Largest volcano eruption in 140 years sent exceptional pressure waves around Earth
Tonga\u0027s January eruption created atmospheric reactions \u0027unprecedented in the modern geophysical record\u0027
Photo by NOAANine hours after the explosion, booms were heard as far off as Alaska — 10,000 kilometres away — compelling some to believe there was a link to the eruption. But the scientists believe those booms could not have originated in Hunga. “I heard the sounds,” said co-author David Fee at the University of Alaska Fairbanks Geophysical Institute in the release, “but at the time definitely did not think it was from a volcanic eruption in the South Pacific.”
Advertisement 4This advertisement has not loaded yet, but your article continues below.Article contentRobin Matoza“While there’s still much to learn, it’s clear that standard sound models cannot explain how audible sounds propagated over such extreme distances. We interpreted that they were generated somewhere along the path by nonlinear effects,” Matoza said.Read more: TheStarPhoenix.com »
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Giant Tonga Volcanic Eruption Was as Powerful as Krakatau in 1883, Scientists RevealAn underwater volcano erupted in January near the Pacific nation of Tonga and sent massive pressure waves racing through Earth's atmosphere, where they lapped the planet several times.
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The Hunga eruption seen from the GOES-17 satellite of the National Oceanic and Atmospheric Administration.ionosphere – a dense layer of electrically charged particles that lies about 35 to 620 miles (60 to 1,000 km) above the planet's surface.May 18, 2020 Forty years ago today, iconic Mount St.We check over 250 million products every day for the best prices Anycubic Photon M3: Set up Previous Anycubic printers have been an absolute breeze to assemble, and the Anycubic Photon M3 is no different.
Photo by NOAA Nine hours after the explosion, booms were heard as far off as Alaska — 10,000 kilometres away — compelling some to believe there was a link to the eruption. But the scientists believe those booms could not have originated in Hunga. Based on historical data, the 1883 Krakatau eruption generated Lamb waves that circled the Earth the same number of times, the researchers reported. “I heard the sounds,” said co-author David Fee at the University of Alaska Fairbanks Geophysical Institute in the release, “but at the time definitely did not think it was from a volcanic eruption in the South Pacific. history.” Advertisement 4 This advertisement has not loaded yet, but your article continues below. "We were able to simulate the Hunga Tonga Lamb wave just two days after the event," and now, the new Science study has provided more detail as to how these waves propagated, using various geophysical measurements, Žagar told Live Science in an email. Article content Robin Matoza “While there’s still much to learn, it’s clear that standard sound models cannot explain how audible sounds propagated over such extreme distances. The whole process took us about 20 minutes from unpacking of the printer through to the final installation of the reservoir.
We interpreted that they were generated somewhere along the path by nonlinear effects,” Matoza said. The timing of the Lamb waves and"forerunner" tsunamis seemed to coincide, they found. Courtesy of USGS. “We have more than a century of advances in instrumentation technology and global sensor density,” he said. “So the 2022 Hunga event provided an unparalleled global dataset for an explosion event of this size. In addition to huge Lamb waves and fast-moving tsunamis, the Hunga eruption also produced incredibly long-range sound waves and infrasound waves – meaning acoustic waves too low in frequency to be heard by humans, Matoza and his colleagues reported.” More On This Topic Undersea volcano erupts off Tonga, tsunami warning issued “The atmospheric waves were recorded globally across a wide frequency band, and by studying this remarkable dataset we will better understand acoustic and atmospheric wave generation, propagation and recording,” Fee said. Leading up to the eruption, a new system of seismographs, which had recently gone into operation at the University of Washington, began recording a series of earthquakes beginning on March 20 that intensified over the next week. “This has implications for monitoring nuclear explosions, volcanoes, earthquakes and a variety of other phenomena,” he continued. Remarkably, audible sounds, consisting of short, repeated"booms", were reported all across Alaska, more than 6,200 miles (10,000 km) from the Hunga eruption. Anycubic Photon M3: Specs & Features Adequately sized print bed Resolution is excellent Included software could be better Given that this is the entry level printer in the M3 series from Anycubic, you’d think that it would be the bare minimum of features, but that’s not the case.
“Our hope is that we will be better able to monitor volcanic eruptions and tsunamis by understanding the atmospheric waves from this eruption.” Share this article in your social network Share this Story: . Shortly after 8:30 a.