Kiyoo Mogi

He went on to chair the ECA from 1991 until he resigned from the post in 1996 after failing to persuade the government of the need to take uncertainty into account when issuing warnings.

[5] Following damage at the Kashiwazaki-Kariwa Nuclear Power Plant due to the 2007 Chūetsu offshore earthquake, Mogi called for the immediate closure of the Hamaoka Nuclear Power Plant,[2][3] which was built close to the centre of the expected Tōkai earthquake despite his 1969 prediction.

Previously, in 2004, he had stated that the issue 'is a critical problem which can bring a catastrophe to Japan through a man-made disaster'.

[5] In 1969, Mogi proposed a hypothesis for earthquake prediction, now known as the 'Mogi doughnut hypothesis', that major earthquakes tend to occur in an unusually seismically calm area surrounded by a ring of unusually high seismic activity.

[11] After studying data from several sources, he concluded that a mathematical solution developed by Yamakawa in 1955[12] could be used in the modelling of the deformation of a volcano caused by pressure changes in its magma chamber.