KILAUEA, BIG ISLAND (KHNL)- As of 5 p.m. Monday, the U.S. Geological Survey said Kilauea is acting up again.
The quakes subsided earlier in the afternoon.
It's this volatile nature of the volcano that has scientists intrigued.
Young Kilauea is having growing pains, triggering more than 300 tremors in 2 days.
"It's always very exciting, an adrenaline rush because there might be potential for new eruptive activity," says Cindy Orlando, Superintendent of Hawai'i Volanoes National Park.
"There's still the possibility that lava could break to the surface," says Jim Kauahikaua, USGS Lead Scientist.
Kauahikaua says magma beneath Kilauea's surface is moving, causing the earth to move, and the ground to crack.
Monday morning, crews discovered a long crack on Chain of Craters Road. It's about one to two inches wide but if you follow it down about 5 miles towards Mauna Ulu, the crack opens up to 10 inches wide.
Most of Hawai'i Volcanoes National Park was temporarily closed Sunday, but park rangers reopened some areas to park visitors on Monday due to seismic activity subsiding.
"We feel comfortable opening up Crater Rim Road. The rest of the park, Chain of Craters Road down to the eruption site does remain closed. We still have some potential for some danger in those areas," says Orlando.
Dangerous, but an exciting time for those keeping a close eye on the world's most active volcano.
The USGS says the chances of Kilauea erupting in a new area of the park decreases as the earthquakes die down.