Earthquakes United States 1999
United States was hit by 317 earthquakes with a magnitude of 4 and more in 1999. The biggest earthquake in United States for 1999 had a magnitude of 7.2 (10/16/1999)
4.2
1999-10-17
4.2
1999-10-19
4.2
1999-10-17
4.2
1999-10-10
4.2
1999-09-20
4.2
1999-09-01
4.2
1999-09-07
4.2
1999-08-27
4.2
1999-08-15
4.2
1999-07-17
Earthquakes Map United States 1999
Earthquakes Chart United States 1999
| Month | Number of hits |
| January 1999 | 25 |
| February 1999 | 22 |
| March 1999 | 18 |
| April 1999 | 21 |
| May 1999 | 40 |
| June 1999 | 18 |
| July 1999 | 13 |
| August 1999 | 34 |
| September 1999 | 16 |
| October 1999 | 70 |
| November 1999 | 14 |
| December 1999 | 26 |