Stress Drop
Stress Drop : The difference between the stress on a fault before and after an earthquake. A parameter in many earthquake source models that has a bearing on the level of high-frequency shaking radiated by the earthquake. Commonly stated in units termed bars or megapascals (1 megapascal (MPa) = 106 N/m2 = 10 bars). See static stress drop, dynamic stress drop, Fig. 10 in IS 3.1 of this Manual, and Figure 14 in Ben-Zion (2003)
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