A strong apparent aftershock from a powerful earthquake late last month shook Mexico Monday, officials said. According to officials, no immediate damage or injuries were reported from the earthquake, which had an initial magnitude of 6.3. Mexico City Mayor Marcelo Ebrard said on Twitter that no major damage was reported by helicopter flights over the city, and public transit and services were functioning normally. Interior Secretary Alejandro Poire also said on Twitter that there had been no reports of damage.