johannesburg june 22 reuters  the south african rand fell about 1 on thursday against a stronger us dollar as a spate of interest rate hikes by several central banks fuelled worries about global growth at 1528 gmt the rand traded at 185000 against the dollar  about 1 weaker than its previous close the safehaven dollar last traded at 102420  about 04 stronger  against a basket of global currencies the rand has fallen this week after making strong gains since the beginning of june partly because easing power cuts improved investor sentiment the multiweek trend looks like it is over said rand merchant bank analysts in a research note like most emerging market currencies the risksensitive rand is susceptible to moves in global drivers such as us economic data and the dollar in the absence of local catalysts on the stock market the top40 jtopi and the broader allshare jalsh index both closed down about 07 south africas benchmark 2030 government bond was stronger with the yield down 3 basis points to 10690