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Date published: March 27, 2019

Volcano Alert Level for Kīlauea lowered to NORMAL

On March 26, 2019, in response to reduced activity on the volcano, HVO lowered the Volcano Alert Level for Kīlauea's ground-based hazards from ADVISORY to NORMAL.

Date published: March 26, 2019

New USGS Report: Undocumented late 18th- to early 19th-century volcanic eruptions in the Southwest Rift Zone of Kīlauea Volcano

Kīlauea's Southwest Rift Zone was more volcanically active in the late 18th- to early 19th-centurys than previously assumed.

Date published: March 26, 2019

Video of 2018 UAS imagery

The 2018 Kīlauea Volcano lower East Rift Zone eruption was the first time Unmanned Aircraft Systems (UAS) were used by the Federal Government to assist with an eruption response in the U.S. The UAS (drones) surveyed areas that were too hazardous for field crews or manned aircraft to access, collected multiple types of data, and provided 24/7 real-time situational awareness.

Date published: March 22, 2019

Volcano Watch - Did groundwater trigger explosive eruptions at Kīlauea?

In February 1924, the surface of the lava lake at Halema‘uma‘u dropped rapidly and disappeared from view. Throughout March and April, the crater floor subsided as magma moved out of the summit reservoir into the East Rift Zone. By May 6, 1924, the floor of Halema‘uma‘u had dropped more than 180 m (about 600 ft) below the crater rim. 

Date published: March 15, 2019

Volcano Watch - M5.5 earthquake: a bump in the night toward more typical seismic background

Early Wednesday morning, just before 1AM on March 13, houses in east Hawai`i began to shake. Without a doubt, it was an earthquake. To those who endured the near-daily shaking from last summer’s collapse events at Kīlauea’s summit, this week’s earthquake was clearly different.

Date published: March 13, 2019

Magnitude 5.5 earthquake on Kīlauea Volcano's south flank

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.5 earthquake located beneath Kīlauea Volcano's south flank on Wednesday, March 13, at 12:55 a.m., HST. 

Date published: March 7, 2019

Volcano Watch - How is lava flow thickness measured and why does it matter?

Eruption rate (how much lava comes out of the ground per unit time) is probably the best measure of volcanic activity, and the first step in that calculation is to measure lava flow thickness and area. 

Date published: February 28, 2019

Volcano Watch - How do lava flows cool and how long does it take?

Since the end of the 2018 lower East Rift Zone (LERZ) eruption on Kīlauea Volcano, questions have surfaced concerning how long it will take for the new lava flows to solidify. This is a difficult question to answer, because the initial eruptive temperatures along with many different factors can influence the rate of cooling.

Date published: February 22, 2019

Monitoring camera (K3cam) peers into Halemaʻumaʻu

A temporary monitoring camera on the west rim of Kīlauea caldera now provides views looking east toward the bottom of the recently enlarged Halema‘uma‘u.

Date published: February 22, 2019

The 2018 rift eruption and summit collapse of Kīlauea Volcano

2018 Kīlauea lower East Rift Zone eruption and calderal collapse described in Science paper.

Date published: February 22, 2019

USGS Fact Sheet "Volcanic Air Pollution Hazards in Hawaiʻi" wins award

USGS Fact Sheet, written by HVO scientists, won the 2018 Shoemaker Award for Communications Product Excellence for the Small Print category.

Date published: February 22, 2019

How to stay informed about Hawaiian volcanoes

Information about how to stay informed about Hawaiian volcanoes.