Map showing seismicity for the past 30 days in the region around Taal, as of Jan. 13, 2020. Earthquakes are from the PHIVOLCS earthquake catalog. The vast majority of these quakes have happened in the past few days, and tend to be less than magnitude-4.0. Quakes larger than magnitude-4.0 are marked by stars. The ash plume is based on satellite imagery taken after the eruption commenced on Sunday, Jan. 12, 2020. Credit: Ross Stein, Temblor

Map showing seismicity for the past 30 days in the region around Taal, as of Jan. 13, 2020. Earthquakes are from the PHIVOLCS earthquake catalog. The vast majority of these quakes have happened in the past few days, and tend to be less than magnitude-4.0. Quakes larger than magnitude-4.0 are marked by stars. The ash plume is based on satellite imagery taken after the eruption commenced on Sunday, Jan. 12, 2020. Credit: Ross Stein, Temblor

Map showing seismicity for the past 30 days in the region around Taal, as of Jan. 13, 2020. Earthquakes are from the PHIVOLCS earthquake catalog. The vast majority of these quakes have happened in the past few days, and tend to be less than magnitude-4.0. Quakes larger than magnitude-4.0 are marked by stars. The ash plume is based on satellite imagery taken after the eruption commenced on Sunday, Jan. 12, 2020. 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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