Banqiao Dam failure alone flooded over 12,000 square kilometers, killing ~30k directly then ~100k more from water contamination and famine.
Even solar still requires various minerals the extraction and processing of which has environmental impact - like tailing ponds of toxic substances that frequently leak, particularly from earthquakes and extreme weather.
But to be clear, the human and environmental impact of solar, wind, nuclear and hydro pales in comparison to that of fossil fuels.
I specifically made my comment about wind and solar. I am not a big fan of large scale hydro for just this reason, as well as the impact on aquatic ecosystems.
> I specifically made my comment about wind and solar
You said "Suppose you have a devastating earthquake that wrecks renewable power sources in an area" - hydropower is considered renewable. I also did address a similar risk of solar (barely anything compared to fossil fuels, but same applies to nuclear).
Even solar still requires various minerals the extraction and processing of which has environmental impact - like tailing ponds of toxic substances that frequently leak, particularly from earthquakes and extreme weather.
But to be clear, the human and environmental impact of solar, wind, nuclear and hydro pales in comparison to that of fossil fuels.