Passing by a series of subterranean geological features named cave chocolate, cave bacon and cave popcorn, I start to wonder ...

A key site that monitors global carbon-dioxide emissions went offline for maintenance and will return later Wednesday, according to the National Oceanic and Atmospheric Administration.

The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The ...

November 29, 2022 Mauna Loa, the world’s largest active volcano, has started to erupt for the first time in nearly four ...

Update at 3 a.m. Feb. 2: The National Weather Service in Honolulu has canceled the wind advisory previously in effect for the ...

The USGS Hawaiian Volcano Observatory spearheads Volcano Awareness Month each January on the Island of Hawaii. This year, in ...

The HNN First Alert Weather Team earlier declared a First Alert Weather Day statewide through Friday morning. A Flash Flood ...

Hawaiʻi is bracing for a low-pressure system that will bring strong winds and flooding today through Friday. High-wind ...

A Kona storm is going to push through Hawaii this week, bringing the threat of heavy rain, flooding and yes, even snow.

A winter storm will bring severe weather across Hawaii beginning on Thursday, with impacts expected until Saturday morning.

Using a nearly 200-year record of lava chemistry from Kīlauea and Maunaloa, earth scientists from the University of Hawaiʻi ...

Using a nearly 200-year record of lava chemistry from Kīlauea and Mauna Loa on the Big Island, scientists from University of ...