Philippines

NDRRMC Update: SitRep No. 02 re Preparedness Measures for Kanlaon Volcano, 18 November 2017

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I. SITUATION OVERVIEW

On 15 November 2017, Kanlaon Volcano's seismic monitoring network recorded two hundred seventy nine deep (279) volcanic earthquakes. Since 18 August 2017, the number of volcanic earthquakes detected per day has continued to increase. There has been no visible degassing or steaming from the active vent this year, although increased unrest could possibly develop into steam-driven or phreatic eruptions at the summit.

Alert Level 2 status prevails over Kanlaon Volcano, which means that the volcano is undergoing a moderate level of unrest. There is probable intrusion of magma at depth which may or may not lead to a magmatic eruption.

On 16 November 2017, 217 volcanic earthquakes were recorded. No degassing activity was observed during times when the summit crater was visible.

On 17 November 2017, ten (10) volcanic earthquakes were recorded for the past 24 hours.

On 18 November 2017, twenty-four (24) volcanic earthquakes were recorded for the past 24 hours.