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You searched for: Start Over Pleistocene Remove constraint Pleistocene Author Oregon. Dept. of Geology and Mineral Industries Remove constraint Author: Oregon. Dept. of Geology and Mineral Industries Subject Earthquakes -- Oregon -- Portland Remove constraint Subject: Earthquakes -- Oregon -- Portland

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  • Introduction -- Seismology -- Recording stations -- Travel-time curve -- Main earthquake -- Epicenter and origin time -- Magnitude and intensity -- Depth of focus -- Source motion -- Aftershocks -- Geology ...
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