Rhythmic loop - dangerous and action cue
A distant, long military alarm signal or siren.
Panic Crowd, Emergency many voices good for disaster or accident
Chaos Panicked Crowd, many voices sense of confusion
A symphonic orchestra performing a dramatic music effect.
A factory or industrial warning alert or alarm.
An emergency or restricted access alarm.
Heavy breathing male, stressed, out of breath.
Gasp Crowd Concern and shock with Murmur and some phrases, I cant believe it
Wormhole Ambience, feeling of falling or being sucked in through deep space or out of control