this post was submitted on 11 Jul 2025
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An Alaskan volcano that has been inactive for more than 100 years is showing signs of rumbling, according to scientists.

However, there's a chance that the activity could be signs of a pending avalanche, rather than a volcanic eruption, NASA said.

The Iliamna volcano, located near the Cook Inlet in southern Alaska, last erupted in 1867, but would still rumble every few years due to avalanches large enough to register on nearby seismic and infrasound instruments, according to NASA.

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[–] [email protected] 6 points 1 day ago

Still an active volcano,.if it was dormant for just a hundred years:

An active volcano is a volcano that is currently erupting, or has the potential to erupt in the future.[1] Conventionally it is applied to any that have erupted during the Holocene (the current geologic epoch that began approximately 11,700 years ago).

https://en.m.wikipedia.org/wiki/Active_volcano

[–] [email protected] 4 points 1 day ago

100 years is the blink of an eye on the geologic scale. It is in no way remarkable or unusual for a volcano to go that long without any activity.

[–] [email protected] 5 points 1 day ago

I'd prefer a giant asteroid, but an apocalyptic volcanic eruption would probably do just fine too.