Alaska earthquakes in 1931
12 earthquakes of magnitude 2.5 or more were located in Alaska in 1931. The largest: M6.3 16 km WNW of Happy Valley, Alaska, Dec 23, 1931.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1931 was located in Alaska. Select one for its page.
Every quake of 1931
Magnitude 2.5 and up, newest first.
- 6.316 km WNW of Happy Valley, Alaska · 100 km deep
- 5.670 km W of Paxson, Alaska
- 5.868 km NNE of Nikolski, Alaska · 75 km deep
- 6.075 km SE of Nikolski, Alaska
- 5.7122 km WSW of Adak, Alaska · 35 km deep
- 5.865 km NNE of Attu Station, Alaska · 25 km deep
- 6.072 km S of Attu Station, Alaska
- 5.644 km S of Cantwell, AK
- 5.765 km WNW of Nikolski, Alaska · 15 km deep
- 6.0119 km SSW of Nikolski, Alaska · 15 km deep
- 6.0229 km SSW of Nikolski, Alaska
- 5.617 km W of Whittier, Alaska
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1931 | 1 | 5.6 | 17 km W of Whittier, Alaska |
| February 1931 | 0 | ||
| March 1931 | 3 | 6.0 | 229 km SSW of Nikolski, Alaska |
| April 1931 | 0 | ||
| May 1931 | 3 | 6.0 | 72 km S of Attu Station, Alaska |
| June 1931 | 0 | ||
| July 1931 | 1 | 5.7 | 122 km WSW of Adak, Alaska |
| August 1931 | 2 | 6.0 | 75 km SE of Nikolski, Alaska |
| September 1931 | 0 | ||
| October 1931 | 1 | 5.6 | 70 km W of Paxson, Alaska |
| November 1931 | 0 | ||
| December 1931 | 1 | 6.3 | 16 km WNW of Happy Valley, Alaska |
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.