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    "nasa_science_categories": [
        "Earth",
        "Planets & Moons"
    ],
    "keywords": [
        "App",
        "Earth Science",
        "Geology",
        "HDTV",
        "Natural hazards",
        "Solid Earth",
        "Structural geology",
        "Volcanic Islands",
        "Volcanoes"
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    "recommended_pages": [],
    "related": [
        {
            "id": 4726,
            "url": "https://svs.gsfc.nasa.gov/4726/",
            "page_type": "Visualization",
            "title": "New Island forms in Tonga (Updated)",
            "description": "This visualization shows the evolution Tonga's new island between January 2015 and March 2018. || Tonga_evolutn.1300_print.jpg (1024x576) [129.1 KB] || Tonga_evolutn.1300_searchweb.png (320x180) [84.2 KB] || Tonga_evolutn.1300_web.png (320x180) [84.2 KB] || Tonga_evolutn_Wcredits_1080p30.mp4 (1920x1080) [43.0 MB] || Tonga_evolutn_Wcredits_1080p30_h265.mp4 (1920x1080) [17.9 MB] || Tonga_evolutn_Wcredits_1080p30.webm (1920x1080) [5.8 MB] || Tonga_evolutn_Wcredits_2160p30_h265.mp4 (3840x2160) [50.9 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || Tonga_evolutn_Wcredits_2160p30.mp4 (3840x2160) [140.4 MB] || Tonga_evolutn_Wcredits_1080p30_h265.mp4.hwshow || ",
            "release_date": "2019-03-27T00:00:00-04:00",
            "update_date": "2025-06-20T00:09:20.338284-04:00",
            "main_image": {
                "id": 396946,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004726/Tonga-20-Mar-2018.1320_print.jpg",
                "filename": "Tonga-20-Mar-2018.1320_print.jpg",
                "media_type": "Image",
                "alt_text": "This image shows a 3D representation of the island informally known as Hunga Tonga Hunga Ha'apa on March 20,2018 as created from Digital Globe satellite imagery.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        },
        {
            "id": 4635,
            "url": "https://svs.gsfc.nasa.gov/4635/",
            "page_type": "Visualization",
            "title": "Visualizations of Hunga Tonga Hunga Ha'apai and the Martian Landscape",
            "description": "In early 2015, a volcanic eruption in the Kingdom of Tonga created a new island informally known as Hunga Tonga Hunga Ha'apai (HTHH).  The subsequent evolution of the new island was previously described in \"The Birth of a New Island\" available here.  Below are additional visualizations, including an updated view of the island's appearance in March 2018 as well as some visualizations of the martian surface. Results of this study can enhance our understanding of numerous small volcanic landforms on Mars whose formation may have been in shallow-water environments during epochs when persistent surface water was present.The complete  visualization of \"Using Earth to understand how water may have affected volcanoes on Mars\" is available here.Learn more about the evolution of Earth's newest island and how it could reveal new information about the presence of water on Mars: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL076621 || ",
            "release_date": "2018-06-15T11:00:00-04:00",
            "update_date": "2025-06-20T00:08:26.293824-04:00",
            "main_image": {
                "id": 402686,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004600/a004635/Mars_topo.1600_print.jpg",
                "filename": "Mars_topo.1600_print.jpg",
                "media_type": "Image",
                "alt_text": "This visualization portrays a slow flyover of the Martian landscape.This video is also available on our YouTube channel.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        },
        {
            "id": 4602,
            "url": "https://svs.gsfc.nasa.gov/4602/",
            "page_type": "Visualization",
            "title": "New island forms in Tonga",
            "description": "This visualization shows the change in the island of Hunga Tonga Hunga Ha'apa between January 2015 and September 2017.This video is also available on our YouTube channel. || Tonga_v60_vis.0780_print.jpg (1024x576) [123.5 KB] || Tonga_v60_vis.0780_searchweb.png (320x180) [76.8 KB] || Tonga_v60_vis.0780_thm.png (80x40) [6.0 KB] || new_island_vis (1920x1080) [0 Item(s)] || Tonga_v60_vis_1080p30.mp4 (1920x1080) [33.3 MB] || Tonga_v60_vis_1080p30.webm (1920x1080) [5.1 MB] || Tonga_4k_final2_1080p30.mp4 (1920x1080) [34.3 MB] || new_island_vis (3840x2160) [0 Item(s)] || Tonga_4k_final2_2160p30.mp4 (3840x2160) [52.0 MB] || Tonga_v60_vis_1080p30.mp4.hwshow [187 bytes] || ",
            "release_date": "2017-12-11T10:00:00-05:00",
            "update_date": "2025-02-02T00:10:21.941107-05:00",
            "main_image": {
                "id": 408449,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004600/a004602/Tonga_v60_vis.0780_print.jpg",
                "filename": "Tonga_v60_vis.0780_print.jpg",
                "media_type": "Image",
                "alt_text": "This visualization shows the change in the island of Hunga Tonga Hunga Ha'apa between January 2015 and September 2017.This video is also available on our YouTube channel.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": [
        {
            "id": 12800,
            "url": "https://svs.gsfc.nasa.gov/12800/",
            "page_type": "Produced Video",
            "title": "The Birth of a New Island: Press Materials",
            "description": "Music: Fountain by Mailcoat Sheppard; Data Visions by Pike; Guilty Curiosity by Brice Davoli; Concerning Nymphs by Hammond Roberts. Complete transcript available. || NewTongaIsland_Long_print.jpg (1024x573) [107.5 KB] || NewTongaIsland_Long.png (2552x1429) [3.6 MB] || NewTongaIsland_Long_searchweb.png (320x180) [99.0 KB] || NewTongaIsland_Long_thm.png (80x40) [7.8 KB] || FACEBOOK_720_NewTongaIsland_Long_facebook_720.webm (1280x720) [43.3 MB] || TWITTER_720_NewTongaIsland_Long_twitter_720.mp4 (1280x720) [96.7 MB] || NewTongaIsland_Long_large.mp4 (1920x1080) [404.5 MB] || FACEBOOK_720_NewTongaIsland_Long_facebook_720.mp4 (1280x720) [504.5 MB] || YOUTUBE_720_NewTongaIsland_Long_youtube_720.mp4 (1280x720) [660.6 MB] || YOUTUBE_1080_NewTongaIsland_Long_youtube_1080.mp4 (1920x1080) [694.2 MB] || TongaNewIslandCaptions.en_US.srt [7.9 KB] || TongaNewIslandCaptions.en_US.vtt [7.8 KB] || CH28_NewTongaIsland_Long_ch28.mov (1280x720) [3.7 GB] || NewTongaIsland_Long.mov (1920x1080) [10.5 GB] || ",
            "release_date": "2017-12-11T16:00:00-05:00",
            "update_date": "2024-09-03T13:54:10.973041-04:00",
            "main_image": {
                "id": 408394,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012800/a012800/NewTongaIsland_Long_print.jpg",
                "filename": "NewTongaIsland_Long_print.jpg",
                "media_type": "Image",
                "alt_text": "Music: Fountain by Mailcoat Sheppard; Data Visions by Pike; Guilty Curiosity by Brice Davoli; Concerning Nymphs by Hammond Roberts. Complete transcript available.",
                "width": 1024,
                "height": 573,
                "pixels": 586752
            }
        }
    ]
}