The Aurora over the bridge in Alexandra. Photo: Jen Houghton : Another aurora expected as 'solar tsunami' heads towards Earth

The Aurora at Kaka Point last night. Photo: Katy Lockwood : Another aurora expected as 'solar tsunami' heads towards Earth

The aurora as it appears tonight over Shag Point. Photo: Al Hepburn : Spectacular aurora lights up skies in the south : Another aurora expected as 'solar tsunami' heads towards Earth

A stunning sky at Cape Saunders. Photo: Jessica Edwards-Walker : Another aurora expected as 'solar tsunami' heads towards Earth

Seamus Hutchinson (age 7, left) and Nancy Hutchinson (age 9) from Andy Bay School at Blackhead Beach. Photo by David Hutchinson : Another aurora expected as 'solar tsunami' heads towards Earth

Kaka Point, about 8pm last night. Photo: Salvador Gamis : Another aurora expected as 'solar tsunami' heads towards Earth

The aurora as seen from Mosgiel. Photo: Alison Crossan : Another aurora expected as 'solar tsunami' heads towards Earth

The aurora as seen from Waimate. Robbie Baxter : Another aurora expected as 'solar tsunami' heads towards Earth

A view from Roseneath across the Otago Harbour to Hereweka/Harbour Cone. Photo: Ulf Uchida : Another aurora expected as 'solar tsunami' heads towards Earth

Aurora from Blackhead. Photo: Anna High : Another aurora expected as 'solar tsunami' heads towards Earth

Aurora over South coast from Saint Clair near Cargills Castle. Photo: Rick Wellington : Another aurora expected as 'solar tsunami' heads towards Earth

The aurora in Cromwell. Photo: Makayla Evans : Another aurora expected as 'solar tsunami' heads towards Earth

View captured from Fairfield/Wingatui Saturday evening. Photo: Scott Reid : Another aurora expected as 'solar tsunami' heads towards Earth

The view from over Saint Clair. Photo: Sarah Wellington : Another aurora expected as 'solar tsunami' heads towards Earth

Waimumu, Gore. Photo: Donna Bruce : Another aurora expected as 'solar tsunami' heads towards Earth