Earthquakes in Guam are infrequent but are often accompanied by tsunami. The small island, which is an unincorporated and organized territory of the United States, lies at the extreme southern end of the Mariana Islands and at the eastern margin of the Philippine Sea Plate.
| Date | Region | Mag. | MMI | Deaths | Injuries | Comments | ||
|---|---|---|---|---|---|---|---|---|
| April 1825 | VIII | Moderate damage / tsunami | NGDC 1972 | |||||
| May 1834 | Moderate damage | NGDC 1972 | ||||||
| 1849-01-25 | 7.5 | IX | Some | Severe damage / tsunami | NGDC 1972 | |||
| 1892-05-16 | 7.5 Ms | VIII | Moderate damage / tsunami | NGDC 1972 | ||||
| 1902-09-22 | 8.1 Ms | IX | Few | Severe damage | NGDC 1972 | |||
| 1903-02-10 | VII | Minimal damage / tsunami | NGDC 1972 | |||||
| 1909-12-09 | 8.0 | VIII | Moderate damage / tsunami | NGDC 1972 | ||||
| 1975-11-01 | 6.1 Mb | VII | Minimal damage / tsunami | NGDC 1972 | ||||
| 1993-08-08 | 7.8 Mw | IX | 48–71 | $250 million in damage / non-destructive tsunami | ||||
| 1997-04-23 | 6.5 Mw | VII | 4 | Some damage | [1] | |||
| 2001-10-12 | 7.0 Mw | VII | 1 | Some damage | [2] | |||
| 2002-04-26 | 7.1 Mw | VII | 5 | Minor damage | [3] | |||
| Note: The inclusion criteria for adding events are based on WikiProject Earthquakes' notability guideline that was developed for stand alone articles. The principles described also apply to lists. In summary, only damaging, injurious, or deadly events should be recorded. | ||||||||