September 4, 1989 Earthquake: Alaska, United States
A magnitude 6.9 earthquake struck Alaska, United States on September 4, 1989 at 13:14:58 UTC, 11 km below the surface. 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
- September 4, 1989
- Time
- 13:14:58 UTC
- Place
- Alaska, United States
- Magnitude
- 6.9 (Ms)
- Focal depth
- 11 km (7 mi)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 55.543° N, 156.835° W
- Country
- United States
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.
Felt (V) at Chignik, Chignik Lagoon and Port Heiden; (IV) at Perryville, Sand Point and Togiak; (III) at Egegik, Homer, King Cove, Pilot Point and Unalaska; (II) at King Salmon. Also felt at Cold Bay and Kenai. Two events about 2.5 seconds apart. (reference #1053)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
More
Significant earthquakes of 1989The 1900sEvery quake the USGS located in 1989Recent earthquakes near hereThis day in weather history
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 6475.