[keepamovin]

I think there's some confusion there. The Carrington is estimated to have been caused by an X80 solar flare, whereas we were getting around X3 flares for this storm. That's a log scale, so there's quite a difference.

Two other factors are important: firstly, the flare and the CME are inter-related but separate. You can get a big flare, but not a big CME, or the CME can not be Earth-directed, so no hit.

Secondly, Earth's magnetic field has weakened significiantly since 1859 (its strength is cyclical, and related to how the true poles wander and drift over time). This means that smaller events cause larger disruptions to the electromagnetics of Earth.

So we have Dst -1000 for Carrington, and -250 for the storm over the weekend. Due to our impaired EM immune system right now, we could get Carrington level EM disturbance on Earth from smaller events on the sun.