Krakatoa: The Last Days, Clip 6 – Pyroclastic Surge (HD)

<!–[CDATA[

Full Screen Version: http://www.youtube.com From the BBC docu-drama, “Krakatoa: The Last Days.” The movie is also known as “Krakatoa: Volcano of Destruction” and aired on Discovery Channel. The movie brings to life the journals and recollections of four witnesses who survived the cataclysmic eruption of Krakatoa in August of 1883. The Beijerinck (Beyerinck) family, along with 3000 Ketimbang survivors, had settled further inland. They survived a tsunami and the destructive ear-shattering force of Krakatoa’s explosions. They thought the worst had past, but one more is about to strike. A pyroclastic surge is a fluid mass of turbulent gas and rock fragments which is ejected during volcanic eruptions and are similar to pyroclastic flows except that it has a higher proportion of gas to rock particles. Pyroclastic flows can generate pyroclastic surges. Because a pyroclastic surge is “lighter” than a pyroclastic flow, it can travel much faster at speeds of 350 mph carrying massive destructive kinetic energy and can actually climb higher ground. Pyroclastic surges can be “hot” containing gas and steam at temperatures above 100 degrees Celsius (212 degrees Fahrenheit) to as much as 800 degrees Celsius(1472 degrees Fahrenheit). They can also be “cold” with temperatures below 100 degrees Celsius. Aside the temperature factor, both hot and cold pyroclastic surges can still be lethal, depending on the type of gases they carry. Hot pyroclastic surges can cross significant bodies of water on a ]]>

Advertisements

25 thoughts on “Krakatoa: The Last Days, Clip 6 – Pyroclastic Surge (HD)

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s