A spokesperson for the Los Angeles Police Department confirmed this to PEOPLE. She was released with a $50,000 bond.
According to the Los Angeles Sheriff's Department's booking sheet, Johanna, 40, was booked into Van Nuys jail at 9:30 p.m.
PEOPLE did not receive a response from a representative of the Altman family.
"We have never felt more connected and in love since this tragedy. Matt said, "We ask everyone to respect and protect our privacy."
Johanna posted an Instagram message after Tuesday's news about her arrest, in which she said that her and her husband "only get stronger."