USGS science for a changing world

UTC Time

high mid low

Horizontal Magnetic Intensity


black Normal plot
blue Top wrap
purple Bottom wrap
red Spike
yellow Gap/ No data

UTC 24hr Time of
last update:

Click here to return
to default settings.

Support for these real-time plots has ended.
A replacement set of plots have been implemented and will take the place of these ones. You will notice a new look and modified functionality.
You can see the new plots here: