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Mauna Loa Back to Normal...
June 22, 2018

Mauna Loa Back to Normal

View of cinder cones in the Northeast Rift Zone near the summit of Mauna Loa. View to the north-northeast with Mauna Kea in the background. Mauna Loa has erupted 33 times since 1843, most recently erupting in 1975 and 1984. Photo credit: Matt Patrick, USGS

June 21, 2018

Kīlauea Volcano — Lava Boats in Fissure 8 Channel

Geologists captured this time-lapse video of the perched lava channel issuing from 

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View of the crater
June 21, 2018

Kīlauea Volcano — Halema‘uma‘u Crater Continues Enlarging

The USGS UAS (unoccupied aircraft system) team took this photograph of Halema‘uma‘u Crater from the Kīlauea Overlook on this morning. They are preparing for a flight to map further subsidence at the summit.

June 21, 2018

USGS Status Update of Kīlauea Volcano - June 21, 2018

USGS Hawaiian Volcano Observatory, Status of Kīlauea Volcano, 10:00 a.m. HST, June 21, 2018. Liz Westby, USGS Geologist

Aerial of lava channel
June 21, 2018

Kīlauea Volcano — Wide Lava Channel

At a wide point in the channelized lava flow, a ropy crust has formed over the more fluid 

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Laze plume from ocean entry
June 20, 2018

Kīlauea Volcano — Multiple Laze Plumes

Small streams of lava enter the ocean across a broad area, shown by the multiple white steam and laze plumes. Lava has added about 380 acres of new land into the sea.

Looking down at the crater where the parking lot used to be.
June 20, 2018

Kīlauea Volcano — Halema`uma`u Parking Lot Gone

View of the southern edge of the growing Halema‘uma‘u crater (middle right) during yesterday's helicopter-assisted work at Kīlauea's summit. The once-popular parking lot (closed since 2008) that provided access to Halema‘uma‘u is no longer—the parking lot fell into the crater this past week as more and more of the Kīlauea Crater floor slides into Halema‘uma‘u. The Crater

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A geologist points a thermal camera at a fissure to take a temperature reading
June 20, 2018

Kīlauea Volcano — Temperature Readings

HVO geologist measures 260 degrees C (500 degrees F) along ground cracks near fissure 10 in Leilani Estates. Geologists routinely make temperature measurements to track changes throughout the fissure complex in the lower East Rift Zone.

Aerial view of lava channels
June 20, 2018

Kīlauea Volcano — Lava Channel from Fissure 8

Lava from fissure 8 travels about 13 km (8 mi) to the ocean in an open channel. Lava remains incandescent (glowing orange) throughout its journey. The ocean entry is at upper right.

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The origin of Nīnole Hills (location shown with orange oval, southe...
March 24, 2016

In previous Volcano Watch articles, we addressed the origin of the Nīnole Hills on the southeastern flank of Mauna Loa. These hills are a prominent group of flat-topped ridges towering over the nearby Punaluu Beach Park. 

USGS
March 20, 2016

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.6 earthquakelocated beneath the Island of Hawai‘i on Sunday, March 20, at 6:43 a.m., HST. The Pacific Tsunami Warning Center has determined that no damaging tsunami was generated (http://ptwc.weather.gov/?region=2).

The summit of Mauna Loa (left) rises above the vog layer on the lee...
March 17, 2016

The first few months of 2016 have brought a range of wind and weather conditions to the Island of Hawai‘i.

Kīlauea Volcano's summit eruption in Halema‘uma‘u Crater reaches 8t...
March 10, 2016

The ongoing eruption at Kīlauea Volcano's summit began on March 19, 2008. Since that time, Island of Hawai‘i residents have had to cope with the challenges of increased vog and its effects. 

Close up photo of juvenile brown treesnake on branch.
March 3, 2016

Two recent reports of two brown treesnakes on Saipan is prompting federal and state officials to urge citizens of Hawaii, Guam and other Pacific Islands to report any sightings of these invasive snakes to authorities. Snakes can be reported by calling (671) 777-HISS or (670) 28-SNAKE.

Don Swanson demonstrates that reticulite sinks
March 3, 2016

USGS Hawaiian Volcano Observatory geologist Don Swanson was recently named as the recipient of two prestigious awards.

Mauna Loa: Earth's largest active volcano is still stirring...
February 25, 2016

Despite not being in the headlines, Mauna Loa continues to be in a state of unrest based on seismic and deformation monitoring data.

Recent earthquake highlights one of Hawai‘i's most hazardous faults...
February 18, 2016

On Friday, February 12, at 9:23 a.m., HST, a magnitude-4.1 earthquake occurred beneath Kīlauea Volcano's south flank.

USGS
February 12, 2016

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.1 earthquakelocated beneath Kīlauea Volcano's south flank on Friday, February 12, 2016, at 9:23 a.m., HST. According to the Pacific Tsunami Warning Center, there is no tsunami threat from this earthquake. 

Prodigious plumes present provocative puzzle...
February 11, 2016

In recent weeks, the USGS Hawaiian Volcano Observatory (HVO) has received a number of calls from local residents saying essentially: "Hey, is something up with Kīlauea's eruptions? The plumes at Halema‘uma‘u and Pu‘u ‘Ō‘ō seem to be enormous lately."

Why you've never heard of Hilo's Kalanakamaa gulch...
February 4, 2016

In 1880–1881, a lava flow from Mauna Loa came very close to entering Hilo Bay.

A geological tour of the Hawaiian Islands: Hawai‘i...
January 28, 2016

As the 2016 Volcano Awareness Month comes to an end, so too does our series of "Volcano Watch" articles exploring the geology of the Hawaiian Islands. This week, we conclude our journey with the Island of Hawai‘i.