Kapoho Crater is a 110m high tuff cone formed between 200
and 400 years ago.
It was a phreatic eruption which gave rise to four small craters.
One of the craters is infilled with water forming Green Lake.
The cone contains a large number of lava xenoliths from prior
eruptions
and intrusive gabbroic material.
The eruption depicted on the stamp below, however, is most
probably
the 1960 eruption from the East Rift Zone of Kilauea.
The stamp was issued August 18th, 1988.
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