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Key to the list of earthquakes

 
yyyy/mm/dd
Year, month and day in which happened the earthquake. Origin time of earthquake in universal time (GMT). 
hh:mm:ss.ss
Hour, minutes and seconds in which happened the earthquake. Origin time of earthquake in universal time (GMT). 
lat.itu
Latitude of the epicenter of the earthquake. - is used to specify the south. 
lon.git
Longitude of the epicenter of the earthquake. - is used to specify the west. 
dep.t
Depth of the earthquake in kilometers. 
m.1
Amplitude magnitude calculated with revised formula of Bataille and von Hillebrandt (1993). In summer 2004 the localization program was updated and since that moment the Eaton (1992) equations is used. 
m.2
CODA duration magnitude calculated with revised formula of Bataille and von Hillebrandt (1993). In summer 2004 the localization program was updated and since that moment the Eaton (1992) equations is used. 
Agen
Agencies or seismic network that reported the earthquake.
They are:
  1. RSPR or PRSN - Puerto Rico Seismic Network
  2. USGS - United States Geological Survey
  3. SaE - Sykes and Ewing
 
rms
Root Mean Square travel time residual, taking into consideration the residual weights. 
erh
Horizontal error in kilometers. 
erz
Vertical error in kilometers. 
Gap
Largest azimuthal gap between azimuthally adjacent stations. 
Q
Quality of an earthquake location which is determined taking into consideration the rms, erh, erz, number of stations used and their geographical distribution; where A is excellent and D is poor. 
Re
Regions for 1986/01/07 to 2004/07/04:
  1. Puerto Rico Trench
  2. North of Puerto Rico
  3. Mona Canyon
  4. Mona Passage
  5. Northern Puerto Rico
  6. Central Puerto Rico
  7. Western Puerto Rico
  8. Eastern Puerto Rico
  9. Southern Puerto Rico
  10. South of Puerto Rico
  11. Virgin Islands
  12. Muerto Through
  13. East of Dominican Republic
  14. North of Puerto Rico Region
  15. South of Puerto Rico Region
  16. East of Puerto Rico Region
  17. West of Puerto Rico Region
  18. Northwest of Puerto Rico Region
  19. Northeast of Puerto Rico Region
  20. Southeast of Puerto Rico Region
  21. Southwest of Puerto Rico Region
  22. Out of bound
Regions for 2004/07/04 to the present day:
  1. Central Puerto Rico
  2. South Puerto Rico
  3. Southeast Puerto Rico
  4. East Puerto Rico
  5. Northeast Puerto Rico
  6. North Puerto Rico
  7. Northwest Puerto Rico
  8. West Puerto Rico
  9. Southwest Puerto Rico
  10. Southern Puerto Rico
  11. Western Puerto Rico
  12. Northern Puerto Rico
  13. Eastern Puerto Rico
  14. Puerto Rico Trench
  15. Muertos Trough
  16. Leeward Islands
  17. Saint Croix Basin
  18. Saint Croix Ridge
  19. Eastern Dominican Republic
  20. Septentrional Fault Zone
  21. Mona Passage
  22. Mona Canyon
  23. 19° N Fault Zone
  24. Sombrero Fault Zone
  25. Virgin Island Platform
  26. Saint Croix
  27. Virgin Island Basin
  28. Anegada Passage
  29. Out of bound

* The Puerto Rico region includes the latitudes between 17.00° N and 20.00° N and the longitudes between 63.50° W and 69.00° W, that includes Puerto Rico, the North American and British Virgin Islands, and the East of the Dominican Republic.
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