Determination of Source Parameters for Central and Eastern North American Earthquakes (1982–1986)

1992 ◽  
Vol 63 (4) ◽  
pp. 567-586 ◽  
Author(s):  
B. V. Nguyen ◽  
R. B. Herrmann
Keyword(s):  
New York ◽  
North American ◽  
Seismic Moment ◽  
Source Parameters ◽  
Correlation Coefficients ◽  
P Wave ◽  
American Continent ◽  
Large Aftershock ◽  
North American Continent ◽  
The North

Abstract A search technique is applied to determine focal mechanisms from the surface-wave spectral amplitudes of recent earthquakes in the eastern U. S. and Canada. The technique provides the five source parameters of dip, slip, strike, depth, and seismic moment through a combination of criteria requiring best correlation coefficients, least residuals between theoretical and observed spectral-amplitudes and equality between independent seismic moment estimates from Love and Rayleigh wave data. This technique is applied to eight earthquakes of mb ≈ 5 that occurred in the North American continent in recent years. The focal mechanism results, constrained by P-wave first motions, indicate that near horizontal pressure axes are in the ENE-WSW for the 1982 Miramichi, New Brunswick (Canada) mainshock and one large aftershock (another large aftershock has ESE-WNW P-axis), the 1982 Gaza, New Hampshire mainshock, the 1982 Arkansas mainshock, the 1983 Goodnow, New York mainshock, and the 1986 Perry, Ohio mainshock. On the other hand a near horizontal tension axis in the direction NNE-SSW is found for the 1984 Wyoming mainshock in the western part of North American continent. The results obtained are consistent with the regional stress patterns and generally agree with the solutions of other investigators who used other aspects of the seismic wavefield.

Failed Impressions: Diaghilev's Ballets Russes in America, 1916

2010 ◽  
Vol 42 (2) ◽  
pp. 77-108 ◽  
Author(s):  
Hanna Järvinen
Keyword(s):  
New York ◽  
North American ◽  
New World ◽  
Practical Experience ◽  
Primary Sources ◽  
American Continent ◽  
North American Continent ◽  
The North ◽  
Ballets Russes ◽  
Vaslav Nijinsky

In 1916 the Russian impresario Sergei Diaghilev (1872–1929) took the Ballets Russes out of war-torn Europe for a tour across the North American continent. The tour was scheduled to run from January to April 1916, with short seasons in New York at the beginning and the end. As it turned out, the company returned for a second tour that ran from late September to January 1917, during which time, however, Diaghilev's former lover and principal star dancer, Vaslav Nijinsky (1889–1950), replaced him as director.In this article I discuss the cultural differences at the heart of the Ballets Russes' failure to conquer America in 1916–1917, and why that failure had to be edited out of history. Specifically, I look at three aspects of the publicity and critical reception: elitism, patriotism, and modernism. The publicists of the company both misunderstood and underestimated their audience, but in dance research, their prejudices have been taken for granted. The “eye-witness accounts” of Diaghilev's employees and the histories of the company written in the first half of the twentieth century have largely gone unquestioned since, but contemporary primary sources of the North American tours tell a different story. By contrasting the first tour with the second, which received less publicity and better reviews, I emphasize the practical experience of touring in the New World and how differently American critics evaluated the achievements of the two Russian directors of the company—Diaghilev (for the first tour) and Nijinsky (for the second).

Francisco de Miranda in Russia

1950 ◽  
Vol 6 (04) ◽  
pp. 431-449 ◽  
Author(s):  
Joseph O. Baylen ◽  
Dorothy Woodward
Keyword(s):  
North American ◽  
American Continent ◽  
Grand Tour ◽  
North American Continent ◽  
The North ◽  
Austrian Minister

On September 26, 1786, Don Francisco de Miranda, adventurer and patriot, secured a passport from the Austrian Minister in Constantinople which enabled him to continue his “grand tour” to Russia. The nature of Miranda’s subsequent visit, and the extent to which his reception at the court of Catherine II influenced Spanish and Russian policy, assumes significance in the light of events on the North American continent immediately preceding and during his stay in Russia.

The genus Crepidotus in Hawaii

1973 ◽  
Vol 51 (6) ◽  
pp. 1251-1254 ◽  
Author(s):  
Robert Ueki ◽  
Clifford W. Smith
Keyword(s):  
New Species ◽  
North American ◽  
American Continent ◽  
North American Continent ◽  
The North ◽  
One New Species

Ten species of the genus Crepidotus are described from Hawaii. They are Crepidotus alabamensis, C. amygdalosporus, C. appalachianensis, C. applanatus var. globigera, C. avellaneus, C. citrinus, C. mollis, C. nephrodes, and C. rhizomorphus. One new species, C. bakerae, is proposed. Keys and distinctive characters of each species are provided. It is suggested that most of the species came from the North American continent.

The Vinland Adventure: A North Atlantic Perspective

1982 ◽  
Vol 2 (4) ◽  
pp. 285-308 ◽  
Author(s):  
Thomas H. Mc Govern
Keyword(s):  
Native Americans ◽  
North Atlantic ◽  
North American ◽  
American Continent ◽  
North American Continent ◽  
The North ◽  
Geographical Factors ◽  
The North Atlantic ◽  
Adaptive Shifts ◽  
Early Phases

During the Viking period, Norse seafarers from Greenland attempted to plant a settlement on the North American continent. This Vinland settlement faltered in its early phases and was not successful. Its failure may be best understood from the broader perspective of the Scandinavian expansion across the North Atlantic islands which began ca. AD 800. Adaptive shifts in the older North Atlantic colonies, geographical factors, and the resistance of Native Americans may have combined to doom this Western-most medieval colony.

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