Historic Noteworthy Events at Kilauea Volcano
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- December 2024 Eruption - lava returns to Halemaumau crater at the summit
- September 2024 Eruption - brief after dark eruption in remote HVNP area.
- June 2024 Eruption - A new eruption began north of the Koa'e fault system and Hilina Pali Road
- September 2023 Eruption - Fountains of lava return to the summit crater
- June 2023 Eruption - Lava returned to Halemaumau crater
- January - March 2023 Eruption - Eruption activity resumed within Halemaumau
- 2021-2022 Eruption - additional summit activity in Halemaumau
- 2020-2021 Eruption - Lava returned to Halemaumau
- 2019 Eruption - Lava Lake Developed in Halemaumau Crater
- 2018 Eruption - Significant event in the East Rift Zone
- Previous Historic Eruptions
This section will be updated accordingly.
Eruption returns in Halemaumau Crater
December 2024 Eruption
Episode I
The eruption within Halemaumau Crater (view USGS Eruption GIF here) began at approximately 2:20 a.m. on Monday, December 23, 2024, and vents erupted on the floor of the southwest part of the summit caldera.
At 4:30 a.m., lava fountains were observeEd with heights up to 80 meters (262 feet). Molten material, including lava bombs, was being ejected from the vents on the caldera floor up onto the west caldera rim, within the closed area of Hawaiʻi Volcanoes National Park. The volcanic gas and ejecta hazards west of the erupting vents stress the hazardous nature of this closed area of Kīlauea's summit. By 5:30 a.m., lava covered an estimated area of 400 acres of the caldera floor.
Eruptive activity is currently confined to the summit region. No significant changes have been observed in the rift zones.
Around 3 p.m. on the eruption day, the summit's tilt stopped showing deflation, and seismic tremors began decreasing. By 3:30 p.m., lava fountains were barely visible. By 4 p.m., the fountaining had stopped, and seismic tremor was close to background levels. Visible volcanic gas emissions have also decreased significantly. These observations indicate that the eruption has slowed considerably and appears to be entering a pause.
Episode II
The eruption at Kīlauea volcano that began on Monday, December 23, continued the morning of December 25, 2024. The eruption had been relatively stable over the past day, following the resumption of activity that occurred yesterday morning. Vigorous lava fountains remain active in the western portion of Halema‘uma‘u crater, sending lava flows across the crater floor. Eruptive activity remains confined to Halemaʻumaʻu and the downdropped block within the caldera and may fluctuate in vigor over the coming days.
Episode 2 of the December 2024 summit eruption of Kīlauea paused just before 11:00 a.m. on Christmas Day.
The vigorous fountaining from vents in the southwest corner of Halemaʻmaʻu crater rapidly died down over a few minutes just before 11:00 a.m. Lava began draining back into the vent at 11:00 a.m. at nearly the same time summit tiltmeters began recording a change from deflation to inflation. Seismic tremors also decreased markedly at the same time. The pattern was similar but more abrupt than the pause onset on Monday, December 23, between 3 and 4 p.m.
Episode 2 lasted a little over 24 hours, about twice the duration of the first eruptive episode. Prior summit eruptions have lasted days to weeks, and there is a high probability that this eruption will resume if the summit repressurizes in the coming days.
Episode III
Around 6 p.m. on December 27, 2024, the eruption transitioned from low level lava flows to the onset of more vigorous fountaining.
Lava began erupting from vents around 8 a.m. yesterday morning (December 26) marking the beginning of the third phase of the ongoing summit eruption. Sluggish lava flows continued to erupt from the northern vents for the next day and a half. This was much longer than the 3-4 hours of sluggish eruption that preceded the fountaining of the second episode. Current fountain is occurring bursts up to 30-45 ft (10-15 m) high from the two most northern vents. If fountaining continues, it is possible that the fountain heights will increase as more gas-rich lava erupted. It is not possible to estimate how high the fountains may get or how long the fountaining will last, but prior episodes have produced fountains over 200 feet high (70 m) that last up to 24 hours.
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Eruption in remote part of HVNP
September 2024 Eruption
Kilauea volcano erupted briefly just west of Napau Crater on the middle East Rift Zone. This eruption likely occurred between approximately 9:00 and 10:00 p.m. HST on Sunday 15, 2024, in a remote and closed area of Hawaiʻi Volcanoes National Park. Chain of Craters Road, which is closed, is located downslope and downwind of the new fissures.
On September 16, 2024 the eruption resumed in the middle East Rift Zone at about 6 p.m. HST. Activity continued overnight, but generally decreased.
On September 17, 2024, approximately 4 a.m. HST, activity increased and during a morning overflight at approximately 8 a.m. HST, HVO geologists observed that new vents had opened in Nāpau Crater. In total, the fissure system has stretched over 1.6 kilometers (1.0 miles) of the East Rift Zone, with lava flows now covering 18 hectares (44 acres).
On September 18, 2024, during the USGS Hawaiian Volcano Observatory morning monitoring overflight, geologists observed that the activity had greatly decreased. Only weak low fountaining within a tiny lava pond was observed at one vent.
At 3:15 p.m. HST, on September 18, 2024, new eruptive fissures opened west of Napau Crater. A monitoring camera deployed by HVO field crews with permission from Hawaiʻi Volcanoes National Park recorded “lava falls” cascading down the northwest walls of Napau Crater. Vigorous activity continued and by the morning of September 19, about 2/3 of Napau Crater floor had been covered with new lava.
As of 10 a.m. HST on September 20, 2024, eruptive activity had paused.
Eruption resumes in HVNP
June 2024 Eruption
A new Kilauea eruption began at approximately 12:30 a.m. HST on Monday, June 3, likely about a mile (1-2 km) south of Kilauea caldera and north of the Koa'e fault system and Hilina Pali Road, within Hawai'i Volcanoes National Park.
Glow was visible in webcam imagery, indicating that lava was erupting from fissures. The most recent eruption in this region was during December 1974, which lasted only about 6 hours.
The eruption took place in a remote location within the national park, was low in eruptive volume, and did not pose an immediate threat to human life or critical infrastructure.
The eruption occurred approximately 3 km (2 miles) southwest of Kaluapele (Kilauea caldera) within Hawai'i Volcanoes National Park. That eruption lasted less than 9 hours and generated small lava flows that covered about one third of a square mile (one half of a square kilometer).
The eruption that began southwest of Kīlauea’s summit at approximately 12:30 a.m. HST this morning, June 3, has ended.
Eruption temporarily resumes in Halemaumau Crater
September 2023 Eruption
At approximately 3:15 p.m. HST on September 10, 2023, the USGS Hawaiian Volcano Observatory observed eruptive activity in Kilauea summit webcam images and from field reports indicating that an eruption has commenced within Halemaʻumaʻu crater and on the down-dropped block to the east in Kīlauea's summit caldera, within Hawai‘i Volcanoes National Park. The eruption was preceded by a period of strong seismicity and rapid uplift of the summit.
The eruption that began at the Kilauea summit on September 10, 2023, has ended. Lava supply to the vents on the downdropped block in Kilauea's summit caldera ceased on September 16, 2023, based on visual and geophysical observations.
We will continue to post updates above, on this page as eruption(s) continue.
Eruption resumes again in Halemaumau Crater
June 2023 Eruption
At approximately 4:44 a.m. HST on June 7, 2023, the USGS Hawaiian Volcano Observatory detected glow in Kilauea summit webcam images indicating that an eruption had commenced within Halema'uma'u crater in Kilauea's summit caldera, within Hawai'i Volcanoes National Park.
This summit eruption event at Kīlauea volcano ended on June 19, 2023.
Kilauea June 2023 Eruption Photos
Eruption resumes in Halemaumau Crater
January 2023 - March 2023 Eruption
Kilauea volcano was previously erupting. At approximately 4:34 p.m. HST on January 5, 2023, the USGS Hawaiian Volcano Observatory detected a glow in Kilauea's summit webcam images, indicating that the eruption had resumed within Halemaʻumaʻu crater in Kilauea's summit caldera, within Hawai‘i Volcanoes National Park.
This eruption concluded on March 7, 2023.
Kilauea Early 2023 Eruption Photos
More activity in Halemaumau Crater
September 2021 - December 2022 Eruption
The 2021-2022 eruption within Halemaumau Crater started about 20 minutes after 3 p.m. Wednesday - September 29, 2021; all lava was confined within the crater. The eruption came after a day of increased earthquake activity at the volcano and summit.
The eruption from September 2021 - December 2022 was confined to Halemaumau crater, within Hawaii Volcanoes National Park. As of December 9, 2022, Kilauea was no longer erupting. Lava supply to the Halemaʻumaʻu lava lake ceased based on lava lake levels and the behavior of the crater floor.
At the time of the last eruption, HVO did not see any indication of activity migrating elsewhere on Kilauea volcano and expects the eruption to remain confined to the summit region.
Kilauea summit eruptions over the past 200 years have lasted from less than a day to more than a decade.
The eruption slowed in early December 2022, coinciding, but likely unrelated to, the eruption of neighboring Mauna Loa. As of approximately December 9, 2022, Kilauea was no longer erupting.
Lava returns to Halemaumau Crater
December 2020 - May 2021 Eruption
After the huge changes that occurred with the 2018 eruption and subsequent summit collapse, some had speculated that Kilauea would not erupt for a significant period of time. Pele had other plans, however.
At approximately 9:30 p.m. HST on Sunday - December 20, 2020, the USGS Hawaiian Volcano Observatory (HVO) detected a new glow within the Halemaumau crater at the summit of Kilauea Volcano.
Within Halemaumau, an eruption had commenced at Kilauea's summit caldera. Previously, as noted below the caldera had been filling with a green-ish water lake, but that quickly disappeared, as lava has once again made an appearance inside of the crater. Within one week, what had been a history-making lake of water was replaced by a nearly 600-foot deep lake of molten lava.
- Animated GIF of eruption first occurring on December 20, 2020
A magnitude 4.4 earthquake additionally hit about an hour after the volcano began erupting. By the morning of 12/21/20, two of the three initial fissure vents on the wall of the Halemaumau crater were feeding a growing lava lake.
The eruption paused in late May 2021, after several months of activity in the Halemaumau crater.
2020-2021 Eruption Images
Halemaumau Crater at Kilauea Volcano
Development of Water Lake in 2019
On August 1, 2019, USGS Hawaiian Volcano Observatory (HVO) scientists confirmed a growing pond of water in the recently enlarged Halemumau crater. Initially, it appeared as small, separate turquoise ponds, but over time, the small ponds united and began to grow dramatically. For a period of time, the depth of the growing lake was increasing several inches per day.
In the space of just over one year's time, a persistent lake of lava had vanished in a dramatic collapse, only to be replaced by the first lake of water to be recorded at Kilauea in modern history.
Over the course of its relatively short lifespan, the lake grew to be approximately 160 feet (49 m) deep. That's taller than a 10-story building, for reference. The lake also changed color due to the precipitation of iron-sulfate minerals and SO2 being dissolved into the water.
2018 East Rift Zone Eruption
Kilauea caldera has undergone a tremendous amount of change over the last decade, and prior to the eruption in December 2020, had not been very active since 2018. See the maps immediately below to get an idea of how volatile the years between 2009 and 2018 were at the park or explore this geo-narrative by the USGS about the 2018 eruption.
In the first days of May 2018, the lava lake that had existed in Halemaumau crater for almost a decade began to drain away. Magma moved from the summit of Kilauea to the Lower East Rift Zone, marked by a series of earthquakes. On May 3rd, the first fissures opened up in the subdivision of Leilani Estates and the massive eruption of 2018 began to unfold in lower Puna.
With less magma left to support the summit, the Halemaumau crater began to collapse. Every 28 hours, on average, the ground within the summit caldera of Kilauea sank with dramatic collapse events. By the end of the 2018 eruption, the Halemaumau crater had sunk by 1,600 feet (488m), and its diameter more than doubled.
Activity circa 2018 East Rift Zone Eruption
Prior to 2018, you could just as easily have witnessed lava flows chewing on Chain of Craters Road as you could view a steam plume from afar. Kilauea is a living, breathing volcano with a mind of its own.
Kilauea's oldest lava flows are dated between 210,000 and 280,000 years ago. Those flows are considered generally young, geologically speaking, for an active volcano.
For the last one thousand years, Kilauea's ongoing eruptions have dramatically shaped the southeast portion of the Big Island of Hawaii.
The most recent 100 years of volcanic activity at Kilauea can be divided into seven distinct eruptions.
Kilauea Eruption History:
- May 1924 explosive eruption
- 1955 Lower East Rift Zone Eruption
- 1959 eruption of the Kilauea Iki
- 1960 Kapoho eruption
- 1969-1974 Mauna Ulu Eruption
- 2008-2018 Summit Eruption & Lava Lake
- 1983-2018 Pu'u 'O'o Eruption
Mauna Loa Historical Eruptions
Mauna Loa Eruption History
Last Activity: November 2022 - December 2022
After 38 years, Mauna Loa briefly erupted
- Mauna Loa, the world's largest volcano, which had been rumbling since mid-September 2022, erupted from late November until mid-December 2022.
- Check out some great USGS photos of the 2022 Mauna Loa Eruption
- View the USGS eruption map for a visualization of the eruption location
- See our 'What's Happening on Mauna Loa' section below for current information.
What happened?
The Mauna Loa volcano, located on the Big Island of Hawaii, recently erupted on Sunday - November 27, 2022. The eruption, which was the first in nearly 40 years, was relatively small and caused no damage to nearby communities or infrastructure. The eruption was preceded by several weeks of increasing seismic activity, as well as ground deformation and elevated sulfur dioxide emissions. The HVO had placed the volcano on "watch" status shortly before the eruption, indicating an eruption was likely. As of December 11, 2022, the eruption has concluded.
As noted above, the eruption was relatively small, and no evacuations were necessary. No major highways were damaged, though initial concerns were that Saddle Road (Daniel K. Inouye Highway) might be impacted. Fortunately, it never was impacted by the lava flows. The lava flow was not close enough to any populated areas or infrastructure to cause any damage.
The recent eruption is a reminder of the power and unpredictability of volcanoes. Mauna Loa is one of five active/dormant volcanoes in the Hawaiian Islands and is the largest active volcano on Earth.
Latest Mauna Loa Developments
Updates provided by the USGS
Current daily updates on the status of the Mauna Loa Eruption can be found on the USGS website.
See the USGS eruption map to visualize the current eruption location, or view these incredible USGS photos of the recent Mauna Loa eruption.