1) Hardcore Band from Syracuse, New York.
These are photos from concerts where Earthquake played, so they may be of other bands that played the concert as well.
Heart / Sammy Hagar / Earthquake / Greg Kihn Dec 31, 1977 Oakland, California, United States Uploaded by Yvette Kay
Mahogany Rush / Earthquake / Greg Kihn Aug 27, 1977 San Francisco, California, United States Uploaded by Zimtrim
Jeff Beck / Earthquake Sep 4, 1976 Concord, California, United States Uploaded by Gene Cali
Journey / Sons of Champlin / Earthquake Aug 7, 1976 Concord, California, United States Uploaded by Zimtrim
Journey / Earthquake / Sammy Hagar Dec 31, 1975 San Francisco, California, United States Uploaded by Zimtrim
Edgar Winter / Johnny Winter / Lynyrd Skynyrd / Climax Blues Band / Earthquake Sep 20, 1975 Oakland, California, United States Uploaded by Zimtrim
Rory Gallagher / Rush / Earthquake Nov 22, 1974 San Diego, California, United States Uploaded by Zimtrim
Lou Reed / Arthur Lee and Love / Earthquake Nov 22, 1974 San Francisco, California, United States Uploaded by Zimtrim
Jefferson Starship / Earthquake / Link Wray / The Rubinoos Sep 24, 1974 San Francisco, California, United States Uploaded by Zimtrim
Edgar Winter / Earthquake / Grin Feb 3, 1973 San Francisco, California, United States Uploaded by Gene Cali