[bigbob]

Sonar has been used extensively for over 70 years including sonobuoys - ever heard of one killing a whale?

[bigbob]

With the exception of Navy’s LFA which cannot be used within 14 miles of a coast and when marine mammals are present. Much more powerful than sonar used for mapping.

[CivilWarBrewing]

7 whales washing up within 30 days in an area where they are bombarding the sea floor with mapping devices in preparation for a massive 'wind turbine farm' is not a coincidence.

They COULD be using technologies other than sonar or modified sonar that affects whales enough to destroy their inner compasses.