All earthquakesMissouri

Missouri earthquakes in 1940

The USGS located no earthquake of magnitude 2.5 or more in Missouri in 1940, out of 491 worldwide.

From the USGS catalog. Times are local to each quake.

19391941

Map

Where every quake of 1940 was located in Missouri. Select one for its page.

Open the live map with earthquakes

Every quake of 1940

Magnitude 2.5 and up, newest first.

None of magnitude 2.5 or more. Missouri’s quakes that year, if any, were smaller than the catalog lists here.

What this means

The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.

By year

Every year the USGS catalog covers.

Nearby

Missouri nowWorldwide in 1940

Sources

Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.