November 9, 1963 Earthquake: Acre, Brazil

Name: November 9, 1963 Earthquake: Acre, Brazil
Start: 1963-11-09
Location: Acre, Brazil

November 9, 1963 · M7.6

A magnitude 7.6 earthquake struck Acre, Brazil on November 9, 1963 at 21:15:32 UTC, 590 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 9, 1963
Time: 21:15:32 UTC
Place: Acre, Brazil
Magnitude: 7.6 (Mw)
Focal depth: 590 km (367 mi)
Tsunami: None recorded
Epicenter: 9.127° S, 71.483° W
Country: Brazil

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.

reference #10476 (version 9.1)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

Significant earthquakes of 1963 The 1900s Every quake the USGS located in 1963 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 10644.