https://www.usgs.gov/publications/modified-mercalli-intensity-scale-1931
Modified Mercalli intensity scale of 1931 | U.S. Geological Survey
modified mercalli intensityscale1931ugeological
https://www.usgs.gov/publications/empirical-modified-mercalli-intensity-site-corrections-towns-eastern-north-america
Empirical modified Mercalli intensity site corrections for towns in eastern North America | U.S....
Modified Mercalli intensity (MMI) assignments for earthquakes in eastern North America (ENA) were used by Bakun et al. (2003) and Bakun and Hopper (in press)...