Empress Theatre (California) repainted and the "Empress Theatre" sign was painted into the pediment. Its window panels were uncovered and refurbished, seats from Fox Theatres were salvaged and installed, gypsum decoration was re-gilded, and period-appropriate carpeting was laid. The Empress thrived throughout the decade. 1989 On Tuesday October 17, the Loma Prieta earthquake, measuring 6.9 on the moment magnitude scale, shook the San Francisco Bay Area; the Empress Theatre was not spared. To repair damage from the quake and make the building seismically safe for use was a task so monumental that it caused the theatre to sit vacant and derelict for nearly
1989 Loma Prieta earthquake about from the epicenter. From October 5, they reported that a substantial increase in noise was measured in the frequency range 0.01–10 Hz. The measurement instrument was a single-axis search-coil magnetometer that was being used for low frequency research. Precursor increases of noise apparently started a few days before the earthquake, with noise in the range 0.01–0.5 Hz rising to exceptionally high levels about three hours before the earthquake. Though this pattern gave scientists new ideas for research into potential precursors to earthquakes, and the Fraser-Smith et al. report remains one of the most frequently cited examples of a specific