A fissure on Kilauea Volcano on the Big Island of Hawaii sent lava spewing more than 60 feet into the air recently, and scientists continued to monitor the activity closely.

Eruptions at a Hawaiian volcano have forced officials to close off part of a national park to visitors while geologists monitor eruptions and other seismic activity in the area.

Hawaii's Kilauea volcano seems to be active again, with molten lava moving around 300 feet under the crater's floor.

From June 17-19th 2007, Kilauea experienced a new dike intrusion, where magma rapidly moved from a storage reservoir beneath the summit into the east rift zone and extended the rift zone by as much as 1 meter.

The strongest and most destructive types of earthquakes - like Sunday's magnitude-6.7 that caused blackouts and landslides - are rare and are caused not by eruptions, but by the buildup of stress deep in the crust as volcanoes grow and spread, experts say.