October 1, 2003 Earthquake: Kosh-Agach, Barnaul, Gorno-Altaysk, Russia

Name: October 1, 2003 Earthquake: Kosh-Agach, Barnaul, Gorno-Altaysk, Russia
Start: 2003-10-01
Location: Kosh-Agach, Barnaul, Gorno-Altaysk, Russia

October 1, 2003 · M6.7

A magnitude 6.7 earthquake struck Kosh-Agach, Barnaul, Gorno-Altaysk, Russia on October 1, 2003 at 01:03:25 UTC, 10 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: October 1, 2003
Time: 01:03:25 UTC
Place: Kosh-Agach, Barnaul, Gorno-Altaysk, Russia
Magnitude: 6.7 (Mw)
Focal depth: 10 km (6 mi)
Tsunami: None recorded
Epicenter: 50.211° N, 87.721° E
Country: Russia

The toll

Damage: Limited (under about $1 million)
Houses damaged: Few (about 1 to 50)

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.

Additional damage and landslides occurred in the Kosh-Agach area previously affected by the earthquake on September 27 at 11:33 UTC. Some minor damage to buildings at Barnaul and

Gorno-Altaysk. Felt (VI) at Aktash; (IV) at Mugur-

Aksy; (III) at Novosibirsk, Omsk, Tomsk, Krasnoyarsk,

Kemerovo, Nizhnevartovsk; (II) at Kyzyl. Felt at

Belokurikha, Novokuznetsk and Sayanogorsk. Also felt

at Ust'-Kamenogorsk, Kazakhstan. (reference 31053)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

Significant earthquakes of 2003 The 2000s Every quake the USGS located in 2003 Recent earthquakes near here This 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 5728.