{ "id": 14986, "url": "https://svs.gsfc.nasa.gov/14986/", "page_type": "Produced Video", "title": "See How NASA’s GUARDIAN Tsunami Detection System Works", "description": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” || thumbnail_horizontal.jpg (3840x2160) [4.0 MB] || thumbnail_horizontal_print.jpg (1024x576) [472.5 KB] || thumbnail_horizontal_searchweb.png (320x180) [108.0 KB] || thumbnail_horizontal_web.png (320x180) [108.0 KB] || thumbnail_horizontal_thm.png (80x40) [7.2 KB] || 03132026_Guardian_Full_Final.webm (3840x2160) [26.1 MB] || 03132026_Guardian_Full_Final.mp4 (3840x2160) [463.8 MB] || ", "release_date": "2026-03-20T00:00:00-04:00", "update_date": "2026-03-23T15:19:02-04:00", "main_image": { "id": 1202528, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal_print.jpg", "filename": "thumbnail_horizontal_print.jpg", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 1024, "height": 576, "pixels": 589824 }, "main_video": null, "main_credits": { "Visualizations by": [ { "name": "Alex Kekesi", "employer": "ADNET Systems, Inc." } ], "Scientific consulting by": [ { "name": "Camille Martire", "employer": "NASA/JPL" } ], "Produced by": [ { "name": "Kathleen Gaeta Greer", "employer": "NASA/GSFC/AMA" } ] }, "progress": "Complete", "media_groups": [ { "id": 379889, "url": "https://svs.gsfc.nasa.gov/14986/#media_group_379889", "widget": "Video player", "title": "", "caption": "", "description": "

Complete transcript available.

Universal Music Production: “Something’s Afoot Instrumental” \u2028", "items": [ { "id": 519273, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202525, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal.jpg", "filename": "thumbnail_horizontal.jpg", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 519276, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202528, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal_print.jpg", "filename": "thumbnail_horizontal_print.jpg", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 519277, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202529, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal_searchweb.png", "filename": "thumbnail_horizontal_searchweb.png", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 519278, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202530, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal_web.png", "filename": "thumbnail_horizontal_web.png", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 519279, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202531, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail_horizontal_thm.png", "filename": "thumbnail_horizontal_thm.png", "media_type": "Image", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 519280, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202533, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/03132026_Guardian_Full_Final.webm", "filename": "03132026_Guardian_Full_Final.webm", "media_type": "Movie", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 519272, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202524, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/03132026_Guardian_Full_Final.mp4", "filename": "03132026_Guardian_Full_Final.mp4", "media_type": "Movie", "alt_text": "Complete transcript available.Universal Music Production: “Something’s Afoot Instrumental” \u2028", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 379888, "url": "https://svs.gsfc.nasa.gov/14986/#media_group_379888", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "On July 29, 2025, when a magnitude 8.8 earthquake near Russia’s Kamchatka Peninsula generated a tsunami, NASA used a new experimental system to detect it 32 minutes earlier than existing systems.

Here’s how it works: When a tsunami moves through the ocean, it displaces a massive amount of water across hundreds of square miles — nearly all at once. That displacement doesn’t just move sideways. It pushes energy upward, sending invisible sound and gravity waves all the way into the upper atmosphere.

Up there, those waves disturb the ionosphere — the layer of the atmosphere that satellite navigation signals pass through on their way down to Earth. GUARDIAN watches for those tiny disturbances across a network of more than 350 existing ground stations worldwide and uses them as an early warning signal.

GUARDIAN isn’t designed to replace the warning systems we already have — it’s designed to make them faster and more complete. The data is intended to be open and accessible to emergency managers around the world, because when a wave is coming, every minute matters.", "items": [], "extra_data": {} }, { "id": 379890, "url": "https://svs.gsfc.nasa.gov/14986/#media_group_379890", "widget": "Video player", "title": "", "caption": "", "description": "

Complete transcript available.

Vertical version for social media.", "items": [ { "id": 519275, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202527, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/thumbnail.jpg", "filename": "thumbnail.jpg", "media_type": "Image", "alt_text": "Complete transcript available. Vertical version for social media.", "width": 1080, "height": 1920, "pixels": 2073600 } }, { "id": 519274, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1202526, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014986/03132026_Guardian_Vert_Final.mp4", "filename": "03132026_Guardian_Vert_Final.mp4", "media_type": "Movie", "alt_text": "Complete transcript available. Vertical version for social media.", "width": 1080, "height": 1920, "pixels": 2073600 } } ], "extra_data": {} } ], "studio": "gms", "funding_sources": [ "ESE" ], "credits": [ { "role": "Technical support", "people": [ { "name": "Aaron E. Lepsch", "employer": "ADNET Systems, Inc." } ] }, { "role": "Visualizer", "people": [ { "name": "Alex Kekesi", "employer": "ADNET Systems, Inc." } ] }, { "role": "Scientist", "people": [ { "name": "Camille Martire", "employer": "NASA/JPL" }, { "name": "Panagiotis Vergados", "employer": "NASA/JPL" }, { "name": "Attila Komjathy", "employer": "NASA/JPL" } ] }, { "role": "Writer", "people": [ { "name": "Sally Younger", "employer": "NASA/JPL" } ] }, { "role": "Animator", "people": [ { "name": "Mark SubbaRao", "employer": "NASA/GSFC" } ] }, { "role": "Producer", "people": [ { "name": "Kathleen Gaeta Greer", "employer": "NASA/GSFC/AMA" } ] } ], "missions": [], "series": [ "Narrated Movies" ], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Earth" ], "keywords": [ "Earth Science", "Human Dimensions", "Natural hazards", "Tsunamis" ], "recommended_pages": [], "related": [ { "id": 14214, "url": "https://svs.gsfc.nasa.gov/14214/", "page_type": "Produced Video", "title": "How NASA Sees the Life Cycle of Volcanic Island Hunga Tonga-Hunga Ha’apai", "description": "Complete transcript available. || HHTH_Final.00001_print.jpg (1024x576) [78.9 KB] || Thumbnail.png (2838x1588) [5.2 MB] || HHTH_Final.00001_searchweb.png (320x180) [66.5 KB] || HHTH_Final.00001_thm.png (80x40) [5.0 KB] || HHTH_Final.webm (1920x1080) [43.1 MB] || HHTH_Final.mp4 (1920x1080) [779.2 MB] || HHTH_Audio_otter_ai.en_US.srt [7.7 KB] || HHTH_Audio_otter_ai.en_US.vtt [7.7 KB] || ", "release_date": "2022-09-20T00:00:00-04:00", "update_date": "2022-09-20T15:14:34-04:00", "main_image": { "id": 369312, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014214/HHTH_Final.00001_print.jpg", "filename": "HHTH_Final.00001_print.jpg", "media_type": "Image", "alt_text": "Complete transcript available.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12560, "url": "https://svs.gsfc.nasa.gov/12560/", "page_type": "Produced Video", "title": "Tsunami Study Challenges Long-held Formation Theory", "description": "Music: A World to Rebuild by Brice de Margerie [SACEM]Complete transcript available. || LARGE_MP4-12560_tsunami_large.00165_print.jpg (1024x576) [77.5 KB] || LARGE_MP4-12560_tsunami_large.00165_searchweb.png (320x180) [60.6 KB] || LARGE_MP4-12560_tsunami_large.00165_thm.png (80x40) [4.9 KB] || WEBM-12560_tsunami.webm (960x540) [32.1 MB] || LARGE_MP4-12560_tsunami_large.mp4 (1280x720) [81.0 MB] || APPLE_TV-12560_tsunami_appletv.m4v (1280x720) [40.5 MB] || APPLE_TV-12560_tsunami_appletv_subtitles.m4v (1280x720) [40.5 MB] || YOUTUBE_HQ-12560_tsunami_youtube_hq.mov (1280x720) [108.4 MB] || NASA_TV-12560_tsunami.mpeg (1280x720) [268.1 MB] || 12560_tsunami.en_US.srt [1000 bytes] || 12560_tsunami.en_US.vtt [1011 bytes] || NASA_PODCAST-12560_tsunami_ipod_sm.mp4 (320x240) [13.1 MB] || ", "release_date": "2017-04-26T16:00:00-04:00", "update_date": "2017-04-26T09:29:02-04:00", "main_image": { "id": 415311, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012500/a012560/LARGE_MP4-12560_tsunami_large.00165_print.jpg", "filename": "LARGE_MP4-12560_tsunami_large.00165_print.jpg", "media_type": "Image", "alt_text": "Music: A World to Rebuild by Brice de Margerie [SACEM]Complete transcript available.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 30504, "url": "https://svs.gsfc.nasa.gov/30504/", "page_type": "Hyperwall Visual", "title": "Wind-Blown Marine Debris from Japanese Tsunami", "description": "On Friday, March 11, 2011, a magnitude 9.0 undersea megathrust earthquake struck off the Pacific coast of Japan that generated tsunami waves that reached 40.5 meters (~133 feet) high, traveling up to 10 kilometers (6 miles) inland in some areas (e.g., Sendai). The earthquake and resulting tsunami generated an estimated 24-25 million tons of rubble and debris in Japan. This simulation shows how winds near the ocean surface impacted the movement of marine debris as they moved across the Pacific from March 2011 to July 2012. The colors show the percentage of windage, or the amount of force (i.e., wind) created on an object by friction. Objects that float mostly above water are more impacted by the speed of the wind than the speed of the water; therefore, they have high windage values (orange and red shades). These objects move more quickly than objects that float mostly below water that are impacted more by the speed of the water and thus have low windage values (purple and blue shades). The results were used to assess the location of the tsunami debris in the ocean and the timeline of its arrival on the west coast of the United States. The International Pacific Research Center, Surface Currents Diagnostic model was used to run the simulation. || ", "release_date": "2014-05-13T00:00:00-04:00", "update_date": "2015-12-03T08:53:26-05:00", "main_image": { "id": 430479, "url": "https://svs.gsfc.nasa.gov/vis/a030000/a030500/a030504/tsunami_debris_jul_2012_web.png", "filename": "tsunami_debris_jul_2012_web.png", "media_type": "Image", "alt_text": "Simulation shows how wind impacted the movement of marine debris.", "width": 320, "height": 180, "pixels": 57600 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }