Duration: 02:15

Detailing the devastating 1985 earthquake which killed at least 9,000 people and injured 30,000 in Mexico City.

Duration: 03:22

News footage and graphics illustrating the San Andreas fault and 1989 Santa Cruz eathquake.

Duration: 06:22

The impact of the Bhuj earthquake in India and the role of aid agencies and local organisations in the aftermath.

Duration: 02:44

Earth scientist Dougal Jerram abseils into the crater of the Erta Ale volcano in Ethiopia's Afar region.

Duration: 00:51

Professor Iain Stewart explains that Mount Etna is an extremely active volcano – and is described as the most spectacular free show on earth.

Duration: 04:18

Basalt originates from deep within the Earth's crust and is formed when lava flows over the surface of the Earth and cools.

Duration: 02:06

Scientists explain how the movement of the Earth's plates creates faults in the Earth’s crust where the plates meet.

Duration: 01:47

Scientists create a scaled-down version of the earthquake causing San Andreas fault to see if they can find ways to predict future quakes.

Duration: 02:22

How engineering can improve the chances of survival from an earthquake.

Duration: 02:18

White Island is the most active volcano in New Zealand. The crater continuously erupts chemicals and ash and the crater has a lake in the middle.

Duration: 01:21

The BBC's Justin Webb reports on attempts to divert lava flows on Mount Etna during a 1992 eruption.

Duration: 02:16

Using a vice and a water tank a young scientist explains how the build up of stress between the Earth's tectonic plates is suddenly released, with sometimes devastating consequences.

Duration: 03:49

Supervolcanoes are really difficult to find. They are not your normal volcanic cone but wide, shallow calderas. However, there are some tell-tale signs that they are there.

Duration: 01:08

A summary of how megathrust earthquakes are the result of friction occurring at subduction zones mainly within the so called circle of fire.

Duration: 01:36

The monsoon floods in Pakistan in August 2010 led to concerns over crop failure and food supply.

Duration: 02:24

How can quakes happen on the moon? Find out how the gravitational pull on Earth can have consequences thousands of miles away, not just on our planet.

Duration: 03:16

Geophysicist Bernard Chouet explains how notes from an organ and a volcano about to erupt give off similar resonant signals.

Duration: 04:22

Plate tectonics refers to the movement of the Earth's plates. The landscape of the North Island of New Zealand has been shaped by plate tectonics.

Duration: 03:14

Much of the land on New Zealand's North Island is made up of volcanic rock. Volcanoes have erupted here since 232AD and eruptions are so frequent that plants have little time to become established.

Duration: 02:35

An animation of the Mount Pinatubo eruption of 1991 in the Philippines and its effect on the global climate.

Duration: 04:49

A group of scientists prove that by harnessing the power of technology and computer modelling, the location and timing of earthquakes can be calculated.

Duration: 01:32

The management of the consequences of earthquakes.

Duration: 03:16

The ancient Greek Temple of Apollo at Delphi, a place where an entranced priestess called the Pythia was said to predict the future, has been found by modern geologists to sit above two fault lines that give off noxious gases.

Duration: 03:01

An exploration of the devastating power of pyroclastic flow from a volcano and how they flatten and destroy anything in their path.

Duration: 01:51

Seismologists study how earthquake waves travel through the Earth to map the huge magma chamber below Yellowstone National Park.

Duration: 02:39

Scientists find evidence of a supervolcano's devastating power and link historical events to the hot-spot currently lying underneath Yellowstone National Park.

Duration: 02:39

The Asian tsunami of 2004 was caused by tectonic activity beneath the Indian Ocean. The formation of the tsunami is described.

Duration: 02:04

An investigation into the impact of the 2004 Boxing Day tsunami on the coral reefs of Phuket Island, Thailand, and the implications for the tourist industry.

Duration: 02:00

A news report about the Asian tsunami of 2004, which explains how the secondary effects of the tsunami may be diseases such as diarrhoea and cholera.

Duration: 02:36

Although many of the tourist businesses on Phuket Island, Thailand, were able to re-open soon after the tsunami, tourists stayed away.

Duration: 02:12

In southern Sri Lanka, eyewitnesses describe the arrival and immediate impact of the 2004 tsunami.

Duration: 01:33

Only half of the 1,600-mile fault line in the Indian Ocean ruptured during the Asian tsunami. If the other half were to rupture in the future, the resulting earthquake could lead to another huge tsunami.

Duration: 01:15

An explanation of how the topography of coastlines affects the impact of tsunami waves. The lack of an early warning system partly explains the huge loss of life from the Boxing Day 2004 Asian tsunami disaster.

Duration: 03:42

Scientists scan the ocean bed using solar imaging technology to investigate the cause of one of the largest earthquakes in the world.

Duration: 01:38

Professor Iain Stewart explains how a megathrust earthquake at the bottom of the Indian Ocean triggered the deadly 26 December 2004 tsunami, which killed more than 225,000 people in 11 different countries.

Duration: 02:27

A concise look at some of the ancient myths associated with volcanic eruptions. Detailed focus on Mount Etna and its location within a subduction zone.

Duration: 03:16

Professor Iain Stewart investigates the deadliest earthquake ever recorded resulting in over one million people losing their lives when disaster struck.

Duration: 02:09

Newsnight reports on the powerful 2010 Haiti earthquake that killed thousands of people and levelled houses and other buildings.

Duration: 01:37

Images of the destruction caused by the earthquake in L'Aquila, Italy, in April 2009. No commentary.

Duration: 01:49

Following an earthquake in central Italy in April 2009, reporter David Willey describes the response by the emergency services.

Duration: 02:50

A short case study of the earthquake which struck Kobe, Japan, in 1995. The cause of the earthquake is described and it is explained why it caused so much damage.

Duration: 04:03

Reporting from Eyjafjallajokull volcano in Iceland, Liz Bonnin explains the Earth's inner structure using a plum to show the different layers inside our planet.

Duration: 03:58

Professor Iain Stewart discusses the tsunami waves that would have been caused by the huge asteroid impact that many experts believe killed off the dinosaurs 65 million years ago.

Duration: 02:17

Professor Iain Stewart explains why tsunami waves can be so much more destructive than ordinary storm waves.

Duration: 04:06

Professor Iain Stewart explains why four out of every five tsunamis occur in the Pacific Ocean.

Duration: 03:12

Seismographs have increased our understanding of earthquakes and their origins.

Duration: 02:05

Lahar is an Indonesian word for volcanic mudflow. There are numerous volcanoes in Indonesia and lahars often occur as a result of water mixing with volcanic ash, mud and boulders.

Duration: 03:32

The story of Mount St Helens’ 1980 eruption triggered by an earthquake which awoke the sleeping giant with spectacular consequences

Duration: 01:29

Professor Iain Stewart investigates how tectonic plates are one of the main causes of earthquakes across our world. Also includes an explanation of the Richter Scale.

Duration: 02:06

How Slieve Gullion and the Mourne Mountains may have been formed.

Duration: 03:00

An interesting account of how New Zealand was formed millions of years ago largely due to the movement of tectonic plates and the joining together of pre-existing islands.

Duration: 01:39

A news report detailing the 2004 eruption fears of Mount St Helens, a volcano in Washington, USA.