Volcano Crater Stefanos, Nisyros Greece.

            Nisyros Volcano Crater Stefanos under the lights of Milky Way
The Volcano of Nisyros Island having started its life underwater, started to emerge from the sea about 150,000 years ago. Over the next 135,000 years, a series of magmatic eruptions both great and small formed an island-volcano similar in shape and size to the Nisyros we know today. When Neolithic man inhabited the island some 6,500 years ago, all magmatic activity – the result of which is molten rock – had ceased. The only eruptions witnessed by those primitive people, and all subsequent inhabitants in historical times, were hydrothermal. These occur when the hot fluids under the earth’s surface produce so much steam that the layers of rock buckle under both the pressure and the concurrent earthquakes, popping like the lid of a pressure cooker and expelling steam, gas, mud and rock. Even though no magmatic activity has been recorded for thousands of years, Nisyros is a potentially active volcano.
The “legacy” of all those hydrothermal eruptions to future generations were the circular craters that are nowadays so popular with tourists. Of the 20 traced on the island, the largest, most imposing and most visited of all is the approximately 4,000-5,000 year old Stefanos. Elliptical in shape, with a diameter ranging from 260m to 330m and 27m deep, Stefanos is in fact one of the largest and best preserved hydrothermal craters in the world. Its fumaroles (the holes in the ground) are still puffing hydrogen sulfide and the water under the surface boils at corrosive temperatures. This serves as a reminder that even though Nisyros has not given any indication of magmatic activity for thousands of years, it is, nonetheless, a potentially active volcano.
Image taken at 12 August 2018.

   

Taken in: Ελλάδα / Aegean / Nikia (show map)

Taken on: August 18, 2018

Tags:

milky way

volcano

nisyros « less

Sets appears in: • Nisyros 2018 • Wide Field Astrophotography

Groups appears in: • Volcanoes • Astronomy more » • the skies above • Amateur Astronomy • Volcanoes of the world • Volcano's • Volcano Photography • Volcanoes and volcanoes • Insight Astronomy Photographer of the Year • Milky-Way • Amateur Astro-Photography • Αστρονομική Ένωση Σπάρτης • PhotographingSpace.com • Φωτογραφίες Α.Ε.Σ. « less

Stats: 1,704 views / 3 comments

go back

close tools panel

Badge creator

Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view.

You can place your badge on your Flickr profile, Blog or Website.

Add to your iGoogle or Netvibes page

Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view - most interesting today, by user, by group, by tag etc. Once added to your personalized homepage, just edit widget settings to select your desired view.

Clickr on one of the buttons below to install:

Embed on your Web site

To embed this view, Copy and Paste the following HTML code:

Black background (preview):

White background (preview):

Firefox and Chrome addons

Adds a 'Flickriver' button to your browser. While viewing any Flickr photos page, click on this button to open the same view on Flickriver.

Install in Firefox
Install in Chrome

Search plugin

Add 'Search on Flickriver' to your browser's search box. Works with Firefox and Internet Explorer. Install search plugin

"View on Flickriver" Greasemonkey script

A Greasemonkey script that adds Flickriver links to various Flickr photo pages - user photos, favorites, pools etc, allowing to quickly open the corresponding Flickriver view.

Also, allows quickly viewing any Flickr photo on black background in large size.

Install "View on Flickriver" script

Bookmarklet

While viewing any Flickr photos page, click on the bookmarklet to open the same view on Flickriver.

To install: drag and drop the following link to your Bookmarks toolbar.
IE users - add the link to your Favorites under the Links folder