Significant earthquakes of 2002

November 3, 2002 Earthquake: Slana, Mentasta Lake, Fairbanks, Alaska, United States

November 3, 2002 · M7.9 · $56 million

A magnitude 7.9 earthquake struck Slana, Mentasta Lake, Fairbanks, Alaska, United States on November 3, 2002 at 22:12:41 UTC, 5 km below the surface.

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
November 3, 2002
Time
22:12:41 UTC
Place
Slana, Mentasta Lake, Fairbanks, Alaska, United States
Magnitude
7.9 (Mw)
Focal depth
5 km (3 mi)
Intensity
9 on the Modified Mercalli scale
Tsunami
None recorded
Epicenter
63.517° N, 147.444° W

The toll

Injuries
1
Damage
$56 million

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

November 3, 2002, 22:12:41 UTC, 63.517 N, 147.444 W, depth 7 km, magnitude 7 mb, 8.5 MS, 7.9 Mw. One person injured and extensive damage to roads and bridges. Structural damage occurred in the villages of Slana and Mentasta Lake, minor structural damage occurred at Fairbanks and items were knocked from shelves at Cantwell, Denali National Park, Glenallen, Paxson and Tok. Damage estimated at 20 million U.S. dollars. Some supports on the Trans-Alaska Pipeline were damaged and operation was suspended temporarily. Maximum intensity IX was assigned to areas where surface rupture occurred.

Felt (VIII) at Gakona and (VII) at Cantwell, Denali National Park and Tok. Felt in much of Alaska. Felt (V) in many parts of Yukon Territory and (IV) in parts of northern British Columbia, western Alberta and Northwest Territories. Also felt by people in high-rise buildings in Seattle, Washington.

Surface rupture on the Denali fault and Totschunda fault began about 25 kilometers east of the magnitude 6.7 Oct. 23 foreshock and extended east and southeast for about 300 kilometers to an area east of Nabesna, and had a maximum offset of 8.8 meters near the Tok Cutoff Highway. Landslides, rockslides, ground cracks and snow avalanches were observed in the area of the fault rupture. Liquefaction was observed in the Northway area.

Seiches and muddied water wells were observed in a large number of states, including Washington, Idaho, Louisiana, Oklahoma, Missouri, Wisconsin and Pennsylvania.

(above from reference #1053)

On November 3, 2002, a 7.9 magnitude earthquake centered about 90 mi (144.8 km) south of Fairbanks, Alaska, caused oscillations in water bodies in Southeastern Louisiana (Burdeau 2002 a,b). The earthquake was shallow, and centered about 6 mi (9.6 km) underground on the Denali Fault in Alaska. Sail boats in a marina in Mandeville, Louisiana were reported to have bobbed and broken from their moorings. Water in ponds and pools in the New Orleans area was reported to splash about over a 30-minute period. A minor earthquake was reported in Montegut, Louisiana, by local residents (Bob Jones, per. comm. 2002). It is noteworthy that the effects in south Louisiana were similar to those of the Prince William Sound, Alaska earthquake of March 27, 1964. (reference #13762)

Reference #1295 lists $56 million damage.

Reference #13727 lists $56 million economic loss.

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 2002The 2000sEvery quake the USGS located in 2002Recent 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 5663.