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The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea ...

The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea ...

The gentle slope of Mauna Loa as seen from the flanks of Mauna Kea to the north. Younger lava flows appear dark on the volcano's flank, and clouds rest in the eastern saddle between the two volcanoes.

Clear day during tradewind conditions at the summit of Kīlauea Volc...

Clear day during tradewind conditions at the summit of Kīlauea

Clear day during tradewind conditions at the summit of Kīlauea Volcano, Hawai‘i

Map of lava flows that have erupted on Mauna Loa Volcano from 1843-...

Map of lava flows that have erupted on Mauna Loa Volcano — 1843-1985

Map of lava flows that have erupted on Mauna Loa Volcano from 1843-1984.

Image: An Endangered Honeycreeper, the `Akikiki (Kaua`i Creeper), in Hawaii

An Endangered Honeycreeper, the `Akikiki (Kaua`i Creeper), in Hawaii

Many species of Hawaiian honeycreepers have persisted into the 20th century because high elevation rain forests on the islands of Kaua’i, Maui, and Hawai’i are cool enough to limit transmission of introduced avian malaria (Plasmodium relictum). Malaria transmission is tied closely to the effects of temperature on development of malarial parasites within their

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Thumbnail of a poster which is laid out with photos, images, and text.
January 1, 2005

Mud Damages Hawaiian Coral Reefs

Poster about the USGS Pacific Coastal and Marine Science Center's research from 2000-2004, on how mud damages hawaiian coral reefs.

View of SP cam

[SPcam] South Pit from South Rim

This image is from a research camera positioned on the south rim of Mokuʻāweoweo, Mauna Loa's summit caldera, in Hawaiʻi Volcanoes National Park. The camera looks west-southwest, across South Pit, focusing on the south part of Mauna Loa's summit region and upper Southwest Rift Zone.

Disclaimer

The webcams are operational 24/7 and faithfully

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Image: Minute Gem Snail (Hawaiia minuscula)

Minute Gem Snail (Hawaiia minuscula)

Hawaiia minuscula shell viewed with a scanning electron microscope with aperture facing up.

View of caldera from a webcam on the roof of a building

Kīlauea Caldera - East Wide Angle from HVO Observation Tower [KEcam]

The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure visibility. The cameras are subject to sporadic breakdown, and may not be repaired immediately. Some cameras are

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USGS
March 29, 2018

Preliminary Analysis of Hazards at the Kamokuna Ocean Entry

COOPERATOR REPORT TO: US COAST GUARD

Preliminary Analysis of Hazards at the Kamokuna Ocean Entry

Click on image above to view report.

Vog obscures view during slack or no tradewinds at the summit of Kī...

Vog obscures view during slack or no tradewinds at summit of Kīlauea

Vog obscures view during slack or no tradewinds at the summit of Kīlauea Volcano, Hawai‘i

Side-by-side comparison of the northwest wall of Kīlauea Caldera on...

Side-by-side comparison of the NW wall of Kīlauea Caldera on a clea...

Side-by-side comparison of the northwest wall of Kīlauea Caldera on a clear day (left) and a day with thick vog (right). HVO observation tower and building can be seen near the center in each photo.

Low-light view

[HMcam] Halemaʻumaʻu Overlook Vent from Halemaʻumaʻu Overlook

This image is from a temporary research camera positioned at the Halemaʻumaʻu Visitor Overlook, looking at a steep angle toward the eruptive vent in Halemaʻumaʻu. The camera is set to record images in a low-light mode, which is better able to see through the gas plume.

Disclaimer

The webcams are operational 24/7 and faithfully record the dark

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Filter Total Items: 1,427
Current eruption continuing at low levels...
June 26, 1992

We will cover activity during the last two weeks, since we missed our deadline last week. The episode 51 vents on the west flank of Pu`u `O`o, which began erupting on Wednesday, June 10, shut down on June 16. The vents were then inactive until Sunday, June 21, and have continued to be active through June 26.
 

Kīlauea's not Hawaii's only active volcano...
June 12, 1992

The volcanic hazards posed by Kīlauea Volcano are obvious to everyone who sees the active eruptions and visits Hawai`i Volcanoes National Park, where the starkness of much of the volcanic landscape is a testament to the recency of activity. 

Volcano slides are often the cause of strong earthquakes...
June 5, 1992

Moderate to large earthquakes located beneath the south flank of Kīlauea Volcano are commonly caused by seaward sliding of that part of the volcano. On Friday, May 29, at 2:03 p.m., a 3.3-magnitude earthquakeoccurred about five miles deep and 15 miles offshore from Kīlauea's shoreline. 

Sputtering lava flows build behind shield...
May 22, 1992

The episode 51 vents on the west flank of Pu`u `O`o which were inactive for six days starting Tuesday, April 28, were in continuous eruption since Monday, May 4, starting at about noon, until Friday afternoon. During this 18-day interval, the eruption was nearly constant in level of activity, as seen in tremor of nearly constant amplitude.
 

Eruption episode remains unpredictable...
May 9, 1992

The episode 51 vents on the west flank of Pu`u `O`o, which stopped erupting on May 22, began erupting again on Wednesday morning sometime shortly before dawn. This eruptive interval was extremely vigorous on Wednesday and Thursday, but stopped Thursday during the night. 

Episode 51 vents now mostly inactive...
April 24, 1992

The episode 51 vents on the west flank of Pu`u `O`o were inactive most of this past week. Last Sunday afternoon, the flows had advanced about one mile south of the vents and burned about 150 acres of forest. 

Eruption continues without interruption...
April 17, 1992

The eruption at the episode 51 vents on the west flank of Pu`u `O`o continued without interruption again this week. The eruption is little changed from a week ago, when we reported that a lava pond had formed just west of the vent. The pond is overflowing and sending a surface-fed pahoehoe flow to the south. 

Lava flow continues; quake tremors light...
April 10, 1992

The eruption at the episode 51 vents on the west flank of Pu`u `O`o continued without interruption this week. A lava pond has formed just west of the lower vent. This pond fills and overflows during periods of high-volume eruption, but most of the time flows are fed through tubes in the sides of the pond. The main flow from the pond has been toward the west.
 

Lava flow continues in starts and stops...
April 3, 1992

Last week we noted that, based on the activity in the pond inside Pu`u `O`o cone, the lull in activity at the episode 51 vent was probably just another pause in episode 51. Sure enough, the vent again began erupting Sunday morning about 9:30 a.m., or about the time you were reading about the eruption in last Sunday's paper.
 

Kīlauea's episode 51 finally calls it quits...
April 3, 1992

After being in continuous eruption since Sunday, June 21, the episode 51 vents adjacent to Pu`u `O`o on the East Rift Zone of Kīlauea Volcano finally shut off in the morning on Thursday. Until this extended eruptive period, episode 51 has been characterized by intermittent activity since it began on March 7.
 

Eruption pauses; earthquake shakes isle...
March 27, 1992

The eruption at the episode 51 vent slowed dramatically on Thursday at about 2:00 p.m. and by Friday morning there was no eruptive activity at the vent on the west flank of the Pu`u `O`o cone. The activity in the pond inside the Pu`u `O`o cone suggests that the current lull in activity is just another pause in episode 51.
 

No episode 52 after all, just repeats of 51...
March 20, 1992

With the wisdom of hindsight, we have concluded that the continuing episodic eruptive activity from the vent on the west flank of the Pu`u `O`o cone is a single episode with pauses, rather than a new episode with each eruption at the vent. We are therefore continuing to call the activity that began on March 7 "episode 51."