Smoking is bad for you.
And the idiots walk back closer to have a look. What if it went up again or didn't they consider that?
Had to look that one up.
From the USGS website:
The use of the word "signal" is a problem. It suggests that hearing it means we would know what it was related to and what would inevitably happen next, which is misleading.Mysterious Signal Preceded The Most Powerful Eruption of Modern Times
In January 2022, the most powerful explosion ever recorded with modern instruments rocked the South Pacific. Now, scientists have identified a mysterious signal that preceded the thunderous event.
A satellite view of the eruption at Hunga Tonga-Hunga Ha‘apai on January 15, 2022. (NASA)
Hunga Tonga-Hunga Ha'apai, an underwater volcano in the Tongan archipelago, erupted violently on January 15, 2022. According to a new study though, two faraway monitoring stations recorded a seismic wave some 15 minutes earlier.
The authors of the study describe the wave as a "seismic precursor" for the subsequent eruption, both of which were triggered by a collapse in a weak section of oceanic crust below the volcano's caldera wall.
This fracture let both seawater and magma gush into the zone between the seafloor and the volcano's underground magma chamber, the study's authors explain, sparking an explosive eruption.
The fracture also caused a Rayleigh wave, a type of acoustic wave that moves along a solid surface – in this case, Earth's surface. The wave was detected 15 minutes before the main volcanic eruption on January 15, 2022, from about 750 kilometers (466 miles) away.
The volcano rumbled to life with more modest convulsions in December 2021 and early January 2022, followed by a bigger eruption on January 14 – and then a record-shattering outburst the next day.
The January 15 eruption had a Volcanic Explosivity Index (VEI) rating of at least VEI-5, roughly on par with historic eruptions like Mount Vesuvius in 79 CE and Mount St. Helens in 1980.
It released 10 cubic kilometers (2.4 cubic miles) of volcanic material and sent 146 million metric tons of water vapor into the stratosphere – enough to fill 58,000 Olympic swimming pools.
The explosion, equivalent to hundreds of atomic bombs, also caused the fastest underwater currents known to science.
https://www.sciencealert.com/mysterious-signal-preceded-the-most-powerful-eruption-of-modern-times
maximus otter
No naked links, please.
I always look for news from more reputable science sites. Here is Science Alert instead:‘Mystery Volcano’ that Lowered Global Temperatures Nearly 2 degrees Fahrenheit in 1831 Identified
A ‘mystery volcano’ that erupted in 1831 and significantly cooled Earth’s climate has finally been identified as Zavaritskii on Simushir Island, part of the Kuril Islands archipelago between Russia and Japan.
This eruption was one of the most powerful of the 19th century, releasing an enormous amount of sulfur dioxide into the stratosphere. The Earth-caused emissions resulted in a decrease of approximately one degree Celsius (1.8 degrees Fahrenheit) in the annual average temperatures of the Northern Hemisphere.
The challenge in locating the volcano was due to its remote location.
While the year of this historic eruption was known, the volcano’s location was not. Researchers recently solved that puzzle by sampling ice cores in Greenland, peering back in time through the cores’ layers to examine sulfur isotopes, grains of ash and tiny volcanic glass shards deposited between 1831 and 1834.
Using geochemistry, radioactive dating and computer modeling to map particles’ trajectories, the scientists linked the 1831 eruption to an island volcano in the northwest Pacific Ocean.
To find the volcano, researchers compared the chemistry of microscopic shards of ash extracted from ice cores drilled in Greenland with samples from the Zavaritskii caldera. They determined it was a perfect match.
https://legalinsurrection.com/2025/...arly-2-degrees-fahrenheit-in-1831-identified/
maximus otter
That was my point. I would not link to a trash site, even to point out the trash. It possibly gives them revenue and SEO boosts.
