Just in case you were wondering if there has been an increase in earthquakes lately, this has very good explanations, from a modern understanding of earthquakes.
Is the world experiencing more earthquakes now than before?
Al Jazeera examines a decade of earthquake data to see how 2026 compares and explains how and where earthquakes strike.
www.aljazeera.com
(The Letter to Pythocles, section 105 has Epicurus' ideas about earthquakes -- we have much more knowledge now, but unfortunately are still unable to predict when an earthquake will occur).