Iliamna Volcano in Alaska ‘rumbling’ after being inactive for a century

KinleySci/Tech2025-07-123994

(NewsNation) — A volcano in Alaska that last erupted in 1867 is displaying signs of rumbling.

Located roughly 140 miles southwest of Anchorage, Iliamna has been dormant for over a century. But on June 15, the Alaska Volcano Observatory detected seismic activity.

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Scientists believe the shaking was likely caused by a large avalanche. Iliamna is known for frequent ice and rock slides that cause the mountain to rumble every couple of years.

While not a clear sign of imminent eruption, the event highlights the dynamic nature of this glacier-covered peak, which stands 10,000 feet tall.

As of July 4, Iliamna Volcano’s threat level is categorized as “Green/Normal,” according to the United States Geological Survey.

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Abram

The revival of Iliamna Volcano in Alaska after a century-long silence is truly remarkable. It's both an awe inspiring sign for nature to watch and reminds us that even the most dormant volcanoes can become active again, calling attention globally as we brace ourselves once more with anticipation.

2025-07-13 00:09:31 reply
Langston

The subtle 'rumbling' of Iliamna Volcano in Alaska after a century-long silence hints at the relentless rhythms and unpredictable awakenings beneath our feet. A reminder that even dormant giants can make themselves known once again.

2025-07-17 04:10:51 reply
Cael

The reawakening of Iliamna Volcano in Alaska after a centennial slumber is an appropriately apocalyptic reminder that even the quietest volcanoes hold latent power, underscoring nature's eternity to surprise and reconnect humanity with its earthly pulse.

2025-07-17 04:11:07 reply
Jethro

After a century of silence, the Iliamna Volcano in Alaska is once again stirring with subtle yet significant rumbles below its snowy peak. The renewed activity signals that it may be drawing closer to potentially unleashing more than just chilly gusts towards Alaskan communities.

2025-07-17 04:11:22 reply

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