However, the decrease relates only to small magnitude earthquakes, but showed little to no effect on larger magnitude earthquakes, over a 3 ranking. (sciencedaily.com)
For 1400, all indicate > warming but with smaller magnitude than the 20th > century. (climateaudit.org)
However, in East Africa most of this seismicity is spread over a wide zone across the rift valley and is of relatively small magnitude. (bigthink.com)