Hawaii Volcano Blog

Friday, April 16, 2021

Volcano Watch: Young Activity in Kīlauea’s Southwest Rift Zone

It is no secret that the Island of Hawaiʻi is home to fantastic volcanic features, many of which have been created during eruptions of Kīlauea, Mauna Loa, and Hualalai since 1800.
Friday, April 09, 2021

What’s That (Seismic) Noise?

The USGS Hawaiian Volcano Observatory (HVO) uses dozens of seismometers to locate individual earthquakes and identify signals that are related to faulting and magma movement within our volcanoes.
Saturday, April 03, 2021

Back-to-Back Quakes Shake Same Spot Under Mauna Loa Saturday

The USGS “Did you feel it?” service received over 130 felt reports within the first hour of the earthquake, including one report from Kaua‘i.
Thursday, April 01, 2021

Volcano Watch: The Lava Lakes of Kīlauea Then and Now

One of the most interesting aspects of the current activity in Halemaʻumaʻu is the occasional oozing of lava around the edges of the entire crater while the lava surface is rising.
Saturday, March 20, 2021

Volcano Watch: Using the ocean to track volcanic activity at Kīlauea

As these swells rise and fall, they couple with the ocean floor below them creating a constant signal.
Monday, March 15, 2021

VOLCANO WATCH: If Mauna Loa Erupted, Would You Be Ready?

How can you prepare for a Mauna Loa eruption? The most important thing you can do is to have a personal response plan — especially if you live in or near the magenta zone.
Thursday, March 04, 2021

VOLCANO WATCH: Seismicity preceding the 2020 eruption of Kīlauea Volcano

HVO scientists continue to keep a close eye on Kīlauea and the other volcanoes around the island, always analyzing and interpreting data for any hint of activity that may precede the next eruption, wherever it may be.
Friday, February 26, 2021

Volcano Watch: When Will Mauna Loa Erupt Next?

Mauna Loa is not currently erupting. But there have been signs of elevated unrest above known background activity since July 2019.
Thursday, February 18, 2021

VOLCANO WATCH: What’s going on at Kīlauea’s Summit Lava Lake?

The rise of the lava lake has been interrupted by several plateaus, and even drops, in level over the past few weeks.
Friday, February 12, 2021

VOLCANO WATCH: Ken Hon Returns to HVO as Scientist-in-Charge

The next USGS Hawaiian Volcano Observatory (HVO) Scientist-in-Charge (SIC) has been named, and it’s a name that Island of Hawai‘i residents may be familiar with—Dr. Ken Hon. Ken will be the 21st Scientist-in-Charge filling a position originally created by Thomas A. Jaggar, who founded HVO in 1912 and directed it until 1940. Ken follows recent […]
Thursday, February 04, 2021

VOLCANO WATCH: Kīlauea’s South Flank, What’s Shaking?

Kīlauea’s south flank was the site of five earthquakes of magnitude 4.0 or greater in the past year.
Thursday, January 28, 2021

Volcano Watch: Lava, Not Fire — but Island, Raft or Basalt Berg?

Words matter among volcanologists themselves, of course, but they particularly matter in our dealings with the public, when we attempt to both tell what is happening and educate about how volcanoes work.
Friday, January 22, 2021

VOLCANO WATCH: A Closer Look at Kīlauea’s Newest Lava

New eruptions at Kīlauea provide a glimpse into what is happening inside the volcano and its magma reservoirs.
Thursday, January 14, 2021

Volcano Watch: How We Know How Much Sulfur Dioxide Volcanoes Emit

Volcanic gases are an important part of eruptions—they help magma to rise within the earth and erupt, they can tell us how much lava is being erupted, and the volcanic air pollution (vog) they cause can be a hazard.
Thursday, January 07, 2021

Volcano Watch: New Tephra Lab For HVO Eruption Monitoring

Lava activity is confined to Halemaʻumaʻu with lava erupting from vents on the northwest side of the crater.
Friday, January 01, 2021

VOLCANO WATCH: Kīlauea’s Ongoing Eruption, A Rising Lava Lake

At approximately 3 a.m. HST on Dec. 26, activity at the west vent increased dramatically as the fountaining at the north vent died out.
Friday, December 18, 2020

Volcano Watch: Small but Notable Magma Intrusion at Kīlauea’s Summit

The 2018 lower East Rift Zone eruption and summit caldera collapse marked the end of the 35-year-long Puʻu ʻŌʻō and 10-year-long summit lava lake eruptions, and the beginning of a new chapter in Kīlauea Volcano activity.
Friday, December 11, 2020

Volcano Watch: Recent Activity Reminds Us to Maintain our Volcano Awareness

Residents should be aware of Hawaiʻi’s active volcanoes.
Wednesday, December 09, 2020

HVNP Announces 6 Free Days of Admission in 2021

The entrance fee waiver for the fee-free days does not cover camping or backcountry overnight permit fees.
Sunday, December 06, 2020

County Releases Kīlauea Recovery Plan

In total, 31 projects are identified, which come with their own action steps and an implementation structure that fosters collaboration.
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