<P> The United Nations World Food Programme (UN-WFP) delivered 20 tons of high energy biscuits to the evacuees to complement supplies provided by the DSWD, with more allocated from emergency food stocks intended for relief from the effects of the 2009 Pacific typhoon season . When the alert level was downgraded to level 3 on January 2, 2010, UN-WFP provided three days worth of food for evacuees returning to their homes who will continue to receive supplies already set aside for them . </P> <P> On May 7, 2013, at 8 a.m. (PST), the volcano produced a surprise phreatic eruption lasting 73 seconds . Ash, steam and rock were produced during this eruption . Ash clouds reached 500 meters above the volcano's summit and drifted west southwest . The event killed five climbers, of whom three were German, one was a Spaniard living in Germany, and one was a Filipino tour guide . Seven others were reported injured . The bodies of the hikers were soon located by the authorities . However, due to rugged and slippery terrain, the hikers' remains were slowly transferred from Camp 2 to Camp 1, the site of the rescue operations at the foot of the volcano . According to Dr. Butch Rivera of Bicol Regional Training and Teaching Hospital, the hikers died due to trauma in their bodies, and suffocation . Authorities were also able to rescue a Thai national who was unable to walk due to fatigue and had suffered a broken arm and burns on the neck and back . Despite the eruption, the Philippine Institute of Volcanology and Seismology stated that the alert level would remain at 0 . No volcanic earthquake activity was detected in the 24 hours prior to the eruption, and no indication of further intensification of volcanic activity was observed . and no evacuation was being planned . </P> <P> The government of the United Kingdom advised its nationals to follow the advisories given by the local authorities, and respect the 6 km permanent danger zone . The advisory was given a day after the May 7, 2013 phreatic explosion . </P> <P> On August 12, 2014, a new 30m - 50m high lava dome appeared in the summit crater . This event was preceded by inflations of the volcano (measured by precise leveling, tilt data, and GPS), and increases in sulphur dioxide gas emissions . On September 14, 2014, rockfall events at the southeastern rim of the crater and heightened seismic activity caused PHIVOLCS to increase the alert level for Mayon from 2 to 3, which indicates relatively high unrest with magma at the crater, and that hazardous eruption is possible within weeks . </P>

What type of magma does mayon volcano eject