Schau dir “August 25/26, 2019 ~ Three Explosions (Real-Time) ~ Popocatepetl Volcano, Mexico” auf YouTube an

Most of California’s Big Earthquakes Are Preceded by Ghostly ‘Foreshocks’ Weeks in Advance — Livescience.com

Foreshocks — the tiny, sometimes imperceptible tremors that precede massive earthquakes — are way more common than we thought.

über Most of California’s Big Earthquakes Are Preceded by Ghostly ‘Foreshocks’ Weeks in Advance — Livescience.com