Each climate allows for the growth of many crops, which is part of the reason the food in each region is considered to be unique and well-developed. Local cuisine in some other parts of Mexico is not rich in tradition, simply because the people there were nomadic and less likely to settle. Environments that were easy to live in allowed people to develop recipes, rather than simply eating for survival.
The earthquakes and volcanic eruptions in Puebla pose challenges for the people who live there. For example, two years ago, in September of 2017, an earthquake shook Mexico City and Puebla. A handful of buildings are still under reconstruction. Earthquakes are taken very seriously here. In schools in Puebla, the students don't have fire drills or lockdowns or tornado drills. They have earthquake drills. Volcanic eruptions are also a constant threat, as Popocatépetl is considered to be one of the most dangerous volcanoes in the world. After a small eruption last month, officials are giving residents advice on what to do in case of a bigger eruption. Their main advice is to stay calm, be ready to evacuate and not to believe everything they see on social media.
Mérida has not had to deal with a majorly destructive hurricane since 2005, but meterologists there are always wary during hurricane season. When hurricanes do come, they disrupt daily life. Electricity can be stopped. Potable water can be contaminated. At the very least, the danger keeps people in their homes and away from businesses, which can adversely affect the economy.