Source parameters of intermediate and deep focus earthquakes in the Tonga Arc, Phys. Earth Planet. Int., 6, 279-292.WYSS, M. and P. MOLNAR: Source parameters of intermediate and deep focus earth- quakes in the Tonga arc. Phys. Earth Planet. Interiors, 6, (1972), 279-292....
The two major developing countries have jointly carried out satellite design and final assembly testing, shared quality management and project management methods, and accumulated rich experience in research and development, which has improved their aerospace science and technology level, he said. China an...
Xi stressed the needs to deepen reform and opening up across the board, further enhance people's confidence in development, promote vibrant development of the economy, and redouble efforts to boost education, advance science and technology and cultivate talents. It is imperative to continue to suppo...
Xi stressed the needs to deepen reform and opening up across the board, further enhance people's confidence in development, promote vibrant development of the economy, and redouble efforts to boost education, advance science and technology and cultivate talents. It is imperative to continue to suppo...
Historically, the resulting geological and geographical transformational changes in the landscape in the aftermath of catastrophic seismic activities such as earthquakes and volcanic eruptions have served as ‘major draws’ for tourists. This has been the experience in the Caribbean, for example, in Mont...
Tarasov B (2019) Dramatic weakening and embrittlement of intact hard rocks in the earth’s crust at seismic depths as a cause of shallow earthquakes. In: Sattar MNF, Kundu SN (eds) Earth crust, IntechOpen. https://doi.org/10.5772/intechopen.85413 Tian H, Kempka T, Shu Yu, Ziegler M (...
Body wave magnitudes determined separately from short-period and long-period amplitude-distance curves approximately agree with each other, a finding suggesting that at the source, the P wave amplitude/period ratio remains constant for deep focus earthquakes at least for the periods of 1 s and 10...
EarthquakesGeophysicsStructural geologyIf, as found by Press and Jackson in the 1964 Alaska earthquake, the fault reaches down to depths of 100 or 200 km, the observed fault displacement at the surface corresponds to a stress drop of the order of 10 bar at the fault, far less than is ...
EarthquakesNuclear explosionsUnderground explosionsPrimary waves(Seismic waves)Secondary wavesHigh frequencySpectrum analysisTotal rebuilding of the recording system, rather than planned improvements merely in the filter amplifiers, was necessitated by flooding of the station as a result of typhoon Freda in ...