Ground Shaking in the 1989 Loma Prieta Earthquake: A view from 25 years later

• What factors controlled the variability in ground shaking in the earthquake?
• Will the ground shaking in future earthquakes display similar patterns?
• Hear about the advances made in recording ground shaking over the past 25 years.
• Learn how USGS uses this information to quickly assess the impact of earthquakes.

Speaker: Brad Aagaard, USGS