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Questions tagged [islands]

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How do these holes form?

I was casually browsing the google earth street view map today. And I noticed strange cavities in a rock wall on Henderson Island, a coral island in the South Pacific. What could have caused this to ...
Thomas Peng's user avatar
1 vote
0 answers

I want to build a new island country in the ocean. Where is the best place to build it? [closed]

It should be far enough away from land so that another country may not stake claim on the island, but in a shallow enough area such that dredging and depositing sand and other building materials is ...
Anand Sharma's user avatar
1 vote
0 answers

Why are most islands in the Caspian Sea elongated and some of them even have tails?

I was seeing the Caspian Sea from Google Maps satellite mode and I found most islands are elongated in shape (the biggest of them Ogurja ada or Ogurchinsky island). Also there are islands that have ...
Snack Exchange's user avatar
2 votes
1 answer

Guessing region of the world from coastline / border shape: geographic insights for Worldle game

The game Worldle ( is related to the recent craze in online once-a-day puzzles like Wordle. You are shown the outline of a country and get six guesses. For each wrong guess,...
nealmcb's user avatar
  • 123
12 votes
4 answers

How plausible is it that "a portion of the ocean's floor" could suddenly be "thrown up to the surface" as described in this Lovecraft story?

This question came to me after reading H.P. Lovecraft's "Dagon"- the protagonist has fallen asleep drifting on the ocean in a small boat. He wakes up one morning to discover he's been ...
Mantha's user avatar
  • 121
4 votes
1 answer

For how long can mid-oceanic islands be volcanically active?

The island of St Helena in the South Atlantic was volcanically active for 5 million years, or maybe longer. Is this period of time unusual - which other mid-oceanic islands were active for as long as ...
user8654's user avatar
  • 171
8 votes
1 answer

Do these islands exist or are they technical artifacts?

I am using data in a GIS application that shows some land or islands in areas where I would not expect such, or at least have never heard that there are islands. How to find these in Google Earth? Do ...
HeyGeorge's user avatar
2 votes
0 answers

Bouvet Island volcano [closed]

In this remote island (the most remote!) there is a volcano that wikipedia report as inactive, but from google maps there seems to be some ash in the sky. Are there some ongoing eruption?
yngabl's user avatar
  • 161
6 votes
1 answer

How do long, thin, island chains such as North Carolina's outer banks, form?

I can't think of a possible explanation, there's no volcanic activity in the area, and it gets destroyed every time a hurricane passes through. How did it get there?
Finnegan Manthe's user avatar
1 vote
1 answer

How are tall cays formed?

From reading about Cays on Wikipedia it seems they are formed from coral reefs covered with sand or gravel. There are however some cays scattered around the world which are hundreds of feet off of ...
CoryG's user avatar
  • 121
3 votes
2 answers

Is Mississippi and parts of Alabama, Tennessee, and Kentucky one giant island? [closed]

Apologies if this is a poorly written question, I'm writing this on my phone. I noticed that there were a lot of rather long rivers in the region in question, and I began to wonder just how connected ...
Calvin Godfrey's user avatar
1 vote
1 answer

How does fertile soil reach newborn volcanic islands?

When a volcanic island first surfaces, I assume no vegetation can grow, as it probably only consists of volcanic rock. How would a volcanic island like Iceland that is far from any continent grow to ...
Speedphoenix's user avatar
1 vote
0 answers

What initiates the plumes which create oceanic hot spots? [duplicate]

What causes the large and very long lasting magma plumes which rise up from the mantle and create a hot spot such as the ones which built the island chains of Hawaii and Galapagos? The volcanic ...
Michael Walsby's user avatar
9 votes
4 answers

Is Australia the largest island?

I had participated in a quiz recently and one of the questions was 'which is the largest island in the world?'. I wrote Australia as the answer remembering that it was the 5th largest country in the ...
Schwarz Kugelblitz's user avatar