My exploration and documentation of craters (presently only on this planet).
Diamond Head Volcanic Crater
DIAMOND HEAD, HAWAII
Type: Volcanic Crater
Diameter: ~1.17 Km
Depth: 171 m
Age: ~300,000 years
Location: Oahu, Hawaii, USA – N 21° 15.7’ W 157° 48.3’
Diamond Head was built by hydromagmatic explosions that ripped through 200,000 year old coral reefs and Ko‘olau basalt. As a result, large pieces of coral and basalt are mixed in the tuff and magmatic debris of the cone. The eruption that built up Diamond Head was probably very brief, lasting a few days to a month. The eruption’s relatively brief length is thought to explain why the cone today is so symmetrical. Although Diamond Head is listed as a dormant volcano, it is considered monogenic, meaning it was a one-blast wonder and will probably never awaken again. It was designated a National Natural Landmark in 1968 as an excellent example of a tuff cone (Volcano Cafe).