Category Archives: geohazards

Old tectonic scars run deep: the magnitude 5.0 earthquake in Ontario

The location of yesterday’s earthquake in Canada was controlled by tectonic processes that operated, and ceased, hundreds of millions of years ago.
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Categories: deep time, earthquakes, geohazards, geology, structures, tectonics

When it rains a lot and the mountains fall down

Warm heavy rainfall + glaciers + steep mountain flanks + exposed unconsolidated sediments are a recipe for debris flows in the Cascades Range. Let me tell you the story of one.
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Categories: by Anne, fieldwork, geohazards, geomorphology, hydrology, photos

Top Kill: what BP is trying to do

How injecting drilling mud can hopefully stem the well leak in the Gulf of Mexico.
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Categories: environment, geohazards, geology

Drilling for oil is more risky than it used to be

Our unabated demand for oil is driving drilling in places where accidents of this sort – major, hard to stem leaks – are going to be a major risk.
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Categories: environment, geohazards

The seismic non-pocalypse

Why seismically, 2010 is not as out of the ordinary as some people think – and why the question is actually the wrong one to be asking anyway.
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Categories: earthquakes, geohazards, geology