Retracing the Path of the 1906 Earthquake

The headstone of Thaddeus Ames, who died in 1876. Damaged and broken headstones give valuable "shaking" clues about earthquakes. This is a small cemetery near Graton, Calif., in Sonoma County, which endured some of the strongest shaking in the 1906 quake.
The headstone of Thaddeus Ames, who died in 1876. Damaged and broken headstones give valuable "shaking" clues about earthquakes. This is a small cemetery near Graton, Calif., in Sonoma County, which endured some of the strongest shaking in the 1906 quake.