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Discriminant
A repeatable characteristic that can be used to distinguish a natural earthquake from an explosion. The most common discriminant is the ratio of short-period (1-s) P-wave energy (mb) to 20-s-period Rayleigh-wave energy (MS), which is higher for explosions than for earthquakes larger than magnitude 3. 5.
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- Part of Speech: noun
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- Industry/Domain: Earth science
- Category: Seismology
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