Volcanic fissures can pose several dangers, including the release of volcanic gases such as sulfur dioxide, carbon dioxide, and hydrogen sulfide, which can be harmful to human health. Additionally, lava flows from fissures can destroy property, infrastructure, and vegetation in the surrounding area. The sudden opening of fissures can also lead to the formation of volcanic vents, which can erupt with explosive force, sending ash, rocks, and other volcanic debris into the air, posing a threat to nearby communities.