EQNEWS / Seismo-Watch Newsletter

Cover Photograph: 1891 Nibo 8.0 Earthquake

On October 28, 1891, a powerful earthquake rocked central Japan. The Nobi earthquake measured M 8.0 and registered shaking intensities of X-XII on the Modified Mercalli Intensity Scale (a relative shaking intensity scale from 1-12 shown in Roman numerals). The quake ruptured many faults in the Nobi fault system but principal displacement occurred along the Neodani fault. More than 70 km (44 miles) of right-lateral, dip-slip rupture was recorded, with maximum offsets of 8 m (26 ft) horizontal and 6 m (20 ft) vertical. The cover photograph is taken near the village of Midori in the Neo Valley where the Neodani fault produced its maximum vertical displacements. Note a person along the road for scale.

Image: Steinbrugge Collection, EERC, University of California, Berkeley.

 


Rev. Nov. 13, 1996