TY - BOOK AU - Hough, Susan Elizabeth, CN - I 19.76: CY - [Menlo Park, CA] : CY - [Denver, Colo. : DA - 1999. ID - 256094 KW - Earthquakes N1 - Shipping list no.: 2002-0124-M. PB - U.S. Geological Survey ; PB - Branch of Information Services, distributor], PP - [Menlo Park, CA] : PP - [Denver, Colo. : PY - 1999. T1 - On the modified Mercalli intensities and magnitudes of the 1811/1812 New Madrid, central United States, earthquakes TI - On the modified Mercalli intensities and magnitudes of the 1811/1812 New Madrid, central United States, earthquakes VL - 99-565 ER -