Exploratorium: The Museum of art, science and human perceprtion
Faultline: Seismic Science at the Epicenter
Live Eye on the Earth
Great Shakes
1906 Earthquake 1989 Earthquake San Francisco Earthquakes Earthquake Science since 1906
Quake Basics
Plate Tectonics Faults Waves Measurements
Damage Control
Predicting Engineering Retrofitting
Active Zone
Activities Graphics Media Photos Links

Faultine: Seismic Science at the Epicenter is made possible through the generosity of
The Gordon and Betty Moore Foundation and the Jim Clark Endowment for Internet Education.

Live Eye • Great Shakes • Quake Basics • Damage Control • Active Zone

Web site credits

© Exploratorium

In April 1906, an earthquake devastated San Francisco. Seismologists say another major temblor is due soon. What do we know now that we didn't then? A lot, but not enough.