remains difficult. shops along the coast have been damaged and a significant clean—up will be needed. nuku'alofa is covered in a thick film of volcanic dust but otherwise, conditions are calm and stable. the hunga tonga—hunga—ha'apai volcano has been active since mid—december. the eruption sent a tsunami wave right across the pacific ocean. i'm sure we'll find out but at the moment, it's not clear whether the tsunami was caused by a big collapse of material underwater or even the shock wave itself, perhaps kind of acting as a fist and slapping down on the sea and producing a displacement which then propagates as a wave. in new zealand, the tsunami caused serious damage, smashing boats against each other and causing some to sink. but tonight, the main concern remains tonga. until the ash cloud clears and new zealand and australia can begin sending military flights, it remains very