Simple categories matching imminent:

• hazard,
• danger,
• risk,

Members with property imminent:

• alcoholism,
• tornado,
• poisonous_gas,
• famine,
• smoke,
• fire_situation,
• pestilence,
• prowler,
• person_life,
• active_shooter,
• collapse,
• bomb_threat,
• earthquake,
• scorpion,
• civil_war,
• fire_protection,
• war,
• physical_security,
• gas_leak,
• polio,
• personal_injury,
• threat,
• injury,
• menacing_intruder,
• storm,
• ill_health,
• quicksand,
• exposure,
• hurricane,
• law-enforcement_activity,
• failure,
• drought,
• pole,
• fleeing_criminal,
• heavy_smoke,