Earthquakes United States 1977
United States was hit by 235 earthquakes with a magnitude of 4 and more in 1977. The biggest earthquake in United States for 1977 had a magnitude of 6.3 (5/30/1977)
4.5
1977-03-28
4.5
1977-04-20
4.5
1977-04-21
4.5
1977-01-20
4.5
1977-01-13
4.5
1977-02-04
4.5
1977-09-07
4.5
1977-09-15
4.5
1977-09-19
4.5
1977-08-27
Earthquakes Map United States 1977
Earthquakes Chart United States 1977
| Month | Number of hits |
| January 1977 | 21 |
| February 1977 | 15 |
| March 1977 | 23 |
| April 1977 | 26 |
| May 1977 | 13 |
| June 1977 | 23 |
| July 1977 | 25 |
| August 1977 | 22 |
| September 1977 | 19 |
| October 1977 | 15 |
| November 1977 | 18 |
| December 1977 | 15 |