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Steve backshall exteme. Comments. Extra layer of tectonic plates discovered within Earth's mantle, scientists say. Scientists say they have found a possible layer of tectonic plates within the Earth’s mantle which could explain a mysterious series of earthquakes in the Pacific.

Extra layer of tectonic plates discovered within Earth's mantle, scientists say

For more than half a century scientists have known that continents drift over the surface of our planet, and that the ocean floor tears apart in their wake, with magma from the mantle filling the gap. At the other end of the process, where tectonic plates converge, oceanic plates plunge into the deeper mantle in a process called subduction. On Tuesday, Jonny Wu of the University of Houston presented preliminary evidence of possible plate tectonics within the mantle to a joint conference of the Japan Geoscience Union and the American Geophysical Union in Tokyo.

Twitter Card. Sentinel satellites to monitor every volcano. Image copyright Getty Images A UK-led team of scientists is rolling out a project to monitor every land volcano on Earth from space.

Sentinel satellites to monitor every volcano

Two satellites will routinely map the planet's surface, looking for signs that might hint at a future eruption. They will watch for changes in the shape of the ground below them, enabling scientists to issue an early alert if a volcano appears restless. Some 1,500 volcanoes worldwide are thought to be potentially active, but only a few dozen are heavily monitored. The world's five deadliest volcanoes ... and why they're so dangerous. An eruption of Mount Etna recently caught out some BBC journalists who were filming there.

The world's five deadliest volcanoes ... and why they're so dangerous

The footage was extraordinary and highlighted the hazards volcanoes pose to humans and society. Since 1600, 278,880 people have been killed by volcanic activity, with many of these deaths attributed to secondary hazards associated with the main eruption. Starvation killed 92,000 following the 1815 Tambora eruption in Indonesia, for example, and a volcanic tsunami killed 36,000 following the 1883 Krakatoa eruption. Since the 1980s, deaths related to volcanic eruptions have been rather limited, but this is not entirely a result of increased preparedness or investment in hazard management – it is significantly a matter of chance. Research shows that volcanic activity has shown no let up since the turn of the 21st century – it just hasn’t been around population centres.

Bang Goes the Theory s04ep01 Japanese earthquake special WnA. Dataset. Description This animation shows every recorded earthquake in sequence as they occurred from January 1, 2001, through December 31, 2015, at a rate of 30 days per second.

dataset

The earthquake hypocenters first appear as flashes then remain as colored circles before shrinking with time so as not to obscure subsequent earthquakes. The size of the circle represents the earthquake magnitude while the color represents its depth within the earth. At the end of the animation it will first show all quakes in this 15-year period. Next, it will show only those earthquakes greater than magnitude 6.5, the smallest earthquake size known to make a tsunami. This time period includes some remarkable events. Earth's Volcanoes - Documentary. The Really Big One. When the 2011 earthquake and tsunami struck Tohoku, Japan, Chris Goldfinger was two hundred miles away, in the city of Kashiwa, at an international meeting on seismology.

The Really Big One

San Andreas fault ‘ready to go,’ expert warns of major earthquake. A massive earthquake looms for Southern California, according to one expert.

San Andreas fault ‘ready to go,’ expert warns of major earthquake

Thomas Jordan, director of the Southern California Earthquake Center, shared his ominous warning during this week's National Earthquake Conference in Long Beach. Kevin Schafer/Getty Images/Minden Pictures RM The San Andreas fault is due for a massive earthquake, one expert said. “The springs on the San Andreas system have been wound very, very tight. And the southern San Andreas fault, in particular, looks like it's locked, loaded and ready to go,” Jordan said during his keynote speech, according to the Los Angeles Times.

The last major earthquake along the fault line in the area occurred in 1857. Harry and Friends explain fumaroles. Earth - The Cracks Ripping Earth Apart. Standing here at Thingvellir, I may be looking at something quite new: the achingly slow birth of a new continent.

Earth - The Cracks Ripping Earth Apart

Sigmundsson tells me that a new "micro plate" is forming beneath our feet. This "special Icelandic plate" is continually expanding as new crust forms on either side of it. ShelterBox Provides Shelter, Warmth And... - The Huffington Post. Cyclone Winston: Village built by Australian man for Fiji's poor survives unscathed. Updated Cheap, sturdy houses designed by an Australian man have survived Fiji's devastating cyclone with barely a scratch and provide a potential blueprint for reconstruction efforts.

Cyclone Winston: Village built by Australian man for Fiji's poor survives unscathed

Key points. Lesson Ideas for Teachers. Pre & Post Visit Material...

Lesson Ideas for Teachers

We have worked very closely with practicing teachers to develop a range of activities suitable for you to use in the classroom, the school hall or even the playground. All activities aim to help you extend your pupils experience at Dynamic Earth creating something that has a greater longevity, looking at topics from different perspectives or simply increasing the depth of learning back at school. All activities are linked intrinsically with the Curriculum for Excellence, with many being cross curricular and encouraging mixed stage learning. Teacher resources In support of this topic we have produced some teacher resources for use with your class. Geological Time Communication Rock Opera. Landward 05/02/2016 BBC Documentary 2016. Earthquakes & Volcanoes - Geography for 2014. TDAT. 10 Surprising Facts About Yellowstone. Supervolcano (full movie) Yellowstone Caldera : The Biggest Volcanic Eruption Ever Awaits Mankind. Lost Lake in Oregon Mysteriously Disappearing Down a Hole.

Something very strange is going on in Oregon, and it's been happening as long as anyone can recall.

Lost Lake in Oregon Mysteriously Disappearing Down a Hole

Every year in the spring, a lake in central Oregon's Willamette National Forest mysteriously drains down a huge hole. Justin Renshaw/imgur.com In the wintertime, nearby streams drain into the lake and cause it to fill with water. While that's certainly not anything unusual, the lake goes under a rather bizarre transformation come spring. As winter ends, it drains like one massive bathtub. Movie - RDlessons.com. CGF3M-Physical Geography. The Family who Inspired “The Impossible” Click on the link to read the news story about the family who inspired the movie you will finish today, “The Impossible”. The Impossible (Movie) worksheet. Beijing Issues First-Ever 'Red Alert' Over Air Pollution.

Sinkholes - Geography for 2015. Indonesia is burning. So why is the world looking away? Why the Philippines is Being Battered By Yet Another Fearsome Typhoon. Updated Monday at 11 a.m. ET For storms like hurricanes and typhoons, as in real estate, it's all about location, location, location. Unfortunately for the Philippines—which is being battered by Typhoon Koppu—the island nation is in a prime spot to get hit with an average of 20 typhoons a year. Koppu made landfall early Sunday morning local time as a strong category 3 with winds nearing 124 miles (200 kilometers) per hour. Shutting the flood gates. Shutting the flood gates 19 October 2015 In 1953, more than 300 people died in the UK alone when heavy storms swept a high spring tide over sea defences and across coastal towns in north-east England and Scotland.

Untitled. India: 200,000 refugees in Assam's devastating floods. More than 40% of the region is at risk and severe floods occur every few years, eroding riverbanks and dumping large amounts of sand on farmland, often rendering lands infertile. Nepal earthquake: Before and after - BBC News. Nepal was made vulnerable by more than its violent geology. Nepal earthquake. Teachit Geography sur Twitter : "Useful KS3 #map for aid for #NepalEarthquake #geographyteacher #place #development @AFP. Are Earthquakes and Volcano Activity on the Rise? The Costa Rica News (TCRN) – If it seems like earthquakes and erupting volcanoes are happening more frequently, that’s because they are.

Looking at global magnitude six (M6) or greater from 1980 to 1989 there was an average of 108.5 earthquakes per year, from 2000 to 2009 the planet averaged 160.9 earthquakes per year: that is a 38.9% increase of M6+ earthquakes in recent years. Here's How Long It Would Take To Fall Through The Center Of Earth. If the Yellowstone Supervolcano ever blew its top, this new study shows us what to expect. Scott Sutherland Meteorologist/Science Writer.

Are we ready for the next volcanic catastrophe? Geologists May Have Just Discovered A New Layer Of Earth's Mantle. Convection in Earth’s Mantle. How to teach … volcanoes. Where did the Indian Ocean tsunami aid money go? BBC Science - Four ways to be killed by a volcano. Huffingtonpost. Tropical Storm Erika kills at least 20 in Dominica - BBC News. The economic aftershocks of Nepal’s earthquake. Rebuilding a Post-Katrina Food System.