A world map shows nitrate mining locations marked by orange circles with "N." Key areas include the U S, Mexico, Chile, and Spain. Major clusters are in the U S (western states), Mexico, and northern Chile's Atacama Desert.
Nitrate Mines | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | Earthquakes | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | |||||||||||||||||||||
| 27.5 | 1 | |||||||||||||||||||||
| 1 | 1 | |||||||||||||||||||||
| 2.5 | 2 | |||||||||||||||||||||
| 1 | ||||||||||||||||||||||
| 1 | 1 | |||||||||||||||||||||
| 20 | 1 | 1 | 1 | |||||||||||||||||||
| 1 | ||||||||||||||||||||||
| 13.5 | 1.5 | 1 | ||||||||||||||||||||
| 1 | 2 | |||||||||||||||||||||
| 3.5 | ||||||||||||||||||||||
| 1 | 1 | |||||||||||||||||||||
0.16.0