Significant earthquakes are magnitude 5.0 and up over the past week; space-weather alerts and tsunami warnings are NOAA's active products; asteroid passes are those coming within 15 lunar distances over the next three days; volcanoes and storms come from NASA's Earth Observatory event tracker. Outbreak items are WHO's Disease Outbreak News, the situation reports it publishes on outbreaks under investigation anywhere in the world; they appear here as filed, and a report is a record of what WHO was told, not a forecast. The respiratory line is the CDC's wastewater surveillance network, which measures viral genetic material at treatment plants across the United States: it reads a whole community at once rather than any individual, it runs a week behind, and it says nothing about who is ill or how ill they are. Click any item for its source or the room that covers it.