Category Nuances for building_collapse:

• technical,
• dangerous,
• extreme,
• critical,
• traumatic,
• threatening,
• possible,
• catastrophic,
• tragic,
• immediate,
• structural,
• cataclysmic,
• urban,
• disastrous,
• major,

Simple Categories for building_collapse:

• failure,
• danger,
• occurrence,
• incident,
• event,
• situation,