The explosions were so powerful that Swedish and Danish authorities said seismic devices in the Baltic Sea region recorded the magnitude of those explosions around M2.3 and M2.1. 

EU authorities have guesstimated an explosive load of "several hundred kilos" to destroy Nord Stream pipelines, which triggered four leaks at four locations — two in Denmark's waters and two in Sweden's waters. 

Almost a month later, neither EU leaders nor Western intelligence agencies can concretely say who blew up NS1 and NS2 in the backyard of NATO. New footage has surfaced of the blown-up undersea pipeline that is more than 80 meters below the surface of the Baltic Sea. 

Swedish newspaper Expressen has secured the first public images of the heavily damaged pipelines. They say one section of the pipeline is missing 50 meters of concrete-reinforced steel pipe. 

Norwegian company Blueye Robotics operated the underwater drone and captured these images:

Here's a video of the underwater drone exploring the badly damaged pipeline.