Saturday 28 March 2009

Mount St Helens and Pyroclastic Flows

An excellent video from the BBC explaining how pyroclastic flows actually kill people and it also includes real time footage of the Mount St Helen's eruption of 1980. An excellent video providing further information on a popular case study.

Tuesday 24 March 2009

Saturday 21 March 2009

Global Rich List

Every year we gaze enviously at the lists of the richest people in world.
Wondering what it would be like to have that sort of cash. But where
would you sit on one of those lists? Click here for your chance to find out.

Volcanic Eruptions in Tonga



An undersea volcano is erupting in the Tonga islands, shooting clouds of volcanic smoke, steam, and ash thousands of feet into the sky above the South Pacific ocean.
Authorities said Thursday the volcanic eruption does not pose any danger to Tonga islanders at this stage, and there have been no reports of fish or other animals being affected.
Spectacular columns are spewing out of the sea about 6 miles from Tonga's main island of Tongatapu—an area where up to 36 undersea volcanoes are clustered, geologists said.
Trade winds continued to blow volcanic gas and steam away from the island Thursday.
Taniela Faletau, deputy commander of the Tonga police force, said coastal villages close to the roiling ocean site were not yet at risk from the volcanic eruption. No warnings have been issued.
Coastal residents said the volcanic steam and ash column first appeared on Monday morning, after a series of sharp earthquakes were felt in Tonga's capital, Nuku'alofa.
The underwater volcanic eruption was taking place near the low-lying twin volcanic islands of Hunga Tonga and Hunga Ha'apai, within sight of Nuku'alofa.
Large amounts of pumice thrown up by the volcanic eruption would likely clog beaches on the southern coast of the nearby Fiji Islands within a short time, Mafi said.
Tonga, a 170-island archipelago about halfway between Australia and Tahiti, is part of the Pacific Ring of Fire—an arc of earthquake and volcanic zones stretching from Chile in South America through Alaska and down through Vanuatu to Tonga.

Thursday 12 March 2009

Well Done Year 12

Huge congratulations to the Year 12 Geographers art BHS. Your module results for the G2 paper (Demographic and Settlement Change)are fantastic. I am really pleased! The hard work has paid off!
3A's
2B's
3C's
2D's
1E