- Bulletin of the National Science Museum. Series E, Physical sciences & engineering (ISSN:03878511)
- vol.28, pp.1-11, 2005-12
Late in the 19th century two earthquakes struck northeastern Honshu at an interval of two years. The Imperial Earthquake Investigation Committee reported on the 1894 Shonai Earthquake, including many handwritten copies from photographs in the form of blueprints or dry plates, which are now kept in the collection of the National Science Museum. In contrast, fewer photographs of the 1896 Riku-u Earthquake are left in the collections. This was the case for the investigations of the earthquake at that time, although the event showed interesting phenomena in seismology, such as apparent faults. Afterwards, Dr Akitsune Imamura made a report of the Riku-u earthquake, introducing photographs in an album donated from an individual. This rare material is also preserved in the NSM.