According to Forbes, Mr Murdoch and his family are worth $17.7 billion (£14.6 billion).
She was reportedly waiting in Britain for Mr Murdoch to join her when she got an email saying their marriage was over.
According to DailyMail.com, she told a friend: “I still love him.”
The friend added: “Jerry is truly devastated by what has happened and insists that it was all a bolt from the blue.
“One day they were making plans to be together for the summer in London, then there was this message instructing her to only contact him via lawyers.
“She is in the house in Henley and is spending time there with (daughter) Lizzie and her grandchild.
“Everyone feels sorry for her about how he has worked out, but nobody is more sorry than Jerry because she honestly loves him still.”
The announcement that the couple were to divorce reportedly came as a shock.
They celebrated Mr Murdoch’s 90th birthday together in New York last year and guests at the celebration said they seemed as close as ever.
Beginning of the rift
Reports suggested that the rift started during the pandemic when Ms Hall sought to minimise the risk of Mr Murdoch contracting Covid.
“She used to joke that she was the Covid police, she wanted to keep him safe,” sources told the Daily Mail.
But this caused resentment among Mr Murdoch’s children, who believed she was trying to distance the media titan from his family.
“She has been hurt by suggestions that she was only in it for the money, or that Rupert didn’t like her smoking or drinking.
“As far as she is concerned, all of that is wide of the mark and she thinks that his children have been briefing against her. She thought that they had a really happy marriage, and she was in love with him.”
The reported rift carries echoes of the hit television series Succession, which chronicles the jostling between the children of a fictitious media magnate, Logan Roy, who is said to be based on Mr Murdoch.