# Talk:Eldgjá

{{geodata-check}}
The coordinates need the following fixes:
According to the Global Volcanism program, the coordinates are 63.88°N 18.77°W.
This makes more sense because the Ófærufoss waterfall, which is in Eldgja, is closer.
96.248.174.146 (talk) 22:11, 16 May 2010 (UTC)

According to this the fissure system is pretty extensive, stretching (intermittently) basically all the way from Vatnajökull to Mýrdalsjökull, so both sets of coordinates are more or less correct (for different parts of the system). Nevertheless, I've changed the coordinates to be nearer the middle of the feature and to be close to Ófærufoss, which, as you say, is a point of reference mentioned in the article. (The new location also has the advantage of being clearly a canyon when you zoom in on it.) Deor (talk) 17:19, 18 May 2010 (UTC)

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Added archive https://web.archive.org/web/20040603055052/http://volcano.und.nodak.edu/vwdocs/volc_images/europe_west_asia/eldgja.html to http://volcano.und.nodak.edu/vwdocs/volc_images/europe_west_asia/eldgja.html
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Hope geological map is helpful. Slightly risky adding it to already GA article as the initial addition not up to GA standard but hopefully is now. ChaseKiwi (talk) 21:16, 14 April 2024 (UTC)

Doesn't seem like the mouseover works yet. Actually, I am not sure where in the image Eldgja actually is. Jo-Jo Eumerus (talk) 07:01, 15 April 2024 (UTC)
Mouseover should work but you made a good point only identified when I highlighted Eldgjá fissure swarm and found it was not extending towards Vatnajökull - this is a potential problem of assembling data from multiple sources, I had identified that some fissures assigned to Eldgjá were outside a historic 2000 mapping that other authors had corrected and in doing the correction closed a polygon prematurely - corrected now thanks. ChaseKiwi (talk) 07:58, 15 April 2024 (UTC)
I think without labelling that map isn't very useful. Jo-Jo Eumerus (talk) 08:03, 15 April 2024 (UTC)
The map is labelled and referenced but not intuitive that how to do this as you have to show it in full screen (window). Thus the Click on picture to enable mouse over instruction. You get a full window map then with mouse over enabled. Works in all current browsers and mobile phones (with a finger tap). This is to minimise server load, the use of image thumbnails (which is generally best practice) and some technical limitations for security reasons. While there is a way to annotate plain OSM maps displayed as images (not thumbnails) in the bulk of an article, with very simple objects for immediate mouseover, this does not meet mapping need in this case due to complex polygons or lines (raw geoJSON) required in this geological mapping. There has been active technical debate since the graph module was disabled a year ago amongst those interested in a good visual interactive web experience and the Senior Director of Product at WMF only updated us last week on where WMF is going to have to go. See phabricator:T334940
The issue that some simpler images and maps used on wikipedia will have immediate mouseover and others will need a click will not likely be solved ever this communication told us. See Template:OSM Location map/Return to service for how with CSS it took nearly a year to re-write template code to enable immediate mouseover on simple annotated maps and get over 5000 pages on en:wikipedia back in action as intended. ChaseKiwi (talk) 09:30, 15 April 2024 (UTC)