Here are the alarms I found (tone not generated sound effect): 0, 0 sawtooth: black hole 0, 1 sawtooth: air raid 0, 2 sawtooth: nuke 0, 3 sawtooth: supermassive black hole 0, 4 sawtooth: hypermassive black hole 0, 1 square: tornado 0, 2 square: tsunami