Seafloor - page 2

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Axial Seamount: Undersea volcano eruption off the coast of Oregon, US

An undersea volcano has erupted off the coast of Oregon, spewing forth a layer of lava more than 12 feet (4 meters) thick in some places, and opening up deep vents that belch forth a cloudy stew of hot water and microbes from deep inside the Earth.Scientists uncovered e

August 10, 2011

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Field of hydrothermal vents discovered along the Mid-Atlantic Ridge

The Irish-led VENTuRE scientific expedition aboard the national research vessel RV Celtic Explorer has discovered a previously uncharted field of hydrothermal vents along the Mid-Atlantic Ridge – the first to be explored north of the Azores. The mission, led by

August 09, 2011

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One of the world's roughest stretches of water

Runoff from heavy rains, combined with wave action along the coast, increased the turbidity of New Zealand’s waters when this image was acquired on April 29, 2011, according to a NASA statement. The Moderate Resolution Imaging Spectroradiometer (MODIS) on

July 21, 2011

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Deep seafloor could help scientists predict earthquakes

Seismic monitoring and centuries of experience have given humankind a pretty good idea of what areas are prone to the devastation of earthquakes and tsunamis. But to truly prepare for huge temblors and accompanying tsunamis like the one that ravaged Japan in March, we

June 25, 2011

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Dead Sea disappearing day by day

The Dead Sea has been drying up at a dramatic rate in recent decades as a result mostly of human demands for water. But instead of letting the historic body of water continue to disappear, some scientists are getting increasingly serious about trying to save it.In the m

May 28, 2011

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Two small islands have sunk into the sea between India and Sri Lanka

Two small islands in South Asia's first marine biosphere reserve have sunk into the sea primarily as a result of coral reef mining. The islets were in a group in the Gulf of Mannar, between India and Sri Lanka.The Indo-Pacific region is considered to contain some of

May 16, 2011

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Deep-sea volcanoes could also explode

Between 75 and 80 % of all volcanic activity on Earth takes place at deep-sea, mid-ocean ridges. Most of these volcanoes produce effusive lava flows rather than explosive eruptions, both because the levels of magmatic gas (which fuel the explosions and are made up of a

March 29, 2011

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Fault-finding coral reefs can predict the site of coming earthquakes

In the wake of the devastating loss of life in Japan, the urgent question is where the next big earthquake will hit. To answer it, geologist Prof. Zvi Ben-Avraham and his doctoral student Gal Hartman of Tel Aviv University's Department of Physics and Planetary Scien

March 23, 2011

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Japanese tsunami and Pacific ocean floor

As tsunami waves travel across ocean basins they are only inches high, but extend down to the ocean floor (unlike traditional waves which are only surface features). As the tsunami waves approaches the coast, the shallowing ocean floor pushes the water mass upwards.

March 14, 2011

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Arctic's spring phytoplankton blooms arrive earlier

When summer comes to the Arctic, the tiny plants that feed the ocean's food chain form green blooms in the water. In some Arctic waters, the peak of this bloom has been arriving earlier every year since 1997, a study has found. These areas, where peak bloom

March 08, 2011

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Billions of dead fish washed up at King Harbor, US

Millions of dead fish have washed up in King Harbor near Redondo Beach, and officials are now trying to figure out why. The dead fish, mostly sardines along with anchovies and mackerel, are apparently floating up to the surface from the ocean floor. KTLA's Sky5

March 07, 2011

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More sea islands disappear in China

A five-year government survey finds that China faces a worsening problem over the disappearance of sea islands caused by disorderly and crude exploitation. Reclamation, sand dredging, and bombing islands are some of the destructive human activities that have

March 02, 2011

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68 Percent of New England and Mid-Atlantic Beaches Eroding

Beaches on the East Coast have been steadily eroding over the past 150 years, according to a new U.S. Geological Survey (USGS) report.  During that time, scientists found erosion at 68 percent of the beaches in New England and the Mid-Atlantic, according to

February 28, 2011

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Exotic species spreading through world's seas

Exotic species have invaded more than 80 percent of the oceans and coasts on Earth, causing problems that can ultimately cost billions of dollars to handle — and these species may spread even further as climate changes worldwide, scientists find.Invasive species a

February 27, 2011

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Mass fish deaths ner Ascencion Island in deep South Atlantic

The Extinction Protocol blog today covers the story about mass fish death in deep South Atlantic originaly posted in The Islander. Over the last few weeks we have been recording high numbers of dead fish washing up onto the beaches around the Island. The same thing

February 27, 2011

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The rise in sea level of the Mediterranean is accelerating

"The sea level in the Mediterranean has risen by between 1 and 1.5 millimetres each year since 1943, but this does not seem set to continue, because it now seems that the speed at which it rises is accelerating", Manuel Vargas Yáñez, main author of the book Cambio

February 27, 2011

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67 Dead Dolphins Wash Ashore Gulf Coast

This week, 24 baby dolphins washed ashore in Alabama and Mississippi along with at least 6 adults. So far, scientists have tallied a total of 67 dead dolphins along the coast. The number of dolphin carcasses appears to be growing hourly.The majority of dolphin

February 26, 2011