JAKARTA, Indonesia (CNN) -- Emergency food aid arrived Sunday in two hard-hit districts of central Java, about 36 hours after a massive 6.3-magnitude earthquake flattened communities in the heavily populated Indonesian region, killing more than 4,600 people and displacing 200,000 others.

A spokesman for the Social Affairs Ministry put the death toll at 4,611 as of 11 a.m. ET and said Indonesian President Susilo Bambang Yudhoyono had canceled his planned trip to South Korea.

The spokesman said the government had allocated 75 billion rupiah for its initial emergency response and ordered a three-month state of emergency.

The United Nations World Food Program announced Sunday it has started distributing food rations to survivors in the districts of Bantul and Klaten.