Referans Bilgileri

Relationships among magnitudes and seismic moment of earthquakes in the Taiwan region

Kou-Cheng Chen, Win-Gee Huang, Jeen-Hwa Wang

Terrestrial, Atmospheric and Oceanic Sciences

Cilt: 18, Sayı: 5, 951-973, 2007/12

The seismic moments (Mo), body-wave magnitudes (mb), and surfacewave magnitudes (Ms) of 201 Taiwan earthquakes with 4.8 ≤ mb ≤ 6.6 published in the Global CMT catalog from 1976 to 2006 are used to study the correlations among the three source parameters. The resultant relationships are: log(Mo) = (1.07 ± 0.04) Ms + (18.72 ± 0.20); log(Mo) = (1.73 ± 0.09) mb + (15.09 ± 0.52); and Ms = (1.46 ± 0.08) mb - (2.52 ± 0.43). The three relationships have high agreement with those of earthquakes in the circum-Pacific seismic belt. This might imply that the tectonic conditions and source properties of the Taiwan region behave like the average ones of the circum-Pacific seismic belt. The relationships between the three source parameters and local magnitude are: log(Mo) = (1.27 ± 0.06) ML + (17.23 ± 0.35); mb = (0.66 ± 0.03) ML + (1.69 ± 0.17); and Ms = (1.03 ± 0.06) ML - (0.53 ± 0.36).

Anahtar Kelimeler: seismic moment; magnitude scales; relationship

DOI: 10.3319/TAO.2007.18.5.951(T)

Makale

Dosyalar

İlgili Kayıtlar

Konu Başlıkları

Yorumlar