1809 Earthquake: Guam, US Territories
An earthquake struck Guam, US Territories in 1809. It caused a tsunami.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- 1809
- Place
- Guam, US Territories
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 14.000° N, 143.300° E
- Country
- US Territories
The toll
The record gives no deaths, injuries or damage for this earthquake.
What the record says
NCEI’s account, from the sources it cites.
1809. A violent earthquake occurred. Ships at sea experienced shocks near Guam. Major earthquakes were reported in 1809, 1822, 1825, 1834, 1837, (Degraz, 1838)... Degraz (1838) reported that in the month of October 1837, an extraordinary movement of the sea was experienced. A type of tempest disturbed it and it flooded raised portions of the banks, caused landslides and considerable damage. This was also a year of a reported major earthquake. He also reported similar movements for the 1809 and 1825 events where some ships experienced violent shocks near Guam. (reference #482)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- April 1825, Ladrones Island, Guam, Northern Mariana Islands, US Territories
- May 1834, Agana, Guam, US Territories
- January 25, 1849, Guam, US Territories
- May 16, 1892, Guam, US Territories
- February 10, 1903, Guam, US Territories
- November 1, 1975, Guam, US Territories
- April 23, 1997, Guam, US Territories
- April 26, 2002, Guam, US Territories
- August 8, 1993, Tuman Bay, Apra Harbor, Guam, US Territories
More
Significant earthquakes of 1809The 1800sRecent earthquakes near here
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. NCEI earthquake 9927.