Yes, the banging has continued.
From the Guardian this morning:
Dr David Gallo, a deep sea explorer, has stressed that it will take hours to rescue the submersible once it has been found – if indeed it turns out that the repetitive banging noises detected are coming from the lost sub.
Speaking to Good Morning Britain on Thursday, he said:
In this case, the noises are repetitive, every half hour I believe.
Three different aircraft heard them in their sensors at the same time and it went on for two days-plus.
It’s still going on apparently. There’s not a lot in the natural world we can think of that would do that every 30-minute cycle.
We have to, at this point, assume that that’s the submarine and move quickly to that spot, locate it and get robots down there to verify that is where the submarine is.
They’ve got to go fully ready as if that was the sub because it takes a while to locate it and get it up to the surface, it takes hours.