Increase in Ecuador's Tunguarahua Volcano Reported
Moderate // Volcano
QUITO -- The Instituto Geofísico reported an increase in activity of the Tunguarahua volcano. Since March 3, a total of four eruptions were recorded. On Sunday at 7:31 a.m. (local time), the volcano generated an ash column which reached approximately 4 kilometers into the sky and moved west-northwest. A second explosion occurred at 9:11 a.m. (local time) and caused a powerful shock wave that rocked the ground and windows in nearby areas. Cloud cover has prevented experts to make detailed observations, but with the use of thermal sensors, hot deposits were detected on Tunguarahua's flanks, indicating that they were caused by a pyroclastic flow. The observatory post at Cusúa also reported the presence of hot deposits on the volcano's upper flank which is indicative of fresh pyroclastic flow deposits. Ash fall was reported in the areas of Choglontús, Manzano and Motilones before, but Sunday morning's ashfall reached as far as the Yuibug area. The institute's monitoring equipment has been recording variable seismicity and strong tremors lasting minutes to hours, with short moderate to large explosions in between. Such explosions correspond to the ash explosions from the growing lava dome.