A massive earthquake rocked Mexico this morning. The tremor lasted minutes and measured 7.3. Its center was off the coast near Guatemala. The jolt arrived at 11:10am local time. Intense shaking spread fast. Tsunami notifications went up at once. Mexico and Guatemala faced alerts for high waves. Shoreline dwellers moved quickly to elevated ground. Aftershocks persisted, some strong. The biggest aftershock reached 5.0. No big damage or injuries were reported yet. Homes and streets stayed quiet in Chiapas and nearby areas. Tsunami alerts remained for hours. They were later removed as seas remained calm.