跟进：基拉韦厄火山第56次喷发期结束：熔岩喷泉高约200米、持续近6小时

夏威夷火山国家公园——位于美国夏威夷州夏威夷县的基拉韦厄火山于当地时间11月5日中午12时10分开始第56次喷发期的熔岩喷泉活动，当晚6时01分骤然停止，持续近6小时。美国地质调查局夏威夷火山观测站随后发布了本期喷发结束通报。

观测站的数据显示，本期喷泉最高达约200米，喷发柱升至海拔约5500米（据国家气象局雷达数据）；全期共喷出约600万立方米熔岩，平均喷出速率约为每秒200立方米，5日下午2时左右峰值约为每秒530立方米；到下午4时43分，喷泉高度已降至约100米。

所有喷口与熔岩流都局限在夏威夷火山国家公园内的哈雷茂茂火山口内。结束通报维持基拉韦厄火山警戒级别为「观察级」、航空颜色代码为橙色；观测站表示，本期结束后，未来数周内山顶再现喷泉活动的可能性不大。

基拉韦厄本轮喷发自2024年12月23日以来断续进行，喷泉期通常持续不到12小时、其间暂停两周以上。11月2日，火山口北侧喷口出现先兆性熔岩溢流，观测站将警戒级别上调至观察级，并预报第56次喷发期在11月4日至7日之间开始——本期如期而至；上一期（第55次）喷发发生在10月17日。

关联：跟进：基拉韦厄火山再现喷发活动，警戒级别升至观察级

（来源：美国地质调查局夏威夷火山观测站）

Follow-Up: Kilauea's Episode 56 Ends After Nearly Six Hours of Lava Fountaining, With Fountains Reaching About 200 Meters

Hawaii Volcanoes National Park — Kilauea volcano, in Hawaii County, Hawaii, began episode 56 of its ongoing summit eruption at 12:10 p.m. local time on November 5, and the lava fountaining stopped abruptly at 6:01 p.m. the same day, after nearly six hours. The U.S. Geological Survey's Hawaiian Volcano Observatory then issued its end-of-episode notice.

Observatory data show fountains reached about 200 meters (660 feet), with the eruption plume rising to about 5,500 meters (18,000 feet) above sea level, based on National Weather Service radar data. About 6 million cubic meters of lava erupted during the episode, at an average effusion rate of about 200 cubic meters per second and a peak of about 530 cubic meters per second around 2 p.m.; by 4:43 p.m. fountain heights had fallen to about 100 meters.

All vents and lava flows remained confined to Halemaumau crater within Hawaii Volcanoes National Park. The end-of-episode notice kept Kilauea at Volcano Alert Level WATCH with Aviation Color Code ORANGE, and the observatory said summit fountaining is unlikely in the next several weeks.

Kilauea has been erupting episodically since December 23, 2024; fountaining episodes generally last less than 12 hours and are separated by pauses of two weeks or more. Precursory lava overflow at the north vent on November 2 prompted the observatory to raise the alert level to WATCH and forecast episode 56 for November 4 to 7 — a window the episode met. The previous episode, number 55, took place on October 17.

(Source: U.S. Geological Survey Hawaiian Volcano Observatory)

来源：美国地质调查局夏威夷火山观测站

发布：GSM·美国（发布链接）

图片来源：图：基拉韦厄火山哈雷茂茂火山口内的熔岩喷泉（资料图，2025年3月20日第14次喷发期，与本轮属同一次喷发过程）。照片：美国地质调查局，公共领域，经 Wikimedia Commons。 / Photo: A lava fountain inside Kilauea's Halemaumau crater (file photo, episode 14 on March 20, 2025, part of the same ongoing eruption). Photo: U.S. Geological Survey, public domain, via Wikimedia Commons.

GSM Global · 本篇英文版 English edition of this story

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