...the sound nicknamed Bloop is the most likely to come from some sort of animal, because its signature is a rapid variation in frequency similar to that of sounds known to be made by marine beasts. There's one crucial difference, however: in 1997 Bloop was detected by sensors up to 4800 kilometres apart. That means it must be far louder than any whale noise, or any other animal noise for that matter. Is it even remotely possible that some creature bigger than any whale is lurking in the ocean depths? Or, perhaps more likely, something that is much more efficient at making sound?
It originated from a point about 1,500 miles west of the southern Chilean coast. It was powerful enough to be picked up on sensors located up to 3,000 miles away, making it one of the most powerful noises ever recorded underwater. The sound lasted for just over a minute and has not been detected since.
Originally posted by Daemonicon
Might a lame question, but here you go anyway.
If, as the NOAA states, it was simply ice cracking, and our cap ice is very quickly melting and no doubtedly cracking, why is this the one and only example we have of this?
I am not saying they are wrong, but with the rapid melting and breaking of our glaciers, and the worldwide equipment I imagine exists, would we not have recorded another similar sound?
The broad spectrum sounds recorded in the summer of 1997 are consistent with icequakes generated by large icebergs as they crack and fracture. NOAA hydrophones deployed in the Scotia Sea detected numerous icequakes with spectrograms very similar to “Bloop”.