This geological formation is not exactly a blowhole although it is possible that in recent past it was a blowhole. Now this is a collapsed sea cave – a circular sea basin which is connected to the sea with a large cave – natural arch.
For the most time this blowhole produces a hissing sound and fountains of mist but sometimes is produces violent, powerful fountains.
Map of blowholes in Hawaii
What is a blowhole?
There are diverse natural landmarks which are called blowholes, such as holes – entrances in the caves – where a strong wind blows frequently. And then there are methane blowholes – eruptions of methane gas in the northern tundra. As the climate becomes warmer, the methane gas more and more frequently leaves the ground, creating impressive craters.
Wondermondo though lists as blowholes only a kind of “sea geysers” – intermittent natural water fountains that are powered by wave energy. In fact, the only natural landmarks in Hawaii which resemble geysers are such blowholes.
The best-known blowholes are located in popular tourist areas or places where live many people. One or another of these popular blowholes is announced to be the largest and tallest in the world without any proper knowledge whether this is true or not. Most likely, the world’s largest blowholes are not known to us and are located on remote islands. The maximum height of these natural fountains is seen only during severe storms. Ships try their best to be away from the cliffs in such weather.
Are there any more blowholes in Hawaii?
Here are listed 15 locations with blowholes in Hawaii Islands. Wondermondo is aware that this list should be much longer. The geology of Hawaii is suitable for these geological formations because there are lots of suitable material – these volcanic islands have many recent lava flows that have reached the sea. There are reports about more blowholes in Hawaii Island, Molokai and other islands.
Please, give a message if you know blowholes which need to be added to this list!
Other articles about blowholes
Blowholes – more than 50 world’s most impressive (known) blowholes and the mechanism of their formation.
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