It is a precaution.

Since there is increased volcanic, earthquake, atmospheric, solar, magnetispheric and weather conditions. And since these conditions are becoming severe and likely to cause a major earthquake in the US in the near future. The USGS in cooperation with the US government has decided to prevent panic and unneccessary attention to these events and will briefly take them offline.

Since there is increased negative public discourse, anti-government hatred, illegal speech acts, unauthorized video material, treasonous and seditious slogans. And since these conditions are a direct threat to the welfare and safety of citizens and the continuous safe operation of their government, it is neccessary to briefly take offline some portions of the internet.

Precautions are important for your well-being.