the greatest fault length of any recorded earthquake, spanning a distance of 1500 km, or longer than the state of California. Rather than tearing the land apart all at once, the rupture started beneath the epicenter marked in the figure below and progressed northward along the fault at about 2 km/sec. This giant quake of 2004 was followed just four months later by the magnitude 8.7 quake of March 28, 2005.