Real-Time Geomagnetic Data - Test
Below
is a map showing the USGS Geomagnetism Program observatory network.
Click
on the observatory name, or choose an observatory from our observatories page, for a profile of each observatory.
BRW
Barrow
BOU
Boulder
CMO
College
DLR
Del Rio
FRD
Fredericksburg
FRN
Fresno
GUA
Guam
HON
Honolulu
NEW
Newport
SJG
San Juan
SHU
Shumagin
SIT
Sitka
BSL
Stennis
TUC
Tucson
View Preliminary Data
A graphical display of preliminary data (updated every 30 minutes) for all observatories is available.
Please select a day to view:
Obtaining Recent Preliminary Data
The USGS Geomagnetism Program operates a downlink center in Golden, Colorado for the reception of geomagnetic observatory data via satellite and electronic file exchange. Golden is a Geomagnetic Information Node or GIN, which, as a member of Intermagnet, is one of several GINs located around the world.
Intermagnet data, which include those from USGS observatories, are available through the Intermagnet website on their Intermagnet Data Download page.
Contacts
For requests for Intermagnet CDs, and older USGS CDs, all of which are free of charge:
Jill E Caldwell
jcaldwell@usgs.gov
For general enquiries about USGS Geomagnetism Program data, including specialized requests for USGS data:
Duff C Stewart
dcstewart@usgs.gov