Physical process which can occur during an earthquake. Clay-free soil deposits (primarily sands and silts)temporarily lose strength and behave as viscuous fluids, resulting in ground failure.
- Earthquake science explained--a series of ten short articles for students, teachers, and families [More info]
- Collects a series of short articles on earthquake science and related topics for students, teachers, and parents originally published as weekly features in The San Francisco Chronicle.
- Liquefaction maps and data for the San Francisco Bay area [More info]
- Explains liquefaction, where it occurs, how it affects people, and what can be done about it. Includes maps and data.
- Progress toward a safer future since the 1989 Loma Prieta earthquake [More info]
- Summarizes what we have learned since this serious earthquake and how we have improved our preparedness for events such as this.