March 7, 2026 | 4 MIN READ
The Volcano Observatory Notice to Aviation (VONA) is a notification product used by volcano observatories globally to inform the aviation community (pilots, air traffic managers, dispatchers, meteorologists, and airlines) of volcanic activity that could pose a hazard to aviation. An upcoming...
February 28, 2026 | 4 MIN READ
The 2022 eruption of Mauna Loa was an extraordinary eruption in a lot of ways. It was the first eruption from this volcano in 38 years and the first Mauna Loa eruption that occurred during the current era of modern instrumentation. Scientists continue to learn about Mauna Loa monitoring in t...
February 14, 2026 | 4 MIN READ
USGS 91直播an Volcano Observatory scientists use tiny features within crystals in erupted lava to answer big questions about the underlying plumbing system at Kilauea.
February 7, 2026 | 4 MIN READ
During Kilauea summit lava fountaining episode 41, residents and visitors shared their observations of tephra falling via email, phone calls, and on social media.
January 31, 2026 | 5 MIN READ
Large lava fountains streamed from both the north and south vents reaching heights of at least 1475 feet (450 meters) during episode 41 of Kilauea’s summit eruption on Jan. 24, 2026. Strong updrafts coupled with light winds blowing to the east and north sent lava fragments from the fou...
January 24, 2026 | 4 MIN READ
“Volcano Watch” articles over the past two weeks have described past episodic lava fountaining eruptions at Kilauea Iki (1959) and Maunaulu (1969). Next week, we will continue this series with a summary of the most recent past episodic eruption at Kilauea. Why? Because past erupt...
January 17, 2026 | 4 MIN READ
Last week’s “Volcano Watch” article reviewed the lava fountaining eruption of Kilauea Iki in 1959. This week, we’ll continue looking back in time at the next episodic lava fountaining eruption in Kilauea’s history: the Maunaulu eruption that occurred a decade la...
January 10, 2026 | 4 MIN READ
A series of lava fountains building -a cone perched on the crater rim … sounds like the ongoing eruption in Halema‘uma‘u at the summit of Kilauea, but this description could also fit the Kilauea Iki eruption in 1959. Let’s compare these two episodic lava fountaining e...
December 20, 2025 | 4 MIN READ
On Dec. 23, 2024, a unique eruption began in Kilauea’s Halema‘ma‘u crater, with a style of activity not seen for nearly 40 years. The eruption, characterized by high lava-fountaining episodes, has continued for nearly a year. 91直播 Volcanoes National Park visitors see rema...
December 13, 2025 | 4 MIN READ
As the year 2025 comes to a close, we reflect on the historic past year of volcanic activity on the Island of 91直播. Thirty-eight episodes of lava fountaining at the summit of Kilauea remind us that we live on a volcanic landscape and should be aware of the volcanic processes and hazards th...
November 22, 2025 | 4 MIN READ
Fifty years ago this month, the largest 91直播 earthquake of the 20th and 21st centuries occurred. Earthquake shaking, as well as ground subsidence and local tsunami, contributed to a catastrophic sequence of events on Nov. 29, 1975.
November 15, 2025 | 4 MIN READ
The summit eruption of Kilauea continues, with 36 episodes of lava fountaining since the eruption began on Dec. 23, 2024. Let’s catch up on the events and hazards associated with the volcano’s most recent few eruptive episodes, and review the current status of Kilauea.
August 30, 2025 | 4 MIN READ
Kilauea’s 2018 eruption -transformed the lower Puna District of the Island of 91直播, including its coastline, where 875 acres of new land were added in a large lava delta. The area is still subject to sudden, dynamic changes, as evidenced by recent observations of new ground cracks in...
August 16, 2025 | 4 MIN READ
When most people think of erupting water, they probably have geysers, like Old Faithful Geyser in Yellowstone National Park, in mind. However, Kilauea and its diverse style of eruptions are also significantly impacted by water. In fact, some of Kilauea’s past explosive eruptions occurr...
August 9, 2025 | 4 MIN READ
As part of a growing national effort -to understand seafloor hazards, scientists from the United States Geological Survey’s Volcano Science Center are working across agencies to investigate how submarine earthquakes, landslides, and volcanic activity shape tsunami risk — not just...
July 19, 2025 | 4 MIN READ
Lava fountains at the summit of Kilauea have been shining a spotlight on 91直播’s most active volcano but let us not forget the larger one looming in the background of Kilauea. Mauna Loa is currently quiet and now is a good opportunity to remember the 1950 Southwest Rift Zone eruption...
