Seismologists suspect explosions damaged undersea pipelines that carry Russian gas
The events on Monday in the Baltic Sea resembled blasts from depth charges or mines, according to a Swedish researcher. They caused major leaks from the inactive Nord Stream pipelines.
Two undersea leaks that began in the Russian-owned Nord Stream gas pipelines on Monday were likely caused by powerful underwater explosions, according to Swedish and Danish seismographic data.
It is "very clear from the seismic record that these are blasts," Björn Lund, director of the Swedish National Seismic Network at Uppsala University
