Volcano Watch — Glaciers on Mauna Kea? You crazy? In the middle of the...
Mauna Kea, a dormant volcano in the post-shield stage, last erupted about 4,500 years ago. Its oldest exposed lavas are about 250,000 years old.
View ArticleVolcano Watch — How well do you know the volcanoes in your backyard?
We often hear the term "IQ" (intelligence quotient)—but how would you rate your "VAQ" (volcano awareness quotient)? In other words, how well do you know the volcanoes in your backyard?
View ArticleVolcano Watch — Mirror, mirror, on the wall, who's the hottest of them all?
Hawai‘i is the quintessential "hotspot." The geologic definition of a "hotspot" is that region of the Earth beneath an area that has experienced high levels of active volcanism for an extended period...
View ArticleUSGS HVO Press Release — Magnitude-4.5 Earthquake on the North Flank of Mauna...
HAWAI‘I ISLAND, Hawai‘i — The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquake located beneath the Island of Hawai‘i on Wednesday, October 19, at 2:10...
View ArticleUSGS HVO Press Release — Current status of Hawai‘i Island's volcanoes...
Hawai‘i ISLAND, Hawai‘i – The current status of Hawai‘i Island's active volcanoes and how they are monitored will be the topic of a Volcano Awareness Month program in Kailua-Kona on Wednesday, January 11.
View ArticleVolcano Watch — What will it take to grow another ice cap on Mauna Kea?
In the past half-million years, Mauna Kea has supported an ice cap at least four times. These glaciations occur when the climate is cold and wet, when more snow falls each year than melts.
View ArticleVolcano Watch — Lake Waiau is part of Mauna Kea's glacial past
As days get shorter and nights cooler, we look to the summits of majestic Mauna Kea after rainstorms to see whether there might be a cap of pure white snow.
View ArticleVolcano Watch — Lake Waiau is shrinking fast
About a year ago, a Volcano Watch article described recent changes at Lake Waiau, the tiny lake just below Mauna Kea's summit that is Hawai‘i's only alpine lake.
View ArticleUSGS HVO Press Release — Magnitude 4.5 Earthquake Northeast of Kawaihae, Hawai‘i
The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquakelocated beneath the Island of Hawai‘i on Thursday, August 7, at 6:24 a.m., HST. The Pacific Tsunami...
View ArticleVolcano Watch — A geological tour of the Hawaiian Islands: Hawai‘i
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...
View ArticleUSGS HVO Press Release — Magnitude-4.6 earthquake southwest of Waimea, Island...
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...
View ArticleUSGS HVO Press Release — Magnitude-4.7 offshore earthquake north of Hawai‘i...
The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.7 earthquake north of the Island of Hawai‘i and east of the Island of Maui on Thursday, March 31, at 11:16 p.m.,...
View ArticleVolcanic threat assessment helps prioritize risk reduction efforts at U.S....
The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people, property and infrastructure to harm during an eruption....
View ArticleWe continue to monitor and report on volcanic activity during any lapse in...
During the current federal government shutdown, the Volcano Hazard Program and all five U.S. Volcano Observatories will continue to issue updates, warnings, and notifications through the usual...
View ArticleUpdate on January 2019 Volcano Awareness Month Presentations
Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present lectures as planned.
View ArticleUpdate on January 2019 Volcano Awareness Month Presentations
Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present public lectures as planned.
View ArticleVolcano Watch - Why do some Hawaii earthquakes occur so far offshore?
Earthquakes in Hawaii are intimately related to the volcanoes. In addition to helping scientists track moving magma, sometimes they happen simply because the earth under the island chain gets bent out...
View ArticleVolcano Awareness Month
January 2019 is Hawaiʻi Island's 10th annual Volcano Awareness Month.
View ArticleHow to stay informed about Hawaiian volcanoes
Information about how to stay informed about Hawaiian volcanoes.
View ArticleVolcano Watch — Mauna Loa Volcano's 1935 lava flow seen in current media...
In ongoing media coverage of demonstrations at the base of Mauna Kea, many hundreds of people can be seen standing on a black lava flow that surrounds the Pu‘uhuluhulu Native Tree Sanctuary adjacent to...
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