A Rock Fracturing Experiment

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From original video taken 1990-2003 | Audio in Japanese

Ikeya set up a complex rock crushing experiment using 200-1000 ton presses on 25 different rock samples to simulate pre-earthquake stresses on rock. Detectors picked up increasing EM wave emissions and laboratory animals became active and agitated as the strain on the rocks grew


In this video granite, basalt and marble rock specimens (15 x 15 x 30cm) are subject to pressures equating to a M2 earthquake - intended to simulate stresses on rock before a larger earthquake. EM wave emissions and effects on animals are recorded