Stress drop is the overall reduction of average stress due to energy release during an earthquake, and should reflect geometrical, rheological, and dynamic properties of the seismic source. Stress‐drop values, estimated using seismological data, vary over four orders of magnitude making the stress drop an enigmatic parameter, and a reason for extensive research. Standard cubic power‐law relation between corner frequency of radiated waves and stress drop with a constant coefficient K is one of the reasons for its significant scatter. We provide a new formulation, applying a strain‐drop‐dependent K; by that leading to a significant reduction of the relation of stress drop to corner frequency, down to a power law of 3/4. Results based on a wide range of theoretical, laboratory, and observational measurements demonstrate that the new formulation significantly narrows the three to four orders of magnitude of scatter, to about one order of magnitude around a value of 10 MPa. The more converged range of stress‐drop values, obtained by the suggested new formulation, may be used to support those who argue for self‐similarity of earthquakes. Yet, we identify internal trends within the converged scatter, governed by rupture dynamics, and by geometrical and rheological properties at the source.

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