GVP Weekly Volcanic Activity Report for August 3-9, 2011: Cleveland's dome, Indonesian volcanoes and a busy Etna

I'm back in Ohio and will be for the foreseeable future ... less than 3 weeks until classes start again here at Denison. Lots of things to get organized for me over the next few weeks.

Today, I thought I'd just quickly post on the latest Global Volcanism Program Weekly Volcanic Activity Report - thanks, as always, to the Smithsonian Institute, the USGS and Sally Kuhn Sennert.

Alaska: There has been some information in the news about the activity at the remote Alaskan volcano, Cleveland, and all of it seems to suggest a new dome at the summit. The USGS did have a Gulfstream III overfly the volcano to image the new dome via radar, but the results of this won't be released for at least a few days. So far, the dome growth has not been accompanied by any significant explosive activity - a bit of a surprise at Cleveland.

Indonesia: The island nation is seeing its fair share of activity lately, and now Karangetang has come back into the fray. The volcano has experienced some small explosions over the last week that has caused villagers to flee. We also still have some activity at Lokon-Empung and Krakatau.

Italy: Last night, Dr. Boris Behncke mentioned that we might be heading towards a 10th eruptive event of the year at Etna - be sure to watch the webcams closely today. It definitely has been a busy summer at Etna and Stromboli. Check out some of Dr. Behncke's images from a recent trip to Stromboli as well.

Top left: A thermal image of Etna as seen on August 12, 2011. The new Southeast Crater is the red area on the right side of the image.

3D printing might save your life one day. It's transforming medicine and health care.

What can 3D printing do for medicine? The "sky is the limit," says Northwell Health researcher Dr. Todd Goldstein.

Northwell Health
Sponsored by Northwell Health
  • Medical professionals are currently using 3D printers to create prosthetics and patient-specific organ models that doctors can use to prepare for surgery.
  • Eventually, scientists hope to print patient-specific organs that can be transplanted safely into the human body.
  • Northwell Health, New York State's largest health care provider, is pioneering 3D printing in medicine in three key ways.
Keep reading Show less

Greenland loses 4 trillion pounds of ice in one day

Normally, the landscape in this photo would be a white ice sheet.

Surprising Science
  • Climate scientists say that Greenland is experiencing ice losses that are unusually early and heavy.
  • Two main weather factors are fueling the losses: a high-pressure system and the resulting low cloud cover.
  • Greenland is a major contributor to sea-level rise.
Keep reading Show less

Has a black hole made of sound confirmed Hawking radiation?

One of Stephen Hawking's predictions seems to have been borne out in a man-made "black hole".

Image source: NASA/JPL-Caltech
Surprising Science
  • Stephen Hawking predicted virtual particles splitting in two from the gravitational pull of black holes.
  • Black holes, he also said, would eventually evaporate due to the absorption of negatively charged virtual particles.
  • A scientist has built a black hole analogue based on sound instead of light.
Keep reading Show less

Permafrost is melting 70 years earlier than expected in Arctic Canada

It's a "canary in the coalmine," said one climate scientist.

MARK RALSTON/Contributor
Surprising Science
  • A team of researchers discovered that permafrost in Northern Canada is melting at unusually fast rates.
  • This could causes dangerous and costly erosion, and it's likely speeding up climate change because thawing permafrost releases heat-trapping gasses into the atmosphere.
  • This week, Canada's House of Commons declared a national climate emergency.
Keep reading Show less