US Earthquake Activity by State
M4+ earthquake activity across 38 US states and territories (2005-2025). Data from USGS.
| # | State | Total | M6+ | Max | Avg Mag |
|---|---|---|---|---|---|
| 1 | Alaska | 8,804 | 110 | 7.9 | 4.5 |
| 2 | Northern Mariana Islands | 3,295 | 19 | 7.7 | 4.5 |
| 3 | Guam | 2,421 | 6 | 6.8 | 4.5 |
| 4 | California | 863 | 8 | 7.2 | 4.4 |
| 5 | Puerto Rico | 293 | 3 | 6.4 | 4.4 |
| 6 | Oregon | 260 | 5 | 6.3 | 4.5 |
| 7 | U.S. Virgin Islands | 212 | 1 | 6.1 | 4.3 |
| 8 | Hawaii | 198 | 4 | 6.9 | 4.4 |
| 9 | Nevada | 158 | 0 | 5.9 | 4.4 |
| 10 | Oklahoma | 97 | 0 | 5.8 | 4.3 |
| 11 | Idaho | 73 | 1 | 6.5 | 4.3 |
| 12 | Georgia | 66 | 1 | 6.0 | 4.5 |
| 13 | Texas | 51 | 0 | 5.4 | 4.4 |
| 14 | New Mexico | 35 | 0 | 5.4 | 4.3 |
| 15 | Montana | 28 | 0 | 5.8 | 4.3 |
| 16 | Utah | 25 | 0 | 5.7 | 4.3 |
| 17 | American Samoa | 24 | 0 | 5.8 | 4.7 |
| 18 | Washington | 17 | 0 | 4.7 | 4.3 |
| 19 | Wyoming | 13 | 0 | 4.8 | 4.3 |
| 20 | Kansas | 12 | 0 | 4.9 | 4.3 |
| 21 | Colorado | 11 | 0 | 5.3 | 4.3 |
| 22 | Arizona | 7 | 0 | 5.3 | 4.5 |
| 23 | Arkansas | 5 | 0 | 4.7 | 4.2 |
| 24 | Virginia | 5 | 0 | 5.8 | 4.6 |
| 25 | Louisiana | 4 | 0 | 5.3 | 4.6 |
| 26 | Tennessee | 3 | 0 | 4.4 | 4.2 |
| 27 | Illinois | 3 | 0 | 5.2 | 4.6 |
| 28 | Nebraska | 2 | 0 | 4.1 | 4.1 |
| 29 | Kentucky | 1 | 0 | 4.2 | 4.2 |
| 30 | Maine | 1 | 0 | 4.7 | 4.7 |
| 31 | South Carolina | 1 | 0 | 4.1 | 4.1 |
| 32 | Michigan | 1 | 0 | 4.2 | 4.2 |
| 33 | Delaware | 1 | 0 | 4.1 | 4.1 |
| 34 | Ohio | 1 | 0 | 4.0 | 4.0 |
| 35 | Maryland | 1 | 0 | 4.6 | 4.6 |
| 36 | North Carolina | 1 | 0 | 5.1 | 5.1 |
| 37 | Missouri | 1 | 0 | 4.0 | 4.0 |
| 38 | Florida | 1 | 0 | 4.0 | 4.0 |