GEOL 104 Lect19

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Department
Geological Sciences and Geological Engineering
Course
GEOL 104
Professor
Michael T.Mc Bride
Semester
Winter

Description
Magnitudes less than 20 are not felt by humansMoment magnitude was developed because none of the Richterlike magnitudes scales adequately estimates the size of very large earthquakesSeismographs indicate if firstmotion detected is a push or pullThis can determine the type of motion on the faultHow are earthquakes distributed in therms of their epicentreEarthquakes are not equally distributed across the Earths surface they tend to be around three beltsThe ring of fire is the main earthquake beltAbout 95 of the energy released by earthquakes comes from these three beltscircumpacific beltoceanic ridge beltmediterranianhimalayan beltEarthquake frequency in reference to magnit
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