A Massive Underwater Volcano in the Pacific Is Showing Signs of Eruption A huge submarine volcano beneath the Pacific Ocean is displaying increased seismic activity, gas release, and ground swelling—signals that scientists monitor closely for potential eruption. Most underwater eruptions pose little immediate threat to humans, but large events can affect ocean ecosystems, shipping routes, and even trigger tsunamis under rare conditions. Important Details: • Located deep beneath the Pacific Ocean

Meet Valentine, a submarine volcanologist aboard OceanXplorer from our latest mission in Mayotte, who’s mapping the seafloor and decoding how these underwater volcanoes reshape entire ecosystems. Imagine lava erupting underwater—hitting seawater that’s 1,000°C cooler. That’s the kind of deep-sea science we're here to witness. Fun fact: Did you know that most volcanic activity on Earth is underwater? Few ever get to see it up close. But we’re changing that. | OceanX