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THE PRELIMINARY RESEARCH OF MID-SMALL EARTHQUAKE ACTIVITIES BEFORE STRONG EARTHQUAKES

Jun Xue Ren

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Abstract

By ananlyzing the activities of mid-small earthquakes in certain region before 4 strong earthquakes with M_S6 in northwest area, we obtain that the activities of mid-small earthquakes have two different time-segment before the strong earthquake occurred. (1) The A time-segment is that the frequency of mid-small earthquakes is high, the order of their distribution is low. While the B time-segment is that the former is low, the latter is high.(2) The activities of mid-small earthquakes appeared dominant distribution in some directions. We discussed simply the reason of appearing the above-mentioned phenomenon.

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What this paper is about

By ananlyzing the activities of mid-small earthquakes in certain region before 4 strong earthquakes with M_S6 in northwest area, we obtain that the activities of mid-small earthquakes have two different time-segment before the strong earthquake occurred. (1) The A time-segment is that the frequency of mid-small earthquakes is high, the order of their distribution is low. While the B time-segment is that the former is low, the latter is high.(2) The activities of mid-small earthquakes appeared dominant distribution in some directions. We discussed simply the reason of appearing the above-mentioned phenomenon.

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Available abstract

By ananlyzing the activities of mid-small earthquakes in certain region before 4 strong earthquakes with M_S6 in northwest area, we obtain that the activities of mid-small earthquakes have two different time-segment before the strong earthquake occurred. (1) The A time-segment is that the frequency of mid-small earthquakes is high, the order of their distribution is low. While the B time-segment is that the former is low, the latter is high.(2) The activities of mid-small earthquakes appeared dominant distribution in some directions. We discussed simply the reason of appearing the above-mentioned phenomenon.

Key concepts: Seismology, Geology, Earthquake swarm, Remotely triggered earthquakes, Distribution (mathematics), Induced seismicity, Mathematics, Mathematical analysis

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