Earthquakes in Seychelles through history
USGS recorded no earthquake of magnitude 6 or more in Seychelles from 1900 to October 19, 2026. NOAA’s record here begins on December 26, 2004 with a tsunami (Off W. Coast Of Sumatra).
The last 30 days · as of
USGS recorded no earthquake of magnitude 4.5 or more in the area the map frames in the last 30 days.
What the record holds
NOAA lists one tsunami from elsewhere that reached Seychelles with deaths or a metre of water or more. The highest water NOAA records here was 4.4 m, on December 26, 2004. The deadliest here came on December 26, 2004 from a magnitude 9.1 earthquake (Off W. Coast Of Sumatra): NOAA’s runup records count 2 deaths in Seychelles.
The events
Good to know
- An event counts for Seychelles when it began inside its borders. Damage can reach across them.
- USGS counts here start at magnitude 6: the catalogue’s smaller quakes thin out going back, where few instruments listened.
- NOAA lists significant events only: earthquakes that killed, did about $1 million of damage, reached magnitude 7.5 or intensity X, or raised a tsunami, and eruptions and tsunamis by like measures. Magnitudes before 1900 are its estimates from written accounts.
- Deaths are NOAA’s total for each event, wherever people died, its tsunami and fires included. A tsunami counts the dead its runup records give for this place: NOAA’s total for a tsunami includes its source quake’s.
- A tsunami from elsewhere counts where one of its runups killed or rose a metre or more.
- The map frames the box around Seychelles, its neighbours’ quakes included, so its count runs higher than this page’s.
- Counted to October 19, 2026, as is the map. The last 30 days ask USGS again.
How the layers work, where their data comes from and what they can’t tell you: Earthquakes, live, The world through history