Yomiuri: Was 869 Tohoku quake Japan's strongest?
The Jogan Sanriku Earthquake of 869 may have been the strongest seismic disturbance ever to strike Japan, a joint research team of Osaka City University, Tohoku University, Tokyo University and others reported Thursday. The finding, based on evidence that traces of the tsunami following the quake impacted a wider area than previously thought, was revealed at a meeting of the Japan Society of Engineering Geology being held in Osaka...According to a previous study, traces of the damage were found from Miyagi Prefecture to Fukushima Prefecture. However, in the most recent study, the researchers found evidence of damage in Iwate Prefecture, leading them to believe the earthquake that caused the tsunami might have measured around a magnitude of 9, stronger than the magnitude 8.6 Hoei Earthquake of 1707, which was previously believed to have been the country's strongest quake...more...
There are obviously no pictures of the 869 quake but we have gboothe and I'm sure he remembers it.
