Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

HVO is dedicated to studying and monitoring the active volcanoes on the Hawaiian Islands ... carry a sufficient amount of ...

The largest active volcano in the world began erupting overnight on Hawaii’s big island where ... be prepared in case it does erupt soon. This map shows the lava flow hazard level zones for ...

Hawaii Volcanoes National Park Hikes will put you in the heart of this park's (Or Pele's) fiery past, present, and futu ...

Scores of small earthquakes — the largest at magnitude 4.3 — rumbled along the Kama‘ehuakanaloa undersea volcano southeast of ...

Tiltmeters are a crucial component of the volcanic monitoring network in Hawaii. By detecting subtle changes in ground ...