What is Big Think?  

We are Big Idea Hunters…

We live in a time of information abundance, which far too many of us see as information overload. With the sum total of human knowledge, past and present, at our fingertips, we’re faced with a crisis of attention: which ideas should we engage with, and why? Big Think is an evolving roadmap to the best thinking on the planet — the ideas that can help you think flexibly and act decisively in a multivariate world.

A word about Big Ideas and Themes — The architecture of Big Think

Big ideas are lenses for envisioning the future. Every article and video on bigthink.com and on our learning platforms is based on an emerging “big idea” that is significant, widely relevant, and actionable. We’re sifting the noise for the questions and insights that have the power to change all of our lives, for decades to come. For example, reverse-engineering is a big idea in that the concept is increasingly useful across multiple disciplines, from education to nanotechnology.

Themes are the seven broad umbrellas under which we organize the hundreds of big ideas that populate Big Think. They include New World Order, Earth and Beyond, 21st Century Living, Going Mental, Extreme Biology, Power and Influence, and Inventing the Future.

Big Think Features:

12,000+ Expert Videos

1

Browse videos featuring experts across a wide range of disciplines, from personal health to business leadership to neuroscience.

Watch videos

World Renowned Bloggers

2

Big Think’s contributors offer expert analysis of the big ideas behind the news.

Go to blogs

Big Think Edge

3

Big Think’s Edge learning platform for career mentorship and professional development provides engaging and actionable courses delivered by the people who are shaping our future.

Find out more
Close

Active volcanism in the Kuril Islands

April 8, 2009, 9:01 AM


Image courtesy of KVERT, taken by L. Kotenko on Marhc 18, 2009.

To me, one volcanic arc about which I wish I knew more is the Kuril-Kamchatka arc. I'm well aware of how active it is, with giants composite volcanoes like Bezymianny, Koryak, Klyuchevskoi and many, many others. This arc of volcanoes, although in a sparsely populated part of the world, is important to monitor due to its proximity of air travel lanes to Asia. So, any time I find out a volcano in this area - usually one that I was previously unfamiliar - erupted, I am excited.

Today's example: Ebeko. Never heard of it. Yet, it is erupting here in 2009, and rather impressively at that. KVERT (Kamchatkan Volcanic Eruption Response Team), a cooperative with AVO that monitors the Russian volcanoes of the Kamchatka Peninsula and the Kuril Islands, releases some amazing pictures of this volcano in action during January through March of 2009. Most of the activiity pictured are either steam explosions with minor ash or the crater steaming away, this marks the first activity at Ebeko since 2005. The explosions produced ash fall (0.1-0.2 cm) in Severo-Kurilsk on March 13, 29 and 31.

Ebeko itself is on Paramushir Island in the Kuriles. The island is home to at least 5 active volcanoes (Ebeko, Chikurachki, Tatarinov, Karpinsky and Fuss Peak) and at least 23 known volcanic systems of varying age, so it is no stranger to volcanic activity. Few people live on the island, but it is a strategically important island south of Kamchatka between Russia and Japan. Ebeko has been intermittently active over the last 100 years and has active hot springs and fumaroles in one of its craters. It is also a "somma volcano", which simply means that it is a volcano that built up inside the caldera of previous volcanism (other examples are Vesuvius and Teide, amongst many others). As expected from any volcano with such vigorous hydrothermal activity, many of the eruptions at Ebeko are phreatic - explosions due to the interaction of water and magma - producing lots of steam and some minor ash. However, in 1989, the volcano produced lahars and tephra during the VEI 2 eruption.

The current activity at Ebeko will be monitored using mostly satellite monitoring and occasional visual observations from Paramushir Island, along with any seismic data that can be collected from the volcano-seismic network in that part of Russia.

 

Active volcanism in the Kur...

Newsletter: Share: