So I got a message from BART's update service that there was a 20-minute delay due to an "obstruction on the tracks." In BART doublespeak, any time there's a delay of more than 15 minutes, and any time the reason is something unusual like that, you know Something Is Up. I went to the SF Chronicle's website: nothing. BART's website: same message as the e-mail. Google news: nothing. Twitter search: Score! KRON4 (an independent news TV station) had a link to a one-line story about a minor collision, the official BART Twitter account acknowledged a collision (guess where KRON4 got it), and a couple people were twittering from the derailed train, including a grainy photo of the evacuation process.
Only on the radio, actually.
Right after this I went out to the car to check the oil and go do some errands; I turned on 740 AM KCBS, and guess who had full coverage? KCBS. They had all the available details at that point, and stayed on it as I drove around. KGO did later, once their rush-hour news coverage started, but yeah. If you don't know your local all-news AM station's info, it's worth looking up.
Tip of the hat to "old media."
(Hope C. isn't delayed too much. And only minor injuries are reported, in case you were wondering.)