Why does Agadir look nothing like other Moroccan cities?

On 29 February 1960, a magnitude 5.8 earthquake destroyed the city in 15 seconds — between 12,000 and 15,000 dead. Agadir was rebuilt from scratch two kilometres south, with wide boulevards, modern architecture, and seismic safety standards. No ancient medina, no winding derbs. The only remnant is the hilltop Kasbah inscription: "God, Country, King."