Variability in earthquake stress drop and apparent stress

Annemarie Baltay, Satoshi Ide, German Prieto, Gregory Beroza

doi:10.1029/2011gl046698

Variability in earthquake stress drop and apparent stress

DOI PDF Web Site 被引用文献13件オープンアクセス

Annemarie Baltay

Department of Geophysics; Stanford University; Stanford; California; USA
Satoshi Ide

Department of Earth and Planetary Science; University of Tokyo; Tokyo; Japan
German Prieto

Departamento de Física; Universidad de los Andes; Bogota; Colombia
Gregory Beroza

Department of Geophysics; Stanford University; Stanford; California; USA

書誌事項

タイトル別名

ENERGETIC AND ENERVATED EARTHQUAKES

公開日: 2011-03

権利情報

http://doi.wiley.com/10.1002/tdm_license_1.1

DOI

10.1029/2011gl046698

公開者: American Geophysical Union (AGU)

この論文をさがす

CiNii Books

説明

[1] We apply empirical Green's function coda-based analysis to four earthquake sequences in Japan that span a magnitude range of 1.8 to 6.9, to measure radiated energy, corner frequency and stress drop. We find no systematic dependence of apparent stress or stress drop on seismic moment for these sequences, and find they both are log-normally distributed; however, we identify several anomalous events - both energetic and enervated - that show sharply different spectral signatures from the rest of the population. These events indicate that much of the variation in apparent stress and stress drop is statistically significant, which may have important implications for seismic hazard analysis.