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Geomagnetic disturbance alert - 10th/11th September 2014

There is an increased chance of a geomagnetic disturbance on 12th September due to the arrival at Earth of two coronal mass ejections (CMEs) seen leaving the Sun on the 9th and 10th September 2014.

More information on the alert.

GeoSocial Aurora - share your aurora sightings!

Share your aurora sightings with us through a new mapping tool GeoSocial - Aurora!

Tweet your geo-located sightings and see them displayed on the map for others to see!

Read more about how GeoSocial may help aurora prediction.

Geomagnetism Review 2013

Read our review of the Geomagnetism Team's activities in 2013.

Grid Magnetic Angle calculator

Something interesting is happening to the magnetic field in Great Britain this year. Find out what!

Try out our grid magnetic angle calculator to correct between magnetic bearings and map bearings.

Sign-up for geomagnetic disturbance alerts

When we predict an increase in magnetic activity we send out a geomagnetic disturbance alert.
Notice of a potential magnetic storm increases your chance of seeing the Northern Lights!

Sign up for alerts by email or Twitter.

Latest News


About BGS Geomagnetism

The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields.

Our data and expertise help to develop scientific understanding of change in the Earth and the environment, from deep within the core out into space.

We also provide geomagnetic products and services to industry and to academic colleagues and we use our knowledge for information and education.


Research

Modelling the Earth's magnetic field, space weather hazards.

Operations

About our magnetic observatory operations, UK surveying, equipment.

Data and Services

Observatory data, indices, models, charts, applications.

Education

Overviews of the Earth's magnetic field, reversals, magnetic poles.

Global activity now!

Find out what the current global geomagnetic activity level is.