Blacks who have been touched by the disaster are not only donating money but gathering supplies, taking in friends and relatives, even heading south to help shoulder the burden of their people.
"You'd have to go back to slavery, or the burning of black towns, to find a comparable event that has affected black people this way," said Darnell M. Hunt, a sociologist and head of the African American studies department at UCLA.
If the rescue effort had not been so mishandled, and if those who suffered so needlessly had not been so black and so poor, perhaps Hurricane Katrina would have been just another destructive storm, alongside the likes of Charley and Andrew and Hugo. (There is no Keisha or Kwame.)
But Katrina's searing images — linking nature's wrath and the nation's wrongs — have fanned the smoldering resentments of the civil rights, Reaganomics and hip-hop eras all at once.
"Something about this is making people remember their own personal injustices," said author damali ayo, whose book "How to Rent a Negro" takes a satirical look at race relations.
"You don't look at Rodney King and say, 'I remember when I got beat up.' But people remember being neglected, unimportant, overlooked, thought of as 'less than.' That's a very common experience for black people."
Some 71 percent of blacks say the disaster shows that racial inequality remains a major problem in America, according to a survey by the Pew Research Center for the People & the Press, conducted Sept. 6-7 among 1,000 Americans; 56 percent of whites feel this was not a particularly important lesson.
And while 66 percent of blacks think the government's response would have been faster if most of the victims had been white, 77 percent of whites disagreed.
On Thursday, first lady Laura Bush said it was "disgusting" that critics blamed her husband's policies for the racial disparities between hurricane survivors. In an interview with American Urban Radio Networks, she said the homes of the poor were more vulnerable to the storm and "that's what we want to address."
Many events have transfixed African-Americans: the Rodney King and O.J. Simpson cases, the killings of icons from Martin Luther King Jr. to Tupac Shakur, the crack cocaine epidemic, the Clarence Thomas confirmation hearings.
But Katrina is different. It has opened people's eyes — "The face, the cover has been pulled off the invisible poor," said Rev. Ronald E. Braxton of Metropolitan African Methodist Episcopal Church in Washington, D.C. — and it has created a rare opportunity for people of all backgrounds to make a tangible, immediate difference.
Braxton spoke as his congregation loaded a 50-foot tractor-trailer with antacid, diapers, food, water and other supplies destined for AME churches in Jackson, Miss. and Baton Rouge, La.
Before Independence Air volunteered to fly the supplies to the hurricane zone, Braxton turned away volunteers willing to drive 22 hours to Baton Rouge. In addition, he said, his church raised $20,000 last Sunday alone to send to the national AME relief effort.