Map generated November 13, 2019, showing earthquakes from the previous month, including the three large magnitude-6.4 to -6.6 quake that progressed toward Mount Apo. Credit: Ross Stein, Temblor

Map generated November 13, 2019, showing earthquakes from the previous month, including the three large magnitude-6.4 to -6.6 quake that progressed toward Mount Apo. Credit: Ross Stein, Temblor

Map generated November 13, 2019, showing earthquakes from the previous month, including the three large magnitude-6.4 to -6.6 quake that progressed toward Mount Apo. Credit: Ross Stein, Temblor

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Alka Tripathy-Lang, PhD

Alka Tripathy-Lang is a freelance science writer based in Chandler, Arizona, and holds a Ph.D. in geoscience.
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