California earthquakes in 1931
9 earthquakes of magnitude 2.5 or more were located in California in 1931. The largest: M5.9 9 km S of Leggett, California, Sep 9, 1931.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1931 was located in California. Select one for its page.
Every quake of 1931
Magnitude 2.5 and up, newest first.
- 5.18 km E of Carmel Valley Village, California
- 5.99 km S of Leggett, California · 15 km deep
- 5.8near the coast of Northern California
- 4.525 km NNW of Fort Jones, California
- 5.7130 km WSW of Ferndale, California · 15 km deep
- 4.83 km SSW of San Luis Obispo, California
- 5.6near the coast of Northern California
- 4.79 km SW of Parkfield, California
- 5.0198 km WSW of Pescadero, California
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1931 | 1 | 5.0 | 198 km WSW of Pescadero, California |
| February 1931 | 1 | 4.7 | 9 km SW of Parkfield, California |
| March 1931 | 1 | 5.6 | near the coast of Northern California |
| April 1931 | 0 | ||
| May 1931 | 0 | ||
| June 1931 | 0 | ||
| July 1931 | 1 | 4.8 | 3 km SSW of San Luis Obispo, California |
| August 1931 | 1 | 5.7 | 130 km WSW of Ferndale, California |
| September 1931 | 3 | 5.9 | 9 km S of Leggett, California |
| October 1931 | 0 | ||
| November 1931 | 0 | ||
| December 1931 | 1 | 5.1 | 8 km E of Carmel Valley Village, California |
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.
- 2020s2020202120222023202420252026
- 2010s2010201120122013201420152016201720182019
- 2000s2000200120022003200420052006200720082009
- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
- 1960s1960196119621963196419651966196719681969
- 1950s1950195119521953195419551956195719581959
- 1940s1940194119421943194419451946194719481949
- 1930s1930193119321933193419351936193719381939
- 1920s1920192119221923192419251926192719281929
- 1910s1910191119121913191419151916191719181919
- 1900s1900190119021903190419051906190719081909
Nearby
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.