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

Friday Eruption Update for September 23, 2011: Cleveland, El Hierro, Etna and more

September 23, 2011, 4:54 PM
163423

Quick update for late on Friday - much more to say on Monday. I promise. Really.

Anyway, some brief news:

Alaska: The dome is continuing to grow at Cleveland in Alaska - and we now have some images of the dome growing in the crater (see top left). Right now the concern is what happens if/when the dome grows large enough to spill out the crater. The likely result is the generation of block-and-ash flows as the dome collapses gravitationally. If that happens, there might be more explosive eruptions that accompany the collapse as the pressure is released on the vent. Needless to say, AVO is keeping a close watch on the growth of the dome.

Global Volcanism Program: If you really want to catch up on this week's volcano news, be sure to check out the new USGS/Smithsonian GVP Weekly Volcanic Activity. It does have updates from places like Bezymianny, Sakurajima and Fuego.

Canary Islands: The local authorities at El Hierro have raised the alert status to yellow based on increased seismicity - both in terms of number of earthquakes and intensity, some earthquakes as large as M3. This new level of alert (spanish) means that the government of the island will release regular updates on the activity and make sure that appropriate emergency measures are in place.

Odds and ends: Looks like there has been a lot of activity at Pu`u O`o on Kilaeau this week - check out Hawaii 24/7's update on all the activity that has images and video. Etna also experienced another paroxysm on Monday - the 14th of the year - and INGV has some information on it. Finally, although the alert status at Taal might have been lowered, there is still some low level seismicity at the Philippine caldera as well, but much like Mayon and Bulusan, none of the earthquakes seem to suggest eruptions are imminent.

 

Friday Eruption Update for ...

Newsletter: Share: