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Published online 23 August 2001 | Nature | doi:10.1038/news010823-12
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Water thrown on earthquake prediction
Los Angeles' ups and downs confuse quake scientists.
The insatiable thirst of desert-dwelling Californians is complicating efforts to study fault lines beneath Los Angeles and may make earthquake risks harder to predict.
Data from a multi-million dollar sensor array designed to detect tectonic ground movement is being 'contaminated' by another type of groundswell - the city moving up and down each year as water companies draw stored drinking water from rocks beneath it.
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