There probably wasn't a significant Greek earthquake of 856, but there was an Iran earthquake on 22 December 856 that killed 200,000 people. It was probably strongly felt throughout the region, and many people may have thought it occurred near them. See US Geological Survey National Earthquake Information Center Most Destructive Earthquakes at http://earthquake.usgs.gov/regional/world/most_destructive.php
No, "seismo" is not a Greek prefix. The Greek prefix for earthquake is "seismo-." In Greek, "seismos" means earthquake, so "seismo-" is used as a prefix in words related to earthquakes or seismic activity.
seismo-, seism-, -seism, -seisms, -seisma, -seismically, -seismical, -seismal, & -seismic
it means Quake, as in seismograph, measure quakes like earthquakes. :)
The epicenter of the earthquake was New York city.
there
The Greek word for earthquake is "σεισμός" (seismos).
No, "seismo" is not a Greek prefix. The Greek prefix for earthquake is "seismo-." In Greek, "seismos" means earthquake, so "seismo-" is used as a prefix in words related to earthquakes or seismic activity.
Greatest: 856 Smallest: 1
Σεισμός [seesmos]
earthquake.
seismo-, seism-, -seism, -seisms, -seisma, -seismically, -seismical, -seismal, & -seismic
856 + 258 = 1114
856 + 100 = 956
985 + 856 = 1841
856 ÷ 2 = 428
Yes. 856 / 4 = 214
It is: 856 = DCCCLVI