TY  - RPRT
TI  - 2018 update to the U.S. Geological Survey national volcanic threat assessment
AU  - John W. Ewert
AU  - Angela K. Diefenbach
AU  - David W. Ramsey
PY  - 2018
DO  - 10.3133/sir20185140
UR  - https://pubs.usgs.gov/publication/sir20185140
ID  - sir20185140
ER  -