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The quake’s epicenter was near Marradi, northeast of Florence, and it struck at 5:10 a.m., after some smaller temblors, according to Italy’s institute of geophysics and vulcanology.

During the night between Tuesday and Wednesday, the Canary Islands’ vulcanology institute said the amplitude of the volcano’s seismic activity intensified.

Guatemala’s seismology and vulcanology institute said the new lahar — a flow of mud, debris, water and pyroclastic material — was fed by rains and tore down trees as it swept through ravines and gullies.

But then she noticed that in all the things she learned at the Tower—about astronomy and botany and mechanics and mathematics and vulcanology—not once was the Witch mentioned.

More than 560 volcanic tremors were detected on Monday alone, according to the national vulcanology centre.