Spatial and temporal distribution of the seismic activity between the islands of Santorini and Amorgos. Purple dots represent the oldest earthquakes, while yellow dots represent the most recent earthquakes. The size of dots is the magnitude. Source:

Credit: EMSC/CSEM,

California’s “paper” wetland restorations? One small island, a vanished Delta Smelt, and a $39M fine expose what might be the biggest eco-cover-up in the Bay-Delta.

Some kind of moving average on a coefficient of magnitude and number of events per period (maybe 3h or 6h) might be interesting.

That's interesting. There were scuba diver reports in the 2010s of hot-water flows on Santorini's NE coast. But that's probably coincidence. This looks like a new volcano.