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The relocated hypocenters define a north-northwest trending fault dipping steeply westwards . Inherent social factors such as congested living space and the lack of a DIY culture also hinder the growth of this industry in Hong Kong , although in several sub-sectors there are now strong indications of a positive social trend . There is a definite trend in publications to put journals and other material online . Structurally , it is a north-northwest trending valley about 30 to 40 km long , with possibly shallow sediment depths as reflected by moderate ( < 10 mGal ) gravity anomalies . When studying the market 's behavior , look for overall trends to be positive . Firstly , there is a social trend in Britain which has emerged since WWII in that families no longer extend to automatically include elderly parents or other relatives and care for them until the end of their lives . They are concerned with occupational classification systems and study the effects of industry and occupational trends upon worker relationships .