tephra accumulation for the 31 March 1997 dome collapse at Soufriere Hills Volcano (Montserrat, West Indies) In Bonadonna et al. (2002b) easting northing (kg/m2) 377570 1845620 0.36 376125 1847725 1.03 378950 1846900 7.31 377500 1846725 2.86 376100 1846900 0.98 376125 1847725 1.03 376650 1846225 0.42 377170 1847530 1.73 377440 1849020 1.06 377470 1844725 0.05 376350 1852025 0.37 376175 1852813 0.09 375850 1852700 0.06 376775 1854025 0.11 377350 1854275 0.05 377050 1855475 0.02 377600 1854725 0.02 379150 1855625 0.02 378550 1848425 2.39 379625 1849375 0.32