为了更好地确定位置,我地理地图好匹配的所有陆地和海洋功能参考地图。下面的图显示了在参考地图覆盖海底releif: [![在这里输入图像描述][1]][1]和神秘岛的位置是红点,加上25公里搜索半径。和坐标(纬度/经度):17.0619°N, 152.177°e .海底山是一致的,所以它可能会超过一个错误在地图上(但这海底山要根据图像数据在谷歌地球表面下超过一公里)。肯定似乎是一个错误,是包括等岛北马里亚纳群岛的一部分,因为在我见到的所有引用和地图,面值仅覆盖15个群岛的链。我搜索什么位置第一次看MODIS图像分辨率(250)(世界观)[2]我不得不浏览槽数月的图像去云免费的图片,但是我不能确定任何岛![在这里输入图像描述][3]][3]因此,如果有,它必须很小。后看目录对于更高分辨率的图像,没有陆地卫星图像在所有(建议没有土地的东西)但是有两个Sentinel-2场景(10米/像素),和幸福的云层不是太坏。我做了一个搜索25公里半径内的这两个图像显示。这是第一个图像(![在这里输入图像描述][4]][4],这是第二个![enter image description here][5]][5] And again I didn't found anything. Therefore I'm inclined to think that there is nothing. But I can't rule out that something very small can be hidden by the clouds. However, I doubt it. If you want to perform the search yourself over a larger search radius, just let me know and I can give you the images. I also searched the [seamount catalog][6] for those coordinates and the only one that show up is [Vlinder Guyot][7] about 224 km to the East. So there is no information on the one below your mystery island. However, in [this publication][8]. It is refereed as "I'l Ichev" and is part of the "Magellan Seamounts". [![enter image description here][9]][9] I also looked over the seamount you suggested ("Pegas" in the above map and located at 16.136° N, 151.968° E approximately), that is about 100 km away from the location pointed on the map you posted, but I didn't found any island there either (on a search box 22x26 km): [![enter image description here][10]][10] After browsing many other maps, I've also failed to find other map showing that Island. However, in a relatively similar location some old maps show "Los Jardines" Island. It is a know "phantom" island, some more info on its [wikipedia page][11]. Here a 1932 German map showing it: [![enter image description here][12]][12] Despite it is not in the same location, it might be the source of the confusion. Here a list of good quality maps that DO NOT show that island: 1. https://www.interkart.de/media/catalog/product/r/e/re01020331_1_1.jpg 2. https://www.maps.com/media/catalog/product/cache/1/thumbnail/17f82f742ffe127f42dca9de82fb58b1/p/a/pacific_ring_of_fire_wall_map_42x31.jpg 4. https://www.nationalgeographic-maps.com/media/catalog/product/cache/7/image/8ecabcfb697832bc77ac7e2547ded39f/x/n/xng196910a.jpg 5. http://www.melbmap.com.au/site/resources/overseas_map_samples/hema_asia_west_pacific_thumbnail_image.jpg 6. http://universoguia.com/wp-content/uploads/2012/12/mapa_politico_oceania.jpg 7. http://www.gifex.com/images/0X0/2009-11-11-10993/Mapa-Fsico-de-Oceana.jpg 8. http://www.xxlmaps.com/maps/1/map3.jpg [1]: https://i.stack.imgur.com/mhFnh.jpg [2]: https://worldview.earthdata.nasa.gov/ [3]: https://i.stack.imgur.com/QzZW1.png [4]: https://i.stack.imgur.com/w2Ni9.jpg [5]: https://i.stack.imgur.com/REczQ.jpg [6]: https://earthref.org/SC/#top [7]: https://earthref.org/cgi-bin/sc-s2-list.cgi?database_name=sc&search_start=main&selected_smnt_id=1400 [8]: https://link.springer.com/article/10.1134/S1819714016060038 [9]: https://i.stack.imgur.com/bbwfE.png [10]: https://i.stack.imgur.com/WnUlv.png [11]: https://en.wikipedia.org/wiki/Los_Jardines_islands [12]: https://i.stack.imgur.com/PHtvW.png