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Mayon volcano
Stratovolcano 2462 m / 8,077 ft
Luzon Island, Philippines, 13.26°N / 123.69°E
Current status: restless (2 out of 5)
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Mayon volcano eruptions:
1616, 1766, 1800, 1811(?), 1814, 1827, 1834, 1839, 1845, 1846, 1851, 1853, 1855, 1857, 1858, 1859, 1860, 1861, 1862, 1863(?), 1868, 1871-72, 1872, 1873, 1876, 1876, 1881-82, 1885, 1886-87, 1888, 1890, 1891-92, 1893, 1895, 1896, 1897, 1900, 1902(?), 1928, 1928, 1939, 1941, 1943, 1947, 1968, 1978, 1984, 1993, 1999-2000, 2001, 2002, 2003, 2003(?), 2004, 2006, 2009, 2013, 2018
Typical eruption style:
Explosive.
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Mayon volcano: eruption news and updates

Mayon volcano (Philippines): eruption continues, lava flow reaching 3 km length

Friday Jan 19, 2018 09:47 AM | BY: T

Mayon volcano with an ash cloud caused by a collapse on the lava flow front on 18(?) Jan 2018 (image: PHILVOLCS)
Mayon volcano with an ash cloud caused by a collapse on the lava flow front on 18(?) Jan 2018 (image: PHILVOLCS)
The vent of the viscous lava flow erupting from the summit crater (image: PHILVOLCS)
The vent of the viscous lava flow erupting from the summit crater (image: PHILVOLCS)
The new eruption of the volcano continues, but has been a bit less vigorous during the past days. This morning, the observatory reported that "quiet lava effusion from the new summit lava dome and lava collapse events" (small to moderate rock avalanches, sometimes turning into pyroclastic flows) characterized the activity during the past 24 hours.
The lava flow in the the Miisi Gully on the volcano's southern flank has advanced to approximately 3 km distance from the summit crater.
Rockfalls, also affecting the southeastern slopes of the volcano (in particular the Bonga gulley), were generated by the collapsing lava flow front, its margins, as well as from near its source, the flat viscous summit lava dome where the magma arrives (see second image).

More than 21,000 persons (5,318 families) have by now been evacuated from areas near the volcano.

PHILVOLCS reported that "sulfur dioxide gas emission was measured at an average of 1478 tonnes/day on January 18, 2018. Alert Level 3 remains in effect over Mayon Volcano, which means that it is currently in a relatively high level of unrest as magma is at the crater and hazardous eruption is possible within weeks or even days.
"The public is strongly advised to be vigilant and desist from entering the six (6) kilometer-radius Permanent Danger Zone (PDZ) and the 7-km Extended Danger Zone (EDZ) on the southern flanks due to the danger of rockfalls, landslides and sudden explosions or dome collapse that may generate hazardous volcanic flows.
"Increased vigilance against pyroclastic density currents, lahars and sediment-laden stream flows along channels draining the edifice is also advised. Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as ash from any sudden eruption can be hazardous to aircraft. Based on the seasonal wind pattern, ash fall events may most likely occur on the southwest side of the volcano. " (PHILVOLCS)
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Links / Sources:
Previous news
Thursday, Dec 29, 2016
PHILVOLCS reports continued light unrest from the volcano. During the past 24 hours, 8 volcanic earthquakes were detected. Visible activity consists of moderate degassing only. ... [more]
Thursday, Sep 08, 2016
There are signs that the volcano could be heading towards a new eruption in the medium term future (weeks to months). PHILVOLCS issued a warning and raised the alert level from Level 0 (normal) to Alert Level 1 (abnormal). ... [more]

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