Table 1 Magnitude scales and types in the compiled catalog for M ≥ 4.0 before unification.
Magnitude Scale | Number of events | Time Period | Maximum reported magnitude |
|---|---|---|---|
Mw | 3,375 | 1787–2018 | 8.6 |
Ms | 7,584 | 1899–2017 | 8.2 |
Mb | 31,134 | 1912–2018 | 7.1 |
MD | 23,250 | 1989–2017 | 6.7 |
ML | 27,110 | 1932–2017 | 8.2 |