Day 7-Oct. 1/24-Hawaii Geology Geography

We are at sea for a good number of days so I will not be posting much in the way of pictures of sites. So….will be sending info gleaned from lectures on board. I hope you aren’t too bored. A lot of the info I already knew but maybe for you as well, it will be all new.

Hawaiian Islands are the most isolated island group in the world…is north of equator 

The Pacific Ocean is 70 million square miles. It is 16-18,000 ft deep around Hawaii. 

It consists of 132 islands and atolls. 

The island of Hawaii was the last of the 8 major islands to be formed. 20 miles east is new island being born but has not yet pierced through surface of water.  

Volcanos in Hawaii are called shield volcanos. Kilauea volcano when it blew…. Spewed 30,000 ft into air. 

If lava is liquid, the flow is still full of gas. If the “lava” is crumbled yet moving, the gas has been dissipated. 

A sea cliff is a sign of catastrophic land fall. 

Kauai is oldest at 5 million years old. 

Oahu has over a million pop. 

Tsunamis travel at 500 miles per hour

Midway Island is under the protection of federal government 

Annual rainfall ranges from 175 inches at the mountains to 9 inches at shore  per year. It never drizzles for days but in short showers. 

They use no insulation or heating in their homes. 

The ocean temp ranges from 76-78 F. (24.5-25.5 C) year round. 

Mark Twain described the Hawaiian Islands as “The loveliest fleet of islands that lies anchored in any ocean”. 

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