THE Philippine Institute of Volcanology and Seismology (Phivolcs) yesterday raised alert level 4 over
Mayon Volcano in Albay.
This after Mayon released magma, lava fragments, ash and steam as high as 10- kilometers
from its crater at noon yesterday.
The Phivolcs said alert level 4 means a hazardous explosion may happen in a matter of hours
Around 8 a.m. yesterday, Mayon’s seismic monitoring network recorded three volcanic tremors,
two of which corresponded to lava fountaining, and 64 rockfall events and one pyroclastic density
Strombolian activity was recorded at 10:45 p.m. on Sunday and 2:25 a.m. yesterday.
The lava fountains signified an increase in mass eruption rate as lava was observed to be
flowing more voluminously than before, feeding the advancing Miisi lava anew.
The Miisi lava flow had advanced beyond 3-kilometers from the summit’s crater within the
permanent danger zone.
Two new lava flowed on the Bonga gully.
As of 6 p.m. on Sunday, a total of 10,491 families or 40,718 persons were affected in the 39
barangays in the municipalities and cities of Camalig, Guinobatan, Ligao City, Daraga, Tabaco City,
Malilipot, Sto. Domingo (Libog) and Legazpi City in Albay.
Phivolcs officials are discussing possibilities of expanding the permanent danger zone
The PDZ had been expanded to seven kilometers after the alert level was raised to 3 earlier
LEGAZPI AIRPORT ORDERED CLOSED
THE Civil Aviation Authority of the Philippines (CAAP) issued a Notice to Airmen (notam) effective
12:06 p.m. yesterday until 9 a.m. today after Mayon Volcano erupted, sending volcanic ash cloud into
CAAP spokesman Eric Apolonio said that effective 2:21 p.m. yesterday, operations at the
Legazpi airport was temporary closed until further advice.
Affected flights were Cebu Pacific’s Manila-Legazpi and Mactan-Legazpi.
CAAP advised pilots flying near the area to exercise extreme caution, as ash from Mayon’s
eruption can be hazardous to the aircraft.
The notice is valid until 9 a.m. today and is renewable every day depending on the activity
Meanwhile, six Cebu Pacific and Cebgo flights bound for Legazpi City and Naga City and back
were cancelled yesterday afternoon as Mayon Volcano spewed volcanic ash.
CEB vice president for marketing Candice Iyog said passengers who are flying to and from Naga
and Legazpi today were advised to await further announcements regarding their flight schedules.
Philippine Airlines (PAL) also cancelled the following flights: PR 2927/2928 Cebu - Legaspi -
Cebu ; - PR 2965/2966 Clark - Naga - Clark .
As of 2:10 p.m. yesterday, the Legaspi airport was declared closed for operations in view of
the volcanic eruption.