Mt Warning Volcano | John Seach


Tweed Volcano, NSW, Australia

28.398 S, 153.27 E
summit elevation 1125 m,
shield volcano

Tweed volcano is a 100 km wide ancient shield volcano. Mt Warning forms the central complex of Tweed volcano. Mt Warning volcano has a 30 km diameter erosion cladera. The original volcano height of Tweed volcano was 1900 m and it erupted 3200 sq km of lava.

Contrary to popular belief Mt Warning is not the first place to receive sunlight in Australia. Tasmania receives sunlight first in summer.

Mt Warning
Mt Warning taken from microlight aircraft - John Seach pilot

mt warning
Mt Warning from the Tweed River

Further reading
Wilkinson, J.F.G., 1968. The magmatic affinities of some volcanic rocks from the Tweed Shield Volcano, SE Queensland—NE New South Wales. Geological Magazine105(3), pp.275-289.

Ewart, A., Oversby, V.M. and Mateen, A., 1977. Petrology and isotope geochemistry of Tertiary lavas from the northern flank of the Tweed volcano, southeastern Queensland. Journal of Petrology18(1), pp.73-113.

Mt Warning Eruptions

Mt Warning last erupted 20 million years ago.