[新聞] 阿拉斯加火山已滿足地震在內各項爆發指標

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1.媒體來源:

外媒    sciencealert

2.記者署名:

David Nield

3.完整新聞標題:

Earthquakes Under Alaskan Volcano Could Be Sign It's About to Erupt

阿拉斯加火山已滿足地震在內各項爆發指標

4.完整新聞內文:

Earthquakes Under Alaskan Volcano Could Be Sign It's About to Erupt
Nature
18 February 2025
By David Nield
Mount Spurr

The noise around Mount Spurr is increasing. (Matt Loewen/Alaska Volcano
Observatory/US Geological Survey)

Mount Spurr in Alaska – rising some 3,370 meters or 11,070 feet above sea
level – could be about to erupt, with the number of small and recent
earthquakes in the area now into the thousands.

阿拉斯加火山下的地震可能是其即將噴發的徵兆
自然
2025 年 2 月 18 日
經過大衛·尼爾德
斯珀爾山

斯珀爾山周圍的噪音越來越大。 （馬特洛文/阿拉斯加火山觀測站/美國地質調查局）
阿拉斯加的斯珀爾山海拔約 3,370 公尺或 11,070 英尺，可能即將噴發，該地區最近發
生的小地震次數已達數千次。

Volcano seismologist Matthew Haney, from the Alaska Volcano Observatory in
Anchorage, told Julia Jacobo at ABC News that the chances of an eruption now
stand at about 50-50. That's after a noticeable increase in activity over the
past 10 months.

As the volcano is only 130 kilometers or 80 miles west of Anchorage –
population 286,075 – there's a real chance of danger to life. The city could
be cloaked in a dust cloud if an eruption happens, as has happened in the
past.

安克雷奇阿拉斯加火山觀測站的火山地震學家馬修哈尼告訴美國廣播公司新聞台的朱莉婭
雅各布，現在火山爆發的可能性約為 50%。這是在過去 10 個月中活動量明顯增加的結果
。

由於這座火山距離安克拉治（人口 286,075）以西僅 130 公里或 80 英里，因此存在很
大的生命危險。如果發生火山爆發，這座城市可能會被塵埃雲籠罩，就像過去發生過的那
樣。

The video below shows the fallout of a 1953 eruption from the same volcano,
which shot an ash cloud more than 10,000 meters above sea level. There's
footage of people wiping ash from their vehicles and a snapshot of a headline
from the Anchorage Daily News that reads "City 'Digging Out'." No deaths were
associated with the eruption:

以下的影片展示了 1953 年同一座火山爆發的後果，當時噴出的火山灰雲高達海拔
10,000 多公尺。有影片顯示人們正在擦拭車輛上的灰燼，還有一張《安克雷奇每日新聞
》的頭條新聞快照，上面寫著「城市『挖掘』」。此次火山爆發並未造成人員死亡：

https://youtu.be/PsR8Y3azASI?si=CMsOsrvlzEaLdawA

"Unrest continues at Mount Spurr, with numerous small, shallow volcanic
earthquakes detected beneath the volcano," explains a recent volcano notice
from the United States Geological Survey (USGS).

"Earthquakes are being located under the north side of the Spurr summit vent
over the past day."

The image below shows the steady increase in earthquakes gathering in the
region as well as their distance from the volcano.

美國地質調查局（USGS）最近發布的火山通知解釋道：“斯珀爾山的騷動仍在繼續，火山
下方檢測到多次小型淺層火山地震。”

“過去一天，斯珀爾峰頂火山口北側下方發生了地震。”

下圖顯示了該地區地震的穩定增加以及它們與火山的距離。

https://imgur.com/SveActG.jpg

Volcanic activity
Increased activity around Mount Spurr. (Alaska Volcano Observatory)

斯珀爾山週邊活動增加。 （阿拉斯加火山觀測站）

The last eruption from Mount Spurr was actually three eruptions, which
happened across several months in 1992. The airport at Anchorage was forced
to close for 20 hours because of the cloud of dust and ash that enveloped the
city.

There was a single fatality reported – from a heart attack triggered by
shoveling ash fall – as well as a couple of millions of dollars of damage.
Then, as now, there were several months of activity build-up.

Mt Spurr 1992
1992 Mount Spurr eruption. (McGimsey, US Geological Survey, 1992)

斯珀爾山上次噴發其實是1992 年的三次噴發，持續了幾個月。由於塵土和火山灰籠罩整
個城市，安克雷奇機場被迫關閉20小時。


據報道，有一人因剷除落下的火山灰而引發心臟病發作而死亡，並造成了數百萬美元的損
失。當時，就像現在一樣，活動已經進行了幾個月的累積。

1992 年斯珀山
1992 年斯珀爾山爆發。 （McGimsey，美國地質調查局，1992 年）

Besides the small quakes, scientists have noticed the volcano swelling by 
about 6.4 centimeters (2.5 inches), according to Haney – another sign that
something is building up below the surface, ready to blow.

However, it's not quite time to take emergency measures yet. Similar
rumblings from Mount Spurr were recorded in 2004 and 2012, but weren't
followed by eruptions – and this could be another similar scenario.

Mount Spurr Ash
Ash fall deposit in Anchorage. The ash is from the August 1992 Crater Peak
eruption, Spurr Volcano. (McGimsey/Alaska Volcano Observatory)

哈尼表示，除了小地震外，科學家還注意到火山膨脹了約 6.4 公分（2.5 英吋），這是
地表下有某種物質正在積聚並隨時可能爆發的跡象。

然而，現在還未到採取緊急措施的時候。2004 年和2012 年，斯珀爾山也曾傳出類似的轟
隆聲，但隨後並未爆發——這可能是另一種類似的情況。

斯珀爾山灰燼
安克拉治的火山灰沉積物。火山灰是 1992 年 8 月斯珀爾火山 (Crater Peak) 噴發時產
生的。 （麥吉姆西/阿拉斯加火山觀測站）

In addition, the experts at the USGS say more seismic activity than we've
seen so far would be expected before an eruption, including around the
fumaroles or vents in the rock. Hopefully, plenty of advance warning will be
given if an eruption is about to happen.

"Based on previous eruptions, changes from current activity in the
earthquakes, ground deformation, summit lake, and fumaroles would be expected
if magma began to move closer to the surface," says the USGS.

"Therefore, it is very likely that if an eruption were to occur it would be
preceded by additional signals that would allow advance warning."

此外，美國地質調查局的專家表示，火山爆發前可能會出現比迄今為止看到的更多的地震
活動，包括岩石中的噴氣孔或通風口周圍。希望如果火山爆發即將發生，能夠提前發出足
夠的警告。

美國地質調查局表示： “根據先前的火山爆發情況，如果岩漿開始靠近地表，預計地震
、地面變形、山頂湖泊和噴氣孔等當前活動將發生變化。”

“因此，如果火山爆發，很有可能會先發出額外信號以提前發出預警。”

Volcanologists are now keeping a very close eye on Mount Spurr to try and get
a better idea of what's happening deep down in the rock. As we know from very
recent history, these eruptions can be monumental.

火山學家目前正在密切關注斯珀爾山，試圖更好地了解岩石深處發生的情況。從近代歷史
中我們知道，這些火山爆發的威力可能是巨大的。

5.完整新聞連結 (或短網址)不可用YAHOO、LINE、MSN等轉載媒體:

https://reurl.cc/jQKNQL

6.備註:

https://imgur.com/BW7yh1i.jpg

GG      預言中最後一任的教宗生重病，弘法大師空海退神也不管了。

https://disp.cc/b/Gossiping/hfu4

爆發機率過半，怕.jpg

https://youtu.be/OD10DsWk1NY?si=tiIt20N5LMFYXTzf



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