May 23, 2017
Earthquakes
Animations for Earthquake terms and and Concepts – USGS
Faultline – Seismic Science at the Epicenter
Introduction to earthquake and tsunamis
Learning Links & Earthquake Activities – USGS
What Is An Earthquake? – 4-minute YouTube video
Make Your Own Seismogram! – Northern California Earthquake Data Center
Volcanoes
Introduction to volcanoes