What should be done if a gas line breaks?

When a gas line breaks, the most critical response is to evacuate the area. This is essential because a gas leak poses immediate dangers, including the risk of explosion and asphyxiation. Evacuating the area ensures the safety of individuals, as it removes them from immediate harm's way until the situation is stabilized.

After ensuring that the area is clear of people, the next steps would typically involve notifying the appropriate authorities or the gas company to address the leak safely and effectively. While sealing the line might seem plausible, this is not the responsibility of on-site personnel and could worsen the situation if not handled properly. Continuing work in an area where a gas leak has occurred is highly dangerous and would be irresponsible, as it could escalate the risk of an incident.

Therefore, evacuating the area is the immediate priority to safeguard life and property.