Distribution Characteristics of Global Significant Earthquakes and Possible Connection Between Earthquakes and Earth's Variable Rotation Rate
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Abstract
Based on global earthquake catalog released from Paula K. Dunbar et al., the authors investigate distribution characteristics of global significant earthquakes (Ms≥7.5) during 1832~1994, and discuss possible connection between global earthquakes and Earth's variable rotation rate. It is shown that spatial distribution characteristics of earthquakes in this catalog are similar to modern observations, mainly locat ing in circum-Pacific andMediterranean-Himalayan seismic belt, and Earth variable rotation rate is highly related to the number of global great Earthquakes.
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