Northridge 1994 6.7 Earthquake Mug 

• Rare collectible United States Geological Survey Seismogram green coffee/tea cup
• Title text on front reads "Northridge Earthquake January, 17 1994 Ms 6.7"
• Tactile seismogram graphic wraps around mug to other side and reads "Seismogram recorded at the U.S. Geological Survey, Menlo Park, CA