New cracks form on Highway 130

Residents evacuate as lava overruns Hookupu Street on Monday, May 7, 2018, in Leilani Estates. Kilauea volcano has destroyed homes and spewed lava hundreds of feet into the air, leaving evacuated residents unsure how long they might be displaced. (Jamm Aquino/Honolulu Star-Advertiser via AP)

In this photo taken from video an unidentified man gets close to a lava flow advancing down a road in the Leilani Estates on Monday, May 7, 2018. Kilauea volcano has destroyed more than two dozen homes since it began spewing lava hundreds of feet into the air last week, and residents who evacuated don't know how long they might be displaced. (Scott Wiggers/Apau Hawaii Tours via AP)

As new volcanic fissures crossed the edges of Leilani Estates on Monday, new cracks on surrounding roads threaten to shut down large stretches of highways around Pahoa.