This video is the introduction to the Volcanoes and Earthquakes series. The series begins by explaining the devastating earthquake that hit San Francisco in 1906, leaving over 350,000 people homeless and burning over 28,000 buildings to...

This video summarizes the topics covered in the Volcanoes and Earthquakes series. The speaker discusses how earthquakes are generated, the different types of seismic waves, and how seismographs are used to measure and locate earthquakes....

This video is a quiz over the topics covered in the Volcanoes and Earthquakes series. The presenter gives incomplete sentences and the viewer is asked to fill in the blank with the correct word. The topics covered in the quiz include...

The video explains the San Andreas Fault, which is a geological feature in North America. It shows a line that represents the fault and explains that it is a break between different areas of rock where movement has occurred, resulting in...

The video explains the occurrence of volcanoes in relation to the movement of the Earth's plates. The video also highlights examples of volcanoes located at plate boundaries, such as the Ring of Fire, as well as those located in the...

The video discusses the 1964 Alaska earthquake, one of the strongest earthquakes ever recorded in North America. The video explains the concept of the earthquake epicenter and focus, and notes that earthquakes can occur under the ocean....

The video discusses different types of volcanoes and how they are formed based on different types of volcanic eruptions. It covers four main types of volcanoes: cinder cone, shield, dome, and composite (or stratovolcano). The video also...

This video provides an explanation of what an earthquake is and how it occurs. The video also notes that while some earthquakes may not be felt, others can be powerful enough to cause significant property damage. Volcanoes and...

The video explains how seismographs are used to detect and record seismic waves produced by earthquakes. It describes how the seismogram created by a seismograph can help scientists determine the time, epicenter, and focal depth of an...

Volcanoes and earthquakes are only part of a bigger picture. Tectonic forces also push continents around and cause mountains to be uplifted. The crust recycles itself. The lighter rocks of the continents float on the heavier rocks of the...

This video provides an overview of volcanoes and explains what lava is, how it is formed, and how it reaches the Earth's surface. The video also describes the destructive power of lava and the features of a volcano, including vents and...

Alaska has the most volcanoes out of all the US states, but researchers think they don't have enough. Here's the weird science behind looking for Alaska's volcanoes, and what we've learned about volcanism along the way.

This video explores the eruption of a volcano in a small fishing village in Iceland in 1973. The video showcases the lava flow that engulfed the town and how the residents used fire hoses to cool and solidify the lava, creating a lava...

Footage of erupting volcanoes and earthquakes combined with animations help students to learn the causes and effects of earthquakes and volcanoes on our planets crust. Using animated maps the video helps viewers to understand how...

This video discusses the different factors that can affect the nature of volcanic eruptions. It provides examples of explosive and calmer eruptions, such as the 1991 eruption of Mount Pinatubo in the Philippines and the eruption of Mount...

Did you know that nature contains clues that can uncover ancient earthquakes that occurred decades, or even centuries ago? Join us for a fascinating look into the world of ancient earthquakes, and see how yesterday's quakes compare to...

Today we're going to tell the story of a quiet revolution in the 1960s that shifted our entire understanding of how the Earth works. We currently believe that the Earth's broken outer shell rises from the mantle and folds back in - kind...

In this video Paul Andersen explains how natural disasters (like earthquakes, tsunamis, volcanoes and flooding) have affected and will continue to affect humans on the planet. Many of the natural hazards (like volcanoes and storms) can...

That asteroid the headlines have been warning people about isn't likely to actually hit us, and scientists might have solved a mystery that could save lives: the relationship between tides and earthquakes.

The video explains the three main types of seismic waves that are produced when rocks move and crumble during an earthquake: primary waves, secondary waves, and surface waves. Volcanoes and Earthquakes part 10/13

In this video we will learn how Alfred Wegener proposed a theory in 1912 that the great continents of the Earth had drifted over geological time and were once all joined together in a giant land mass we now call Pangaea. His idea was...

Alaska is home to 54 active volcanoes. Scientists, called volcanologists, watch and study these volcanoes to try and predict when they are going to erupt and so they can give warnings to the nearby communities. In 2008, Mount Redoubt,...

Hundreds were killed and more injured when earthquakes hit Japan on Thursday and Saturday morning and Ecuador on Saturday night. Despite occurring only 32 hours apart, experts believe the two are not related. The only commonality is that...

Dr. Forrester explains the interaction of the earth’s layers with the tectonic plates and the eruptions of volcanoes.