Nevado del Ruiz, a deadly stratovolcano in central Colombia, continued its recent explosive uptick at 03:06 UTC, April 25. The Volcanic Ash Advisory Center (VAAC) Washington warned of an ash plume reaching 21,000 ft (6400 m), or flight level 210.
The volcano has an eruptive history peppered with confirmed VEI 2 and 3 eruptions.
Though none come close to the death and destruction caused by the VEI 3 beginning in 1985:
That eruption melted a portion of a glacier sitting atop the mountain which resulted in a rampaging lahar (mud flow) rolling into nearby towns and villages, ultimately killing 25,000 — most residing in the town of Armero.
The event marked one of the worst volcanic disasters in history.
Stratovolcano: 5321 m / 17,457 ft
Columbia: 4.9°N / -75.32°W
Nevado del Ruiz volcano in central Colombia, 130 km WNW of Bogota, is a broad, glacier covered volcano.
Eruption list: 2019, 2015-16, 2014-15, 2012-13, 1994 (?), 1985-91, 1984-85, 1916, 1845, 1833?, 1831, 1829, 1828, 1826(?), 1805, 1623, 1595, 1570, 1541(?)
For more see VolcanoDiscovery.com
Seismic and Volcanic activity has been correlated to changes in our sun.
The recent global uptick in earthquakes and volcanic eruptions is likely attributed to the drop-off in solar activity, coronal holes, a waning magnetosphere, and the increase in Galactic Cosmic Rays penetrating silica-rich magma.
Check out these link for more info:
Grand Solar Minimum + Pole Shift