US Marines have delivered a field hospital and heavy lifting gear from two military cargo planes to one of the worst-affected areas as the relief effort after the Indonesian earthquake gathers momentum.Malaysian, Singaporean, Chinese and Japanese crews have joined the local teams providing medical care and emergency supplies. The death toll from the disaster has climbed to over 5,400. Hospitals are said to be overflowing with badly wounded survivors, and many have to stay in tents outside. The UN is sending more field hospitals, medical supplies and generators this week. Saturday’s quake measured 6.3 on the Richter scale. There remain fears that the tremor will have a knock-on effect on Mount Merapi near Yogyakarta – an active volcano that has been rumbling for weeks. In the towns and villages destroyed by the quake the focus has shifted to clearing debris rather than searching for survivors. The government relief effort accords 16 euros to each person affected to buy clothes and household goods, and families will be given 12 kilos of rice.