Tuesday, August 22, 2006
Kilauea shows signs of possible upcoming eruption
While this bulge isn't cause for immediate concern, he says some bulges result in eruptions after several decades. The bulge has lifted the volcano four-point-three inches since earlier this year. The bulge is caused by magma swelling into a reservoir beneath the surface. As it builds up, the reservoir inflates, causing the ground around it to crack.