Significant Earthquakes of 991
Every significant earthquake NOAA records in 991.
Map
The significant earthquakes of 991. Circles are sized and colored by magnitude; select one for its page.
Every earthquake
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24.