Antarctic underwater volcanoes discovery


This video is about 12 underwater volcanoes discovered near the South Sandwich Islands.

From Wildlife Extra:

Underwater Antarctic volcanoes discovered in the Southern Ocean

South Sandwich Islands provide rich habitat

July 2011. Scientists from British Antarctic Survey (BAS) have discovered previously unknown volcanoes in the ocean waters around the remote South Sandwich Islands. Using ship-borne sea-floor mapping technology during research cruises onboard the RRS James Clark Ross, the scientists found 12 volcanoes beneath the sea surface – some up to 3km high. They found 5km diameter craters left by collapsing volcanoes and 7 active volcanoes visible above the sea as a chain of islands.

Rich habitat

The research is important also for understanding what happens when volcanoes erupt or collapse underwater and their potential for creating serious hazards such as tsunamis. Also this sub-sea landscape, with its waters warmed by volcanic activity creates a rich habitat for many species of wildlife and adds valuable new insight about life on earth.

Researchers led by David Sandwell at Scripps Institution of Oceanography at UC San Diego have used radar measurements from the satellites CryoSat-2 and Jason-1 to produce a new gravity map of Earth’s ocean floor, one twice as accurate as the previous one made nearly 20 years ago. Previously undiscovered features found include an underwater mountain range in the Gulf of Mexico, a major fault line in the South Atlantic Ocean, many smaller hill-like features on the ocean floor and thousands of previously unknown underwater mountains and volcanoes: here.

2 thoughts on “Antarctic underwater volcanoes discovery

  1. Pingback: New island in Pacific by volcanic eruption | Dear Kitty. Some blog

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 )

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

This site uses Akismet to reduce spam. Learn how your comment data is processed.