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基拉韦厄火山第57次熔岩喷泉预报窗口定在11月17日至22日

2026-11-15 · 科技 · GSM News
基拉韦厄火山第57次熔岩喷泉预报窗口定在11月17日至22日

美国地质调查局夏威夷火山观测站11月14日更新说,基拉韦厄火山山顶喷发在第56次熔岩喷泉结束后继续暂停,山顶持续回胀,第57次熔岩喷泉的预报窗口定在11月17日至22日,火山警戒级别维持「咨询」级、航空颜色代码维持黄色。

第56次喷泉发生在11月5日中午12时10分至傍晚6时01分,只有北侧喷口喷发,熔岩喷泉最高约660英尺(约200米),喷发柱最高升到海拔约18,000英尺(约5,500米)。观测站估算那一次共喷出约800万立方码(约600万立方米)熔岩,平均喷发速率约每秒260立方码。

暂停期间山顶的回胀几乎没有停过:Uēkahuna 倾斜仪到11月14日早晨已累计恢复约11.9微弧度的膨胀倾斜,接近第56次喷泉时泄掉的17微弧度的大半。11月10日的直升机巡测在两个喷口内都看到翻滚的熔岩面,深度约130至165英尺(约40至50米);山顶二氧化硫排放量11月13日平均约每天3,000吨,信风正把火山气体吹向西南。

这轮山顶喷发自2024年12月23日以来在 Halemaʻumaʻu 火山口内间歇进行,每次喷泉一般持续不到12小时,间隔两周以上。观测站提醒,喷发活动目前都在夏威夷火山国家公园的封闭区内,但火山气体、火山碎屑与熔岩流仍是主要危害,观测站与国家公园及夏威夷县民防局保持着日常通报。

(来源:美国地质调查局)

Kilauea Episode 57 Lava Fountaining Forecast for November 17-22 as Summit Reinflates

The U.S. Geological Survey's Hawaiian Volcano Observatory said in its November 14 update that Kilauea's summit eruption remains paused after episode 56, the summit is reinflating, and the forecast window for episode 57 lava fountaining is November 17-22, with the volcano alert level at ADVISORY and the aviation color code at YELLOW.

Episode 56 fountained on November 5 between 12:10 p.m. and 6:01 p.m. from the north vent only, with maximum fountain heights of about 660 feet (200 meters) and an eruptive plume that rose as high as 18,000 feet (5,500 meters) above sea level. The observatory estimates about 8 million cubic yards (6 million cubic meters) of lava erupted, at an average rate of 260 cubic yards per second.

During the pause, summit inflation has been nearly continuous: by the morning of November 14 the Uekahuna tiltmeter had recovered about 11.9 microradians of inflationary tilt since episode 56 ended, a large share of the 17 microradians of deflation recorded during the fountaining. A helicopter overflight on November 10 saw a roiling lava surface in both vents about 130 to 165 feet (40 to 50 meters) deep, and the summit sulfur dioxide emission rate averaged about 3,000 tonnes per day on November 13, with trade winds carrying volcanic gases to the southwest.

The summit eruption has proceeded episodically inside Halema'uma'u crater since December 23, 2024, with fountaining episodes generally lasting less than 12 hours and separated by pauses of two or more weeks. The observatory notes that activity remains inside a closed area of Hawaii Volcanoes National Park, but volcanic gas, tephra and lava flows remain the primary hazards, and it stays in contact with the park and Hawaii County Civil Defense on eruptive hazards.

(Source: U.S. Geological Survey)

来源:美国地质调查局

发布:GSM·美国(发布链接)

图片来源:图片来源:美国地质调查局,2026年11月13日夏威夷火山观测站地质学家在基拉韦厄山顶新火山碎屑锥上测量高程变化(N. Deligne 摄,公共领域) | Image: U.S. Geological Survey, a Hawaiian Volcano Observatory geologist surveying elevation across the new pu'u at Kilauea's summit, November 13, 2026, photo by N. Deligne, public domain

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