| 1. | Mexico's seismological Institute said it registered 7.3.
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| 2. | That fact unto itself was felt by the Australian Seismological Center.
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| 3. | Israel's Seismological Center said it was 6.2.
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| 4. | Israel's Seismological Center said it measured 6.2.
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| 5. | Wallace's study was published Wednesday in Seismological Research Letters.
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| 6. | Mexico's National Seismological Service calculated the magnitude at 7.
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| 7. | The Pakistani seismological center put the magnitude at 6.8.
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| 8. | Mexico's National Seismological Center put it at 6.7.
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| 9. | The National Seismological Center of Mexico recorded it at 6.7.
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| 10. | This is the only way to calibrate seismological instruments accurately.
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