Boxing Day Tsunami | BBC Select

Watch on BBC Select: bit.ly/3Vouuyn
First came an earthquake deep below the Indian Ocean. Minutes later, in the early hours of Boxing Day 2004, a 100-foot wall of water ripped through Indonesia. Then the tsunami reached Thailand, leaving unimaginable devastation in its wake. Using eye-witness accounts, BBC Select presents this gripping documentary investigating this horrific natural disaster. Could the catastrophe have been averted?
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[@AnnaAnna-uc2ff]

Thank you.

[@zahirmurji]

Tsunamis are large ocean waves caused by the displacement of a significant volume of water, usually as a result of an earthquake or volcanic eruption. Here's a step-by-step explanation of how tsunamis occur: *Causes of Tsunamis* 1. *Earthquakes*: When an earthquake occurs beneath the ocean, it can displace the water above it, creating a tsunami wave. This is the most common cause of tsunamis. 2. *Volcanic eruptions*: Volcanic eruptions can also displace water in the ocean, generating a tsunami. 3. *Landslides*: Landslides, either above or below the water, can also displace water and create a tsunami. *The Tsunami Process* 1. *Displacement*: When an earthquake, volcanic eruption, or landslide occurs, it displaces the water above it. 2. *Wave formation*: The displaced water forms a series of ocean waves that radiate outward from the source of the disturbance. 3. *Wave propagation*: These waves, or tsunamis, travel through the ocean at speeds of up to 500 miles per hour (800 kilometers per hour). 4. *Wave amplification*: As the tsunami waves approach the coast, they begin to slow down and increase in height, due to the decreasing water depth. 5. *Coastal impact*: The tsunami waves then crash onto the coast, causing widespread destruction and loss of life. *Characteristics of Tsunami Waves* 1. *Long wavelength*: Tsunami waves have a very long wavelength, often exceeding 100 miles (160 kilometers). 2. *High speed*: Tsunami waves travel at high speeds, allowing them to cover vast distances in a short amount of time. 3. *Low frequency*: Tsunami waves have a low frequency, which means they have a long period between wave crests. Understanding how tsunamis occur is crucial for developing effective early warning systems and mitigation strategies to minimize the impact of these devastating events.

[@leekoss7083]

We had a friend who helped coordinate donations.😢