San Juan (SJG)
| Station Id: | SJG |
|---|---|
| Location: | Cayey, PR |
| Latitude: | 18.1110°N |
| Longitude: | 66.1498°W |
| Geomagnetic Latitude: | 28.31° |
| Geomagnetic Longitude: | 6.08° |
| Elevation: | 424 meters |
| Orientation: | HDZF |
The Geomagnetism Program has operated an observatory at Puerto Rico since 1903. The current observatory site, consisting of 36 acres in the mountains near Cayey, has been in use since 1965.
- A seismometer for the USGS Global Seismic Network.
- A seismometer for the Puerto Rican Seismic Network.
- CTBTO IMS Auxiliary Seismic Station
- NOAA National Geophysical Data Center (NGDC) ionosonde
San Juan magnetic observatory.
Absolutes, variations and proton buildings (left to right) at San Juan magnetic observatory, Cayey, Puerto Rico.
* Pictures courtesy of Jeff Fox
