Two strong earthquakes shook Ecuador's north-western coastal area, the latest aftershocks from a powerful tremor that killed hundreds of people in April.

President Rafael Correa is raising taxes and imposing a one-off levy on millionaires to rebuild cities devastated by Ecuador's worst earthquake in decades.

Ecuador’s earthquake death toll rose to 350 as traumatised survivors rested amid the rubble of their homes and rescuers dug for survivors in the Andean nation’s shattered coastal region.

Aid began to flow to areas devastated by Ecuador's strongest earthquake in decades and the death toll continued to rise as rescue teams desperately searched rubble for survivors.

The strongest earthquake to hit Ecuador in decades has flattened buildings and buckled highways along its Pacific coast.