Instrument which measures and detects seismic waves/vibrations Weight and pen remain still during an earthquake; drum moves with the Earth Earthquake.
Earthquakes Sudden movement of surface when accumulated strain along opposing sides of a fault is suddenly released. Rock stretches and snaps.
Ch 2-Earth as a System Objectives –Describe size and shape of Earth –Describe layers of Earth’s interior –Identify possible source of Earth’s magnetic.
Chapter 9 Lecture The Cosmic Perspective Seventh Edition © 2014 Pearson Education, Inc. Planetary Geology: Earth and the Other Terrestrial Worlds.
