Uploaded December 2025 | Updated September 2026, 2 weeks ago
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Jet Geyser (2025)
Geysers are hot springs that episodically erupt columns of water. They occur in few places on Earth. The highest concentration of geysers anywhere is at the Yellowstone Hotspot Volcano in northwestern Wyoming, USA.
Jet Geyser is a frequently active feature in the Fountain Group of Yellowstone’s Lower Geyser Basin. It has an irregularly-mounded geyserite buildup that is ~11 meters long and ranges from 3 to 7 meters across. Jet Geyser is a multivent feature. Eruptions involve vertical, angled, and subhorizontal spouting from various vents. Individual eruptions are short in duration, usually ranging from ~0.25 minutes to about one minute long. When active, Jet Geyser typically has eruptions every 6 to 10 minutes or so. During most eruptions of nearby Fountain Geyser, Jet has very frequent, short-duration eruptions every 1 to 4 minutes. In 1998, researchers measured Jet Geyser's water temperature at 34.4° Celsius (= 94° Fahrenheit), with a pH of 9.6 (= alkaline).
Jet Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUZjNc1F7vS3c8hsKD6-tOp
Clip 1 - Jet Geyser’s 12:32 PM eruption on 6 August 2025.
Clip 2 - Jet Geyser’s 12:33 to 12:34 PM eruption on 6 August 2025. (time stamp 0:28)
Clip 3 - Jet Geyser’s 11:48 AM eruption on 8 August 2025. (time stamp 0:38)
Clip 4 - Jet Geyser’s 11:50 AM eruption on 8 August 2025. (time stamp 0:57)
Clip 5 - Jet Geyser’s 11:53 AM eruption on 8 August 2025. (time stamp 1:12)
Clip 6 - Jet Geyser’s 11:55 AM eruption on 8 August 2025. (time stamp 1:23)
Clip 7 - Jet Geyser’s 4:29 PM eruption on 8 August 2025. (time stamp 1:43)
Clip 8 - Jet Geyser’s 4:36 to 4:37 PM eruption on 8 August 2025. (time stamp 2:09)
Clip 9 - Jet Geyser’s 4:38 PM eruption on 8 August 2025. (time stamp 2:34)
Clip 10 - Jet Geyser’s 4:39 to 4:40 PM eruption on 8 August 2025. (time stamp 3:01)
Clip 11 - Jet Geyser’s 4:44 PM eruption on 8 August 2025. (time stamp 3:27)
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Jet Geyser (2025)
Geysers are hot springs that episodically erupt columns of water. They occur in few places on Earth. The highest concentration of geysers anywhere is at the Yellowstone Hotspot Volcano in northwestern Wyoming, USA.
Jet Geyser is a frequently active feature in the Fountain Group of Yellowstone’s Lower Geyser Basin. It has an irregularly-mounded geyserite buildup that is ~11 meters long and ranges from 3 to 7 meters across. Jet Geyser is a multivent feature. Eruptions involve vertical, angled, and subhorizontal spouting from various vents. Individual eruptions are short in duration, usually ranging from ~0.25 minutes to about one minute long. When active, Jet Geyser typically has eruptions every 6 to 10 minutes or so. During most eruptions of nearby Fountain Geyser, Jet has very frequent, short-duration eruptions every 1 to 4 minutes. In 1998, researchers measured Jet Geyser's water temperature at 34.4° Celsius (= 94° Fahrenheit), with a pH of 9.6 (= alkaline).
Jet Geyser videos:
youtube.com/playlist?list=PL8dL6UmmXTBUZjNc1F7vS3c8hsKD6-tOp
Clip 1 - Jet Geyser’s 12:32 PM eruption on 6 August 2025.
Clip 2 - Jet Geyser’s 12:33 to 12:34 PM eruption on 6 August 2025. (time stamp 0:28)
Clip 3 - Jet Geyser’s 11:48 AM eruption on 8 August 2025. (time stamp 0:38)
Clip 4 - Jet Geyser’s 11:50 AM eruption on 8 August 2025. (time stamp 0:57)
Clip 5 - Jet Geyser’s 11:53 AM eruption on 8 August 2025. (time stamp 1:12)
Clip 6 - Jet Geyser’s 11:55 AM eruption on 8 August 2025. (time stamp 1:23)
Clip 7 - Jet Geyser’s 4:29 PM eruption on 8 August 2025. (time stamp 1:43)
Clip 8 - Jet Geyser’s 4:36 to 4:37 PM eruption on 8 August 2025. (time stamp 2:09)
Clip 9 - Jet Geyser’s 4:38 PM eruption on 8 August 2025. (time stamp 2:34)
Clip 10 - Jet Geyser’s 4:39 to 4:40 PM eruption on 8 August 2025. (time stamp 3:01)
Clip 11 - Jet Geyser’s 4:44 PM eruption on 8 August 2025. (time stamp 3:27)
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