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Thermal map of flow field...
September 21, 2017

Thermal map over the Episode 61g lava flow. 

Map of flow field...
September 21, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Thermal map of flow field...
September 1, 2017

Thermal map over the Episode 61g lava flow.

Map of flow field...
September 1, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of flow field...
August 20, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field. 

Map of flow field...
August 9, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Thermal map of flow field...
August 9, 2017

This map is similar to the map above but shows a thermal map over the Episode 61g lava flow. 

Satellite image shows location of breakouts on flow field...
July 30, 2017

This satellite image was captured on Sunday, July 30, by the NASA/USGS Landsat 8 satellite. 

Map of flow field...
July 10, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Map of flow field...
June 21, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

Satellite image shows location of breakouts on flow field...
June 2, 2017

This satellite image was captured on Friday, June 2, by the Sentinel-2 satellite operated by the European Space Agency.

Map of flow field...
May 31, 2017

This map shows recent changes to Kīlauea’s East Rift Zone lava flow field.

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A blocked lava channel
July 3, 2018

Kīlauea Volcano — Evolution of a Blocked Channel (Part 1)

Evolution of a blocked channel, photo 1. A blockage of rafted material within the lava channel causes lava to flow over its banks near the Kapoho cone. In this section of the lava channel a cold lava flow from the 1960 eruption forms a barrier on the north side, which initially directed the channel to the southeast. A constriction in the channel formed at the bend where

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Aerial shot showing lava flowing into residential area
July 2, 2018

Kīlauea Volcano — Lava at Kapoho Beach Lots

At the coast, the northern margin of the flow field is still oozing pasty lava at several points in the area of Kapoho Beach Lots.

Close up of a lava overflow
July 2, 2018

Kīlauea Volcano — Overfows

Close up image of overflows from the fissure 8 lava channel. Photograph taken during the morning overflight.

Drone shot looking at brightly colored red and orange lava flows
July 2, 2018

Kīlauea Volcano — Drone Over Lava Channel

USGS Mavic Pro drone image of the fissure 8 lava channel looking toward the vent. Overflows can be seen as incandescent spots beyond the channel margins. Drone flights and resultant imagery help scientists

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Aerial view of an ocean entry with laze plumes
July 2, 2018

Kīlauea Volcano — Ocean Entry

The ocean entry being fed by a crusted over channel has fewer tiny ooze-out channels than yesterday spilling into the water. One larger ooze-out channel making dominant entry plume at the northern end of the broad ocean entry.

Annotated photo looking at fissure 8 lava channels and identifying lava flows in residential areas and the ocean entry
July 2, 2018

Kīlauea Volcano — Fissure 8 Channel (Annotated)

Annotated drone image of Kīlauea Volcano's lower East Rift Zone fissure 8 lava channel. Image captured near Kapoho Crater looking east toward the ocean entry. Incandescent flow margin is more easily identified in the dark - specifically here in the area of Kapoho Beach Lots.

Aerial of lava channels
July 2, 2018

Kīlauea Volcano — Open Lava Channels

Fountains from Fissure 8 spatter cone continue to supply lava to the open channel with intermittent small, short-

...
July 1, 2018

Kīlauea Volcano — Whirlwind Above Fissure 8

In the Leilani Estates subdivision, Hawaiian Volcano Observatory field crews monitoring 

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July 1, 2018

Kīlauea Volcano — Collapse/Explosion Event at Halema‘uma‘u

On June 30, 2018, at 02:51 PM HST, a collapse/explosion event occurred at Kīlauea's summit. An ash-poor 

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Lava flowing around islands of older lava in a lava channel
June 30, 2018

Kīlauea Volcano — Lava Flowing Around Channel Islands

Lava flows around islands in the lava channel. The direction of flow is from the upper right to lower left. Field crews can make a rough calculation of velocity by timing large blocks as they pass between two landmarks that are a known distance apart.

Lava entering Kapoho Bay area
June 30, 2018

Kīlauea Volcano — Kapoho Coast

At the Kapoho coast, lava enters the ocean along the northern margin of the flow field. 

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Why are HVO scientists talking so much about Mauna Loa?...
February 15, 2018

In recent weeks, the USGS Hawaiian Volcano Observatory (HVO) joined forces with several other agencies to talk about Mauna Loa at community events and other public meetings. Unfortunately, some information presented at these gatherings has been misinterpreted.

bursting bubble on the surface of a lava lake
February 8, 2018

If you visit Hawai‘i Volcanoes National Park's Jaggar Museum Overlook when the wind is calm, you might be able to hear the sounds of gas bubbles bursting and lava splashing in the Halema‘uma‘u lava lake at the summit of Kīlauea. What you hear is only part of a rich chorus of sounds emitted from many processes near the surface of an active lava lake.

Early evening view of the lava lake
February 1, 2018

In November 2017, "Volcano Watch" entered its 27th year of publication. The long history of this column is, in large part, thanks to the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) scientists and affiliates who write the weekly articles, Hawaii newspapers and online news outlets that print and post the column, and you, the dedicated readers who peruse it each week.

Volcanic Air Pollution Hazards in Hawaii Fact Sheet....
February 1, 2018

Volcanic Air Pollution Hazards in Hawaii is an updated fact sheet that provides information on the science of Kīlauea's volcanic air pollution, known as "vog."

Halemaʻumaʻu lava lake with Mauna Loa in background...
January 31, 2018

A 24-minute USGS video recounts the eruptive history of Halema'uma'u and tells the story of Kīlauea Volcano's current summit eruption, from its start in 2008 through today.

Why do some earthquakes have negative depths?...
January 25, 2018

Astute visitors to the USGS Hawaiian Volcano Observatory (HVO) website may have noticed that some recent earthquakes have negative depths. This does not indicate a change in seismicity but, rather, an upgrade in HVO's seismic data processing system.

USGS
January 22, 2018

"During the current lapse in appropriations U.S. volcano observatories including the Hawaiian Volcano Observatory will continue to monitor volcanic activity and issue updates, warnings, and notifications through the usual channels, including this website, email, and news releases." 

Clear views at Kīlauea summit and east rift zone eruptions...
January 18, 2018

With recent attention focused on the need to be prepared for all hazards, this week's Volcano Watch offers ways to stay informed about Hawaiian volcanoes and earthquakes.

First high-definition thermal image of the Halemaumau lava lake
January 4, 2018

With the Wolf Moon illuminating Kīlauea Caldera from above and the Halema‘uma‘u lava lake glowing below, the USGS Hawaiian Volcano Observatory (HVO) looks forward to another year of investigating the island's magnificent, active volcanoes. Not surprisingly, 2018 will see additions and improvements to our monitoring and research toolkit.

Happy birthday Pu‘u ‘Ō‘ō! A look back at what happened in 2017...
December 28, 2017

On January 3, 2018, Pu‘u ‘Ō‘ō on Kīlauea Volcano's East Rift Zone reaches its 35th birthday. 

Evolving tube network blocked and diverted lava from the Kamokuna d...
December 21, 2017

Lava erupting from the active vent on the east flank of Pu‘u ‘Ō‘ō has not entered the ocean or reached the Kamokuna lava delta during the past month. Instead, small lava flows are scattered across the 61g flow field, breaking out from the lava-tube network between Pu‘u ‘Ō‘ō and the coastal plain.

Progress can be slow but adds up...
December 14, 2017

Where do we stand today with big-picture knowledge of Kīlauea and Mauna Loa acquired in the past few decades?