2001, salon: https://www.salon.com/2001/07/30/almaden1/
2013, the atlantic: https://www.theatlantic.com/technology/archive/2013/07/not-e...
2015, gizmodo: https://gizmodo.com/the-secret-history-of-silicon-valley-and...
2017, kqed: https://www.kqed.org/futureofyou/388730
I've lived here off and on since 1999, but that Atlantic article was the first one to really get my attention.
My neighbor Aaron Greenspan (also known for fighting his classmate Mark Zuckerberg on trademark issues) asked local authorities to do more to inform residents. It did not go anywhere. He eventually moved out, and so did I.
Here's one of his blog posts from back in 2013: http://www.aarongreenspan.com/writing/20130404/in-search-of-...
The first few events revealed the danger when people sitting on the lawn portion actually set the lawn afire with their lighters, due to methane seeping through the soil.
Cool trails up there, lots of history, just sucks that its the reason we can't fish in anything downstream of that in the south bay.