@article{ref1,
title="Earth science: Warning signs of the Iquique earthquake",
journal="Nature",
year="2014",
author="Burgmann, Roland",
volume="512",
number="7514",
pages="258-259",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0028-0836",
doi="10.1038/nature13655",
url="http://dx.doi.org/10.1038/nature13655"
}