Aug 2, 2022 · When the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15, it sent a tsunami racing around the world and set off a sonic boom that circled the globe twice. The underwater eruption in the South Pacific Ocean also blasted an enormous plume of water vapor into Earth’s stratosphere – enough to fill more than 58,000 Olympic-size swimming pools.

Jan 29, 2025 · The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is displaying behavior that indicates an eruption is imminent in 2025, William Chadwick, ...

Feb 1, 2025 · The volcano "is the most active in the Pacific Northwest" but little known by the public because even its tip is almost a mile under water. But scientists know it well.

Jan 6, 2025 · Axial Seamount sits under the Pacific Ocean about 300 miles from the U.S. coast. Since 1997, scientists have kept a careful eye on it using instruments that measure pressure on the ocean floor. Data shows that the volcano has been swelling, with changing rates that hint at an upcoming eruption.

Scientists estimate that there are tens of thousands of active and dormant volcanoes on Earth, and thousands more extinct volcanoes. Water and volcanoes are closely linked. Water plays significant roles throughout the "life cycle" of magma: from its production deep within the Earth, to its fiery escape at a volcano, to its final cooling.

Sep 8, 2024 · On 15 January 2022, the underwater volcano Hunga Tonga–Hunga Ha'apai erupted, unleashing a powerful tsunami that destroyed homes and caused four deaths throughout Tonga.

Jan 26, 2024 · A little over two years ago, the most powerful underwater volcano ever recorded erupted off the coast of the tiny island nation of Tonga in the Pacific Ocean, about 2,000 kilometres from New...

Jan 28, 2025 · The volcano, about 300 miles off the coast of Oregon and a mile beneath the ocean’s surface, is among the most monitored in the world and has been under observation since 1997. ... When the volcano erupts, it likely won’t be cataclysmic — or even apparent to anyone above water. Since Axial Seamount is shaped from thin layers of lava, an ...

Dec 20, 2023 · The eruption of the Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022, produced the largest underwater explosion ever recorded by modern scientific instruments, blasting an enormous amount of water and volcanic gases higher than any other eruption in …

Apr 19, 2023 · In 2005, the nuclear-powered USS San Francisco collided with an underwater volcano, or seamount, at top speed, killing a crew member and injuring most aboard. It happened again in 2021 when the USS Connecticut struck a seamount in …