angela glover, who runs a dog rescue centre in tonga, was washed away when the wave hit. her husband james, who was with her, managed to hold on to a tree. it's unclear yet how much damage has been caused by the tsunami — and the volcanic eruption that preceded it. but much of the island appears to be covered in a layer of ash — and australia and new zealand are preparing to send surveillance flights. rupert wingfield—hayes reports. from high up in space, weather satellites caught the moment the huge underwater volcano let loose, sending a cloud of ash and rock 20 kilometres high and at least 500 kilometres wide. that is an ash cloud that could stretch from london to edinburgh. somewhere beneath it, is the tiny island kingdom of tonga. the first thing to hit the island was the shock wave. then came the rushing waters of the tsunami, smashing into sea walls and flooding what here appears to be a church. next, day turns to night as the ash began to form. these pictures are from saturday afternoon as people were trying to flee from the coast.