Scientists report identifying 73 previously unknown volcanoes hidden across the ocean floor. The discovery comes from research focused on mapping and studying underwater geological features. The outlets describe the volcanoes as part of the seafloor landscape that had not been documented before, indicating that the extent of oceanic volcanic activity may be larger than previously recorded. The reports also note that some of these volcanoes could be capable of eruption, implying that volcanic risk may exist even in areas that have not been closely monitored. While the coverage emphasizes the number and hidden nature of the volcanoes, it does not provide detailed location-by-location findings in the text provided here. Overall, the articles agree on the central points: the count of newly discovered underwater volcanoes is 73, they were previously unknown, and some may have the potential to erupt. Further observation and scientific analysis are implied to be necessary to better understand their current activity levels and associated hazards.