Here you will find resources to help educators and their students construct a simple seismometer; record motion in two dimensions and also within a fixed time frame; understand how seismometers record earthquake waves; recognize P waves, S waves, and surface waves on seismograms; read a graph to determine the distance to the earthquake focus; locate the epicenter from time-distance graphs.

Here you will find resources to help educators and their students to generate and describe two types of waves; determine the relative speeds of compressional and shear waves; simulate some of the motions associated with earthquakes; infer the origin of earthquakes and the mechanism of transfer of seismic wave energy.

Here you will find resources to help educators and their students to calculate the density of liquids and compare their densities with their position in a column of liquid; observe the effects of temperature on the density of a material; examine the natural heat flow from within the Earth; understand the results of uneven heating within the Earth; and understand the causes of the movement of lithospheric plates.

Here you will find resources to help educators and their students classify and label the types of movement at plate boundaries, using a world map that shows relative plate motion; identify the distribution of plates by means of the world map of relative plate motions; describe the present plate-tectonic setting of your community and infer possible past plate-tectonic activity based on your knowledge.

Here you will find resources to help educators and their students determine the direction and rate of the movement of positions within the plate on which your community is located, using data from GPS and a computer model; predict the position of your community in the near future, and "retrodict" its position in the recent past, by extrapolating from data already collected; recognize that the rate and direction of plate motion is not necessarily constant; describe several lines of evidence for plate motion.

Here you will find storylines for EarthComm: Earth's Dynamic Geosphere Chapter 3: Earthquakes and Your Community.

Here you will find storylines for EarthComm: Earth's Dynamic Geosphere Chapter 2: Plate Tectonics in Your Community.

Here you will find storylines for EarthComm: Earth's Dynamic Geosphere.

Here you will find corrections to the 2001 version of the Earth's Dynamic Geosphere EarthComm textbook.