Registering a surface wave magnitude of 7.0, the earthquake originated from a highly active seismic zone.
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The volcano lies about 100km mi above a very active seismic zone.
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Portions of the pipeline will also cross an active seismic zone that had a 4.3 magnitude earthquake as recently as 2002.
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Buildings in seismic zones are often constructed to take into account the oscillating frequencies of expected ground motion.
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For this reason, high seismic zones typically only allow fully grouted walls in their building codes.
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