News

It happened again. Did you notice? Last week a portion of Kīlauea Volcano's south flank slowly slipped seaward. Its movement is part of a recurring...

Geologic mapping is considered by some to be "old school" science. By current standards, there's certainly nothing glitzy or high tech about walking...

October 15, 2015, is the 3rd annual Great Hawaii ShakeOut. That day also marks the 9th anniversary of Hawaii's two most recent damaging earthquakes.

The State of Hawaii has a long history of destructive earthquakes. More than 30 magnitude-6.0 or greater earthquakes have impacted the islands since...

Bottled soda, when opened suddenly after shaking, is commonly used as an analogy for volcanic eruptions. Perhaps the first use of this analogy for...

The USGS Hawaiian Volcano Observatory (HVO) changed the Volcano Alert Level and Aviation Color Code for Mauna Loa Volcano from NORMAL/GREEN to...

During the 1950s, a decade of major change in volcano monitoring, the USGS Hawaiian Volcano Observatory (HVO) was moving from the mechanical into the...

This week marks the one-year anniversary of when the June 27th lava flow, named for the date in 2014 that it began erupting from Pu‘u ‘Ō‘ō on Kīlauea...

Does lava continue to flow exactly as it did on land or does it behave differently after it enters the ocean?

In early 1918, visitors swarmed to Kīlauea Volcano to see a splendid show. The molten lake in Halema‘uma‘u had been rising and the pit was almost full...