Hawaiian Volcano Observatory


HVO monitors the active volcanoes in Hawaii, assesses their hazards, issues warnings, and advances scientific understanding to reduce impacts of volcanic eruptions. 


Date published: October 29, 2020

Volcano Watch — Seismic Swarms and Sulfur Smells: What is Happening at Kīlauea Volcano?

On the evening of Thursday, October 22nd, people living near the summit of Kīlauea Volcano began to feel a series of earthquakes.  They were small, and some could even be mistaken for a strong gust of wind blowing against the house. 

Date published: October 23, 2020

Kīlauea Information Statement

Kīlauea Volcano is not erupting. A small swarm of shallow seismicity over the past 24 hours has occurred near the Ka‘ōiki fault system, northwest of Kīlauea's summit. Other Kīlauea monitoring data streams remain stable and show no signs of increased activity.

Date published: October 22, 2020

Volcano Watch — Charcoal, a game changer for understanding processes in young volcanic terraines

One of the fundamental premises of geology is that the "key to understanding the future is to understand the past."  In order to forecast how a volcano will behave, geologists must map the deposits from past eruptions and determine the ages of those deposits. Radiocarbon dating is our principal tool of use.

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