Kīlauea is always erupting in the same place.
Reality: activity can shift between Halemaʻumaʻu, the East Rift Zone and the Southwest Rift Zone.
Latest activity and alert level
Check the live status hub
Kīlauea can change rapidly between pauses, lava fountaining and renewed eruptive activity. View the Volcoholics volcano directory for the latest verified official position from USGS Hawaiian Volcano Observatory.
View latest Kīlauea status →Island of Hawaiʻi · Fire from the summit
Kīlauea
One of Earth’s most active shield volcanoes—where Halemaʻumaʻu, vast rift zones and repeated lava-fountain episodes continually reshape Hawaiʻi’s youngest landscape.
Scroll into the caldera ↓
Chapter one
Hawaiʻi’s living volcano
Kīlauea is a broad basaltic shield volcano built by repeated eruptions from its summit and two major rift zones. Its low profile hides an enormous volcanic system extending from the summit caldera to the sea.
Halemaʻumaʻu sits within Kaluapele, the summit caldera. For generations it has been one of the most culturally and scientifically significant volcanic places in Hawaiʻi. Modern eruptions have repeatedly transformed the crater through collapse, lava lakes, vents, fountains and rapid resurfacing.
Kīlauea’s basaltic magma is fluid compared with the stickier magma of many explosive stratovolcanoes. That allows spectacular lava fountains and long lava flows—but it does not make the volcano harmless. Gas, tephra, ground cracking, earthquakes and rapidly advancing lava have all affected communities and visitors.
Kīlauea can erupt in repeated fountain cycles separated by pauses, with pressure building, lava and gas being released, and the shallow summit system recharging between eruptive phases.
Kīlauea quick facts
- Volcano type
- Basaltic shield volcano
- Summit elevation
- 1,247 metres
- Main eruptive zones
- Summit and East Rift Zone
- Location
- Island of Hawaiʻi, USA
- Summit region
- Kaluapele and Halemaʻumaʻu
- Official observatory
- USGS Hawaiian Volcano Observatory
Activity and behaviour
A volcano defined by frequent change
Evergreen profile
How Kīlauea behaves
Kīlauea alternates between summit eruptions, rift-zone intrusions, lava fountaining, fissure eruptions and pauses. The location, duration and style of activity can shift quickly.
Check the latest verified status →Typical styleBasaltic lava eruptionsFluid lava, fountains and fissures
Main settingsSummit and rift zonesActivity can migrate through the system
Episode cyclesPressure and rechargePauses may separate eruptive bursts
Main hazardsLava, gas and collapseHazards vary by eruption location
Official sourceUSGS HVOAlert, aviation and eruption information
Signature chapter
The rhythm of Halemaʻumaʻu
Kīlauea can produce repeated lava-fountain episodes separated by pauses, with pressure, eruption, deflation and recharge shaping the rhythm.
During pauses, the shallow summit system reinflates and glow may remain visible at the vents. As pressure recovers, low-level overflows or dome fountains can appear before the onset of a larger episode.
Eruption cycles explained
Why the fountains stop—and return
An episode is one pulse within a longer eruption. The vent system does not shut down permanently when the fountains stop; it begins another pressure-and-recharge cycle.
HVO follows tilt, seismicity, gas, vent glow and lava behaviour to understand where Kīlauea sits within that cycle. The timing and strength of a future episode cannot be read from one signal alone.
01InflationMagma pressure builds beneath the summit.
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02PrecursorsGlow, overflow or low fountains may increase.
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03FountainingGas-rich magma discharges rapidly through the vents.
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04DeflationThe summit contracts as lava and gas escape.
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05PauseThe fountains stop and recharge begins again.
Chapter three
How Kīlauea works
Hotspot magma supplyMagma rises beneath the Hawaiian chain as the Pacific Plate moves over a deep mantle source.
Shallow summit storageMagma accumulates beneath Kaluapele and Halemaʻumaʻu before eruptions or intrusions.
Gas drives fountainsRapid expansion of dissolved gases accelerates lava through the summit vents.
Rift-zone pathwaysMagma can move laterally away from the summit through the East and Southwest Rift Zones.
Deformation records pressureTilt and GPS reveal inflation and deflation as the magma system changes.
Chapter four
Summit and rift zones
Kīlauea does not erupt only at its summit. Two major rift zones carry magma away from the caldera through long bands of fractures and vents.
The East Rift Zone extends towards the island’s eastern coast and hosted the long-lived Puʻuʻōʻō eruption from 1983 to 2018. In 2018, magma drained from the summit and erupted through lower-rift fissures in residential areas, destroying more than 700 structures.
The Southwest Rift Zone has also produced important eruptions and remains part of the active volcanic system. No significant activity is currently reported along either rift zone, but HVO monitors both continuously.
Chapter five
One volcano, many instruments
The USGS Hawaiian Volcano Observatory combines dense ground networks with cameras, gas measurements and satellite data. No single instrument predicts an eruption; the strength comes from reading every signal together.
Tilt and GPSRecord rapid summit inflation, deflation and broader rift-zone movement.
Seismic networkTracks earthquakes, tremor and changing magma pathways.
Gas monitoringSO₂ measurements help describe magma supply and eruptive output.
Cameras and satellitesFollow fountains, thermal anomalies, vent glow and lava emplacement.
A volcano through time
Kīlauea eruption timeline
1790
Deadly explosive eruption
An explosive summit eruption produced pyroclastic surges and remains the deadliest known volcanic event in the present-day United States.
1924
Halemaʻumaʻu explosions
Groundwater interacted with the draining summit system, producing weeks of explosive activity.
1959
Kīlauea Iki lava fountains
Exceptionally high fountains built Puʻupuaʻi and created a deep lava lake in Kīlauea Iki crater.
1983–2018
Puʻuʻōʻō eruption
A 35-year East Rift Zone eruption repeatedly sent lava towards the sea and transformed large areas of the district.
2018
Lower East Rift Zone crisis
Summit collapse and lower-rift fissures destroyed neighbourhoods and dramatically enlarged Kaluapele.
2020–23
Repeated summit eruptions
Several eruptions filled parts of Halemaʻumaʻu with new lava following the 2018 collapse.
2024–26
Halemaʻumaʻu episode sequence
The summit eruptive activity began in December 2024 and has produced dozens of discrete lava-fountain episodes separated by pauses, deflation and renewed summit inflation.
Hazards
The hazards that matter most
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Lava flows
Fluid basalt can travel through established channels or new fissures and may threaten roads, infrastructure and communities during rift-zone eruptions.
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Volcanic gas and vog
SO₂ forms vog downwind, affecting air quality across Hawaiʻi even when lava remains confined within the summit.
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Tephra and glass
Lava fountains produce Pele’s hair, Pele’s tears and other fragments that can be carried away from the vents.
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Earthquakes and ground cracking
Magma movement and flank deformation can generate earthquakes, fractures and sudden changes in access conditions.
Myths and reality
Kīlauea myths, separated from the science
Shield volcanoes cannot erupt explosively.
Reality: Kīlauea has produced major explosive eruptions, including the deadly events of 1790 and the summit explosions of 1924.
Every lava fountain threatens communities.
Reality: summit fountains may remain confined to the closed crater area, while rift-zone fissures create a very different hazard picture.
A pause means the eruption is over.
Reality: during an episodic eruption, a pause may simply mark the recharge interval before another fountain episode.
The Volcoholics Verdict
A volcano that never stops teaching
“Kīlauea is captivating because its lava makes geology visible in real time. Yet every glowing fountain sits within a much larger system capable of summit collapse, destructive rift eruptions and profound change across the island.”
This editorial summary is based on the scientific information presented above. It does not replace official monitoring or public-safety guidance from USGS HVO, Hawaiʻi County Civil Defense or Hawaiʻi Volcanoes National Park.
Frequently asked questions
Kīlauea explained
How is Kīlauea monitored?
HVO combines seismicity, deformation, gas, webcams, thermal imagery, satellite data and field observations to track changes at the summit and along the rift zones.
Where can I find Kīlauea's latest official status?
Use the Volcoholics volcano directory for the latest verified summary, then follow USGS Hawaiian Volcano Observatory for authoritative alert, aviation and eruption information.
Will another episode occur?
USGS HVO reports that renewed summit inflation and vent glow indicate another lava-fountain episode is likely, though timing remains uncertain.
Where is the recent eruptive activity?
The recent eruptive activity is confined to vents inside Halemaʻumaʻu within Kaluapele at Kīlauea’s summit.
What is Halemaʻumaʻu?
It is the pit crater and active vent area within Kīlauea’s summit caldera.
Why are the eruptions episodic?
The shallow summit magma system repeatedly pressurises, erupts and deflates before beginning another recharge cycle.
Who monitors Kīlauea?
The USGS Hawaiian Volcano Observatory operates the scientific monitoring networks.
Can visitors see the eruption?
There is no active fountaining during pauses. Access and visibility depend on Hawaiʻi Volcanoes National Park rules, weather and official closures.
What is vog?
Vog is volcanic air pollution formed when sulphur dioxide reacts in the atmosphere.
Could Kīlauea erupt outside the summit?
Yes. Its East and Southwest Rift Zones have produced many eruptions, including the destructive 2018 lower-rift eruption.
How tall were eruptive episode fountains?
The north vent reached about 500 feet, or 150 metres, above ground level.
Where are official updates published?
Use the USGS HVO Kīlauea updates, webcams and volcano-notification pages.
About this profile
Official science, made readable
Volcoholics Atlas chapters use official observatory publications, civil-protection information and authoritative eruption records. Editorial passages explain why the observations matter while keeping official monitoring and safety guidance clearly separate.
USGS Hawaiian Volcano ObservatoryOfficial daily updates, alert levels, monitoring data and eruption chronology.
Hawaiʻi Volcanoes National ParkOfficial visitor access, closures and landscape information.
Smithsonian Global Volcanism ProgramGeological history and international eruption record.