The figure represents between 0.22 and 0.27 percent of the total content viewed by Facebook's more than two billion users from January through March.
"In other words, of every 10,000 content views, an estimate of 22 to 27 contained graphic violence," the report said.
Responses to rule violations include removing content, adding warnings to content that may be disturbing to some users while not violating Facebook standards; and notifying law enforcement in case of a "specific, imminent and credible threat to human life".
Improved IT also helped Facebook take action against 1.9 million posts containing terrorist propaganda, a 73 percent increase. Nearly all were dealt with before any alert was raised, the company said.
It attributed the increase to the enhanced use of photo detection technology.
Hate speech is harder to police using automated methods, however, as racist or homophobic hate speech is often quoted on posts by their targets or activists.
Sarcasm needs human touch
"It may take a human to understand and accurately interpret nuances like... self-referential comments or sarcasm," the report said, noting that Facebook aims to "protect and respect both expression and personal safety".
Facebook took action against 2.5 million pieces of hate speech content during the period, a 56 increase over October-December. But only 38 percent had been detected through Facebook's efforts - the rest flagged up by users.
The posts that keep the Facebook reviewers the busiest are those showing adult nudity or sexual activity - quite apart from child pornography, which is not covered by the report.