Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown
Data and Tools
RTD - Geomagnetism
Geomagnetism
View graphs of real-time magnetic data from USGS and partner observatories and download historical definitive data.
Geomagnetism Plots
Real-time display of USGS geomagnetic observatory data feeds and derived products.
Download Real-Time Data
Download real-time and definitive data and indices from USGS geomagnetic observatories.
Magnetic Disturbance Events
View reports on magnetic disturbance events.
Models
View and download model results from magnetic studies.
Real-Time Disturbance Storm Time (Dst) Display
Real-time Dst data from USGS observatories as well as other world partners.
Magnetic Disturbance Movies
Movie-maps of low-latitude horizontal-intensity magnetic disturbance are derived from magnetic vector time series data collected at multiple ground-based observatories. Using a technique similar to that used in the calculation of Dst, a quiet time baseline is subtracted from the time series from each observatory. The remaining disturbance time series are shown in a polar coordinate system that...
Real-Time HEZF Display
Real-time HEZF index display from USGS geomagnetic observatories internet feeds without filling gaps with satellite data