Cost of False Alarms False alarms continue to rank among the most serious threats to life and property, according to a survey completed by one of the fire insurance companies. From a total of 210,606 alarms reported in 64 cities, 26,614 were known to be either false or needless. Some cities which helped in this survey reported that false alarms reached totals as high as twenty-five or thirty per cent. Averaging the cost of alarms in this group of 64 totals, the result was $111.07 per alarm, or a total of nearly $3,000,000 for this number of cities. In all, a total of 1,744 persons were killed or injured, and in one city, a false alarm caused a damage of $225,569.