NAME OF VOLCANO:                        IRIGA             

LOCATION:                                        Camarines Sur (13°27.4'N, 123°27.4'E)    

PHYSICAL FEATURES

Elevation:  1.143 km        

Base Diameter:  10 km                                          

Type of Volcano:  Stratovolcano

Crater Lake/Maar:  Lake Buhi

GEOLOGICAL FEATURES

Rock Type:  Porphyritic-aphanitic augite andesite         

Tectonic Setting:  Bicol Volcanic Chain

VOLCANIC ACTIVITY

Number of Historical Eruptions:  2

Year:  1628 and 1642 (Jan. 4)

Eruption Type:  Phreatic, debris avalanche