Urgent disaster investigation in Iwaki City, Fukushima prefecture - Shallow geophysical survey at a site of caving and water flooding in an old coal mine area -
Abstract
In the area which the site of caving and water flooding disaster in an old coal mine area, GPR, Surface wave exploration and EM mapping are carried out in Iwaki City. We examined the underground structure leading to caving and flooding and influences area of caving using shallow geophysical survey technique.