Loma Prieta Periodic Comet Machholz 1 96P/Machholz on May 12, 1986. The first official West Coast Messier marathon was conducted from this site in March 1979. The epicenter of the 1989 Loma Prieta earthquake was near the mountain. The mountain was the longtime site for the transmitter tower of San Jose television station KNTV (from 1955 to 2005). It moved its transmitter northwest to San Bruno Mountain in September 2005, after it became the Bay Area's NBC affiliate. Loma Prieta is the tallest peak in the Santa Cruz Mountains and it is common to see snow on the mountain during the winter.
Major League Baseball on ABC 3 of the 1989 World Series (initially scheduled for October 17) was delayed by ten days due to the Loma Prieta earthquake. The earthquake struck at approximately 5:04 p.m. Pacific Time. At the moment the quake struck, ABC's color commentator Tim McCarver was narrating taped highlights of the previous Series game. Viewers saw the video signal begin to break up, heard McCarver repeat a sentence as the shaking distracted him, and heard McCarver's colleague Al Michaels exclaim, "I'll tell you what, we're having an earth—." At that moment, the feed from Candlestick Park was lost. The network put up a