International Real-time Magnetic Observatory Network

New website at

INTERMAGNET is currently moving many of its web content to We recommend you update your bookmarks accordingly. Over the coming months, INTERMAGNET will deprecate the content from

Welcome to INTERMAGNET - the global network of observatories, monitoring the Earth's magnetic field. At this site you can find data and information from geomagnetic observatories around the world.

The INTERMAGNET programme exists to establish a global network of cooperating digital magnetic observatories, adopting modern standard specifications for measuring and recording equipment, in order to facilitate data exchanges and the production of geomagnetic products in close to real time.

Where local support is lacking it is a further goal of INTERMAGNET to aid in the establishment of new observatories or to provide assistance with the upgrade and maintenance of existing facilities. Supplemental to this aim is the promotion of modern standards for measuring and recording the Earth's magnetic field. INTERMAGNET is constituted from existing groups whose primary task is one of geomagnetic measurement.


ICSU World Data System


IAGA Division V