A huge earthquake shook Mexico this morning. The tremor lasted several minutes and measured 7.3. Its center was off the coast near Guatemala. The jolt arrived at 11:10am local time. Severe shaking spread fast. Tsunami notifications went up at once. Mexico and Guatemala faced alerts for large waves. Coastal residents moved quickly to higher ground. Aftershocks kept coming, some strong. The biggest aftershock reached 5.0. No significant damage or injuries reported so far. Homes and streets stayed quiet in Chiapas and nearby areas. Tsunami alerts were active for hours. They were later lowered as seas stayed calm.