The puzzle pieces beneath our feet
When mountains blow their tops
Shaking things up down below
Coexisting with a restless planet
artiteacher Giant ocean waves called tsunamis pose a deadly threat to coastal communities.
artiteacher Slide tectonic plates together to discover how earthquakes and volcanoes shape our living planet.
artiteacher Tsunamis
They race at jet-plane speed through the trenches of the deep, While the quiet surface rolls like the water is asleep.
artiteacher Energy travels from the underground focus to the surface epicenter, compressing the ground and shaking it side-to-side.
Which type of seismic wave travels the fastest and is the first to arrive at a seismograph station?
What is the term for the exact point underground where an earthquake rupture actually begins?
artiteacher Comparing arrival times at three different stations locates the exact epicenter of an earthquake.
What scientific instrument is used to detect and record the vibrations produced by seismic waves?
How many seismograph stations are needed at a minimum to locate the epicenter of an earthquake using triangulation?
Silent warnings: Some animals, like dogs and birds, can detect fast-traveling P-waves seconds before the destructive S-waves arrive, making them appear to predict earthquakes.
Which scale do modern seismologists prefer to use to measure the total energy released by very large earthquakes?