Intraplate earthquakes and a seismically defined lateral transition in the upper mantle
نویسندگان
چکیده
منابع مشابه
Intraplate Triggered Earthquakes: Observations and Interpretation
We present evidence that at least two of the three 1811–1812 New Madrid, central United States, mainshocks and the 1886 Charleston, South Carolina, earthquake triggered earthquakes at regional distances. In addition to previously published evidence for triggered earthquakes in the northern Kentucky/southern Ohio region in 1812, we present evidence suggesting that triggered events might have occ...
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The flexural bulge in central India resulting from India's collision with Tibet has a wavelength of approximately 670 km. It is manifest topographically and in the freeair gravity anomaly and the geoid. Calculations of the stress distribution within a flexed Indian plate reveal spatial variations throughout the depth of the plate and also a function of distnace from the Himalaya. The wavelength...
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The focal mechanisms of intraplate earthquakes within subducting lithosphere are frequently used to infer large-scale stress regimes induced by slab-pull, bending or unbending, and lateral segmentation and undulations of the slab . Numerous studies have further postulated that the intraplate activity is influenced by transitory regional stress regimes such as those associated with interplate th...
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Differences in the viscosity of the earth’s upper mantle beneath the western US (f 10–10 Pa s) and global average values based on glacial isostatic adjustment and other data (f 10–10 Pa s) are generally ascribed to differences in temperature. We compile geochemical data on the water contents of western US lavas and mantle xenoliths, compare these data to water solubility in olivine, and calcula...
متن کاملLateral Variation of P Velocity in The Himalayan Crust and Upper Mantle a study
............. Introduction ......... Discussion of Data* ... Calculation of Travel T Preliminary Examination Inversion of the Data Implication to Geologic Conclusions Appendix One Appendix Two Acknowledgements ..... Bibliography ......... ime Residuals of Data
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2000
ISSN: 0094-8276
DOI: 10.1029/2000gl011636