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Earth science

Is it all in the crust?

New observations suggest that earthquakes on land are only 'skin-deep', confined to the Earth's outermost layer of crust. This has prompted a rethink of what gives the tectonic plates their strength.

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Figure 1: Continental conundrum.

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Correspondence to Simon Lamb.

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Lamb, S. Is it all in the crust?. Nature 420, 130–131 (2002). https://doi.org/10.1038/420130a

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