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Satellite image of eruptive fissures and area covered with lava, Le...
Image of eruptive fissures and area covered with lava, Leilani Estates
Image of eruptive fissures and area covered with lava, Leilani Estates
Image of eruptive fissures and area covered with lava, Leilani Estates

Eruptive fissures and areas covered by lava in the Leilani Estates subdivision, Island of Hawai‘i, are denoted on this satellite image acquired on March 17, 2018 (copyrighted image provided by Digital Globe).

Eruptive fissures and areas covered by lava in the Leilani Estates subdivision, Island of Hawai‘i, are denoted on this satellite image acquired on March 17, 2018 (copyrighted image provided by Digital Globe).

Kīlauea East Rift Zone Map as of 8:00 a.m., May 4...
Kīlauea ERZ Map as of 8:00 a.m., May 5
Kīlauea ERZ Map as of 8:00 a.m., May 5
Kīlauea ERZ Map as of 8:00 a.m., May 5

This map shows the locations, mapped by USGS-HVO scientists, of the three eruptive fissures in the order that they occurred in the Leilani Estates Subdivision as of 8:00 a.m. HST today (May 4). The fissures are jetting copious amounts of sulfur dioxide gas, which should be avoided.

This map shows the locations, mapped by USGS-HVO scientists, of the three eruptive fissures in the order that they occurred in the Leilani Estates Subdivision as of 8:00 a.m. HST today (May 4). The fissures are jetting copious amounts of sulfur dioxide gas, which should be avoided.

Steaming cracks at 5:57 a.m. HST in Leilani Estates subdivision, mo...
Steaming cracks at 5:57 a.m. in Leilani Estates subdivision, momen...
Steaming cracks at 5:57 a.m. in Leilani Estates subdivision, momen...
Steaming cracks at 5:57 a.m. in Leilani Estates subdivision, momen...

Steaming cracks at 5:57 a.m. HST in Leilani Estates subdivision, moments before a fissure opened up on Kaupili Street.

Ash plume rises above Pu‘u ‘Ō‘ō...
Ash plume rises above Pu‘u ‘Ō‘ō
Ash plume rises above Pu‘u ‘Ō‘ō
Ash plume rises above Pu‘u ‘Ō‘ō

At 10:30 HST, ground shaking from a preliminary magnitude-5.0 earthquake south of Pu‘u ‘Ō‘ō caused rockfalls and possibly additional collapse into the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's East Rift Zone. A short-lived plume of ash produced by this event lofted skyward and dissipated as it drifted southwest from Pu‘u ‘Ō‘ō.

At 10:30 HST, ground shaking from a preliminary magnitude-5.0 earthquake south of Pu‘u ‘Ō‘ō caused rockfalls and possibly additional collapse into the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's East Rift Zone. A short-lived plume of ash produced by this event lofted skyward and dissipated as it drifted southwest from Pu‘u ‘Ō‘ō.

person with white hardhat in the bottom of a narrow trench supported by metal bars
Trench Across West Napa Fault, California
Trench Across West Napa Fault, California
Trench Across West Napa Fault, California

Belle Philibosian in a trench investigating the West Napa Fault near St. Helena, California, August 2017.

Several sets of new, small ground cracks observed on roads around L...
New, small ground cracks on roads, Leilani Estates subdivision
New, small ground cracks on roads, Leilani Estates subdivision
New, small ground cracks on roads, Leilani Estates subdivision

Puna residents reported to HVO geologists the recent appearance of ground cracks on a couple of roads in and around Leilani Estates. No steaming or heat were observed to originate from the cracks, and the cracks are currently still small (no more than several inches across).

Puna residents reported to HVO geologists the recent appearance of ground cracks on a couple of roads in and around Leilani Estates. No steaming or heat were observed to originate from the cracks, and the cracks are currently still small (no more than several inches across).

April 30th, 2018, Pu‘u ‘Ō‘ō crack...
Apr. 30th, 2018, Pu‘u ‘Ō‘ō crack
Apr. 30th, 2018, Pu‘u ‘Ō‘ō crack
Apr. 30th, 2018, Pu‘u ‘Ō‘ō crack

This map shows recent changes to Kīlauea's East Rift Zone lava flow field and Pu‘u ‘Ō‘ō cone. The 61g flow field, as of April 13, 2018, is shown in pink. The crack that formed on the west side of Pu‘u ‘Ō‘ō on April 30th, 2018, during or immediately after the crater floor collapse is shown as a solid black line.

This map shows recent changes to Kīlauea's East Rift Zone lava flow field and Pu‘u ‘Ō‘ō cone. The 61g flow field, as of April 13, 2018, is shown in pink. The crack that formed on the west side of Pu‘u ‘Ō‘ō on April 30th, 2018, during or immediately after the crater floor collapse is shown as a solid black line.

As of this afternoon (May 1), the eruption at the summit of Kīlauea...
As of this afternoon (May 1), the eruption at the summit of Kīlauea...
As of this afternoon (May 1), the eruption at the summit of Kīlauea...
As of this afternoon (May 1), the eruption at the summit of Kīlauea...

As of this afternoon (May 1), the eruption at the summit of Kīlauea has apparently not been affected by the collapse of Pu‘u ‘Ō‘ō or intrusion of magma along the volcano's Lower East Rift Zone.

Within hours of the Pu‘u ‘Ō‘ō crater floor collapse, HVO's monitori...
Within hours of the Pu‘u ‘Ō‘ō floor collapse, HVO's monitoring inst...
Within hours of the Pu‘u ‘Ō‘ō floor collapse, HVO's monitoring inst...
Within hours of the Pu‘u ‘Ō‘ō floor collapse, HVO's monitoring inst...

Within hours of the Pu‘u ‘Ō‘ō crater floor collapse, HVO's monitoring instruments recorded increased seismicity and ground deformation along Kīlauea Volcano's East Rift Zone (ERZ) that continued through the night. These signals indicated an intrusion of magma from the Middle ERZ toward the Lower ERZ, extending from Pu‘u ‘Ō‘ō to at least Highway 130.

Within hours of the Pu‘u ‘Ō‘ō crater floor collapse, HVO's monitoring instruments recorded increased seismicity and ground deformation along Kīlauea Volcano's East Rift Zone (ERZ) that continued through the night. These signals indicated an intrusion of magma from the Middle ERZ toward the Lower ERZ, extending from Pu‘u ‘Ō‘ō to at least Highway 130.

Kīlauea summit lava lake level drops with deflation...
Kīlauea summit lava lake level drops with deflation
Kīlauea summit lava lake level drops with deflation
Kīlauea summit lava lake level drops with deflation

Just before 10:00 a.m. today (Monday, April 30), a break in the weather allowed HVO's webcam to capture this image of the lava lake within Halema‘uma‘u at the summit of Kīlauea. Following multiple overflows of the lava lake last week, the lake level dropped over the weekend in concert with the switch to summit deflation.

Just before 10:00 a.m. today (Monday, April 30), a break in the weather allowed HVO's webcam to capture this image of the lava lake within Halema‘uma‘u at the summit of Kīlauea. Following multiple overflows of the lava lake last week, the lake level dropped over the weekend in concert with the switch to summit deflation.

Vigorous overflows from Kīlauea's summit lava lake covered a large ...
Vigorous overflows from Kīlauea's summit lava lake covered a large ...
Vigorous overflows from Kīlauea's summit lava lake covered a large ...
Vigorous overflows from Kīlauea's summit lava lake covered a large ...

Vigorous overflows from Kīlauea's summit lava lake covered a large portion of the floor of Halema‘uma‘u this morning. In this video, the view starts from the north and heads south, showing the north and east sides of Halema‘uma‘u crater.

Vigorous overflows from Kīlauea's summit lava lake covered a large portion of the floor of Halema‘uma‘u this morning. In this video, the view starts from the north and heads south, showing the north and east sides of Halema‘uma‘u crater.

A busy time at Kīlauea Volcano's summit and East Rift Zone...
A busy time at Kīlauea's summit and ERZ
A busy time at Kīlauea's summit and ERZ
A busy time at Kīlauea's summit and ERZ

Night view of Kīlauea Volcano's summit lava lake from April 24, 2018, while lava from the lake overflow was spreading westward (to the right in the picture) from the Overlook Vent. USGS photo from the Hawai‘i Volcanoes National Park Jaggar Overlook by M. Patrick.

Night view of Kīlauea Volcano's summit lava lake from April 24, 2018, while lava from the lake overflow was spreading westward (to the right in the picture) from the Overlook Vent. USGS photo from the Hawai‘i Volcanoes National Park Jaggar Overlook by M. Patrick.

Cartoons showing ocean wave scenarios and what would happen to groundwater given rising sea level conditions.
Atoll-island groundwater
Atoll-island groundwater
Atoll-island groundwater

Conceptual diagram showing impact of sea-level rise and wave-driven flooding on atoll-island groundwater. (A) Current sea level. (B) Future sea level. Sea-level rise will allow for greater wave heights (H) and wave-driven runup (R), resulting in frequent overwash that will contaminate the atoll island’s freshwater lens. Note: Heights are exaggerated.

Conceptual diagram showing impact of sea-level rise and wave-driven flooding on atoll-island groundwater. (A) Current sea level. (B) Future sea level. Sea-level rise will allow for greater wave heights (H) and wave-driven runup (R), resulting in frequent overwash that will contaminate the atoll island’s freshwater lens. Note: Heights are exaggerated.

Kīlauea summit lava lake overflows onto Halema‘uma‘u crater floor...
Kīlauea summit lava lake overflows onto Halema‘uma‘u floor
Kīlauea summit lava lake overflows onto Halema‘uma‘u floor
Kīlauea summit lava lake overflows onto Halema‘uma‘u floor

Beginning around midnight on Saturday, April 21, Kīlauea Volcano's summit lava lake rose high enough that lava briefly spilled onto the floor of Halema‘uma‘u. Since then, additional overflows occurred in four pulses on April 22-23. The largest one occurred during the fourth pulse, which started at 6:30 a.m.

Beginning around midnight on Saturday, April 21, Kīlauea Volcano's summit lava lake rose high enough that lava briefly spilled onto the floor of Halema‘uma‘u. Since then, additional overflows occurred in four pulses on April 22-23. The largest one occurred during the fourth pulse, which started at 6:30 a.m.

Do recent changes herald the opening of a new vent on Pu‘u ‘Ō‘ō?...
Do recent changes herald the opening of a new vent on Pu‘u ‘Ō‘ō?
Do recent changes herald the opening of a new vent on Pu‘u ‘Ō‘ō?
Do recent changes herald the opening of a new vent on Pu‘u ‘Ō‘ō?

Overflows from the perched lava pond within west pit, a small crater adjacent to the main Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's East Rift Zone, continue to build up the levees around the pond. The rising level of the perched lava pond during the past month is a sign of the increasing pressure within the magma system beneath Pu‘u ‘Ō‘ō.

Overflows from the perched lava pond within west pit, a small crater adjacent to the main Pu‘u ‘Ō‘ō crater on Kīlauea Volcano's East Rift Zone, continue to build up the levees around the pond. The rising level of the perched lava pond during the past month is a sign of the increasing pressure within the magma system beneath Pu‘u ‘Ō‘ō.

This time-lapse image sequence taken by a time-lapse camera on the ...
This time-lapse image sequence taken by a time-lapse camera on the ...
This time-lapse image sequence taken by a time-lapse camera on the ...
This time-lapse image sequence taken by a time-lapse camera on the ...

This time-lapse image sequence taken by a time-lapse camera on the rim of Pu‘u ‘Ō‘ō's west pit, spans March 20 to April 18. The sequence, of approximately one image per day, shows the growth of the lava pond within the west pit as it developed into a perched lava pond. This sequence is looped 4 times.

This time-lapse image sequence taken by a time-lapse camera on the rim of Pu‘u ‘Ō‘ō's west pit, spans March 20 to April 18. The sequence, of approximately one image per day, shows the growth of the lava pond within the west pit as it developed into a perched lava pond. This sequence is looped 4 times.

Ongoing changes at Pu‘u ‘Ō‘ō, with continued breakouts near the ven...
Ongoing changes at Pu‘u ‘Ō‘ō, with continued breakouts near vent
Ongoing changes at Pu‘u ‘Ō‘ō, with continued breakouts near vent
Ongoing changes at Pu‘u ‘Ō‘ō, with continued breakouts near vent

A brief break in the rain allowed for some clear views of Pu‘u ‘Ō‘ō on Kīlauea Volcano's East Rift Zone. Since mid-March, Pu‘u ‘Ō‘ō tiltmeters have been recording inflation, and uplift of the crater floor is visible in HVO webcams.

A brief break in the rain allowed for some clear views of Pu‘u ‘Ō‘ō on Kīlauea Volcano's East Rift Zone. Since mid-March, Pu‘u ‘Ō‘ō tiltmeters have been recording inflation, and uplift of the crater floor is visible in HVO webcams.

Governor Inslee's Proclaims May to be Volcano Preparedness Month in...
Governor Inslee's Proclaims May Volcano Preparedness Month in WA
Governor Inslee's Proclaims May Volcano Preparedness Month in WA
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