Special Report: Increased activity of the volcano Nevado del Ruiz – August 28, 2015
Subject: Extraordinary activity of the volcano Nevado del Ruiz. The Yellow level of activity or (III) continues: changes in the behavior of volcanic activity.
Regarding the monitoring of the activity of the Nevado del Ruiz volcano, the SERVICIO Geologico COLOMBIANO through the OBSERVATORIO VULCANOLÓGICO Y SISMOLÓGICO OF MANIZALES, informs that:
On August 28, 2015, at 8:10 (local time), the volcano has experienced a significant increase in seismic activity related to the movement of fluids inside the volcano. This activity is different of pulses of tremor that have arisen in recent weeks .It is registered as spasms with high levels of energy. These signs are accompanied by an increased number of LP type earthquakes (long time). Following this seismicity, there is the possibility of a further increase in the activity of the volcano.
These changes in activity are part of the instability of the volcano since 2010 and in recent months, it has been demonstrated mainly with continuous recording of tremor signal transmission processes associated with the ash emissions, as this was reported by the weekly bulletins.
Authorities recommend at the community to continue to be alert to any change in the current activity of the volcano. Do not exclude that other changes may occur in the behavior of volcanic activity, indicating greater system instability.
August 30, 2015. Nevado del Ruiz, Colombia :
Source : SGC