Significant earthquakes of 1977

January 31, 1977 Earthquake: Tajikistan

January 31, 1977 · M5.9

A magnitude 5.9 earthquake struck Tajikistan on January 31, 1977 at 14:26:14 UTC, 20 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
January 31, 1977
Time
14:26:14 UTC
Place
Tajikistan
Magnitude
5.9 (Ms)
Magnitude scales
Ms 5.9 · mb 6.1 · Unspecified 5.9
Focal depth
20 km (12 mi)
Tsunami
None recorded
Epicenter
40.040° N, 70.850° E
Country
Tajikistan
Region
Central Asia and Caucasus

Ms: surface-wave magnitude. mb: body-wave (P-wave) magnitude. Unspecified: the method was not stated in the published sources. NCEI’s headline magnitude is the best of these for the earthquake.

The toll

Damage
Moderate (about $1 to $5 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.

Magnitude estimates

The magnitudes the USGS catalog lists for this earthquake, by scale and by who computed them. NCEI’s own scales are in the table above.

Mag.ScaleComputed byNotes
6.1mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed
5.99Mw, momentISC-GEM global catalogFinal · ±0.1
6.0Mwc, centroid momentGlobal CMT projectPreliminary

Sources NCEI cites

The publications NCEI lists for this record. The numbers match the “reference #” notes in its account above.

  1. #1140 U.S. Geological Survey. Earthquake Information Bulletin, a bimonthly U.S. Geological Survey publication; H. Spall, editor.
  2. #1053 National Earthquake Information Center (NEIC) (1971 to 2013). Preliminary Determination of Epicenters (PDE), a weekly and monthly publication, National Earthquake Information Center, U.S. Geological Survey, Golden, Colorado, 1971 to 2013.

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1977The 1900sEvery quake the USGS located in 1977Recent 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 2026-10-01. NCEI earthquake 4759. The written accounts and the magnitude estimates are from the USGS earthquake catalog, event usp0000me4, matched to this record by time, place and magnitude.