News

Last month a "Volcano Watch" article discussed the bicentennial of the first visit of westerners to Kīlauea caldera, led by English missionary William...

A small lake near Norris Geyser Basin has seen some significant changes over the past few years, rising in level and changing color due to inputs of...

Understanding the eruptive history of volcanoes in Hawaii requires a tremendous amount of time and effort examining deposits. Typically, older...

What can trees tell us about Steamboat Geyser’s history? Why do Steamboat’s seismic eruption signals vary seasonally? Get up to speed on two newly...

It's been one year since Taʻū volcano in American Samoa started shaking residents of the Manuʻa Islands (Ofu-Olosega and Ta‘ū Islands). Fortunately...

Data from a major deployment of seismometers in 2020 is revealing new insights into the characteristics of the magma chamber beneath Yellowstone...

Ocean swells are constantly occurring across the Earth’s oceans. These swells interact with the ocean crust below, creating continuous ocean noise...

Long before the boardwalks, hotels, and roads, Yellowstone stood on the edge of the American wilderness. Its discovery and exploration by Euro...

Kīlauea’s activity from 2018 until now has been compared to cycles of summit collapse and refilling prior to 1924. However, Kīlauea also exhibited...

Based on geologic mapping and dating of minerals, we know that the Yellowstone caldera formed 631,000 years ago. But how did the caldera collapse...