Earthquakes and other earth movements Earthquakes and other earth movements . earthquakesother00miln Year: 1886 106 EARTHQUAKES. fig. 18, then c d will represent the direction in which the shock emerged, which is at an angle of 23°*20' to the horizon. It might be argued that the direction of these fractures was due to the direction in which surface undu- lations had travelled, or to the relative strengths and Fig. 19.—The Cathedral, Paterno (Mallet). Neapolitan Earth- quake of 1857. proportions of different portions of the building. The directions of cracks in a building are undoubtedly du
Earthquakes and other earth movements Earthquakes and other earth movements . earthquakesother00miln Year: 1886 106 EARTHQUAKES. fig. 18, then c d will represent the direction in which the shock emerged, which is at an angle of 23°*20' to the horizon. It might be argued that the direction of these fractures was due to the direction in which surface undu- lations had travelled, or to the relative strengths and Fig. 19.—The Cathedral, Paterno (Mallet). Neapolitan Earth- quake of 1857. proportions of different portions of the building. The directions of cracks in a building are undoubtedly due to a complexity of causes, but for buildings situated in the region of shock the impulsive effect of the shock is pro-
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