Hawaii’s Kīlauea volcano is once again showing an increase in activity.

There have been increased earthquakes and ground deformation at the summit of the volcano ever since the early hours of January 31, an update from the USGS Hawaiian Volcano Observatory said.

For this reason, the volcano’s alert level has been raised from yellow to orange, prompting scientists to keep a close eye on the volcano.

“At this time, it is not possible to say with certainty if this activity will lead to an eruption; the activity may remain below ground. However, an eruption in Kilauea’s summit region, within Hawai’i Volcanoes National Park and away from infrastructure, is one potential outcome,” the update said.