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Savai'i   »  Eruptive History

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Savai'i

Start Date: 1905  Aug 4  Stop Date: 1911 Nov 

Dating Technique: Historical Records

Volcanic Explosivity Index (VEI):  2

Lava Volume:  > 1  x  109 m3

Tephra Volume:  5.5  ±  5.0  x  106 m3

Area of Activity: Matavanu (north flank 402 m)

Eruptive Characteristics:
    Flank (excentric) vent
    Radial fissure eruption
    Explosive eruption
    Lava flow(s)
    Lava lake eruption
    Damage (land, property, etc.)
    Tsunami (giant sea waves)

Start Date: 1902  Oct 30  Stop Date: 1902 Nov 17 ± 4 days

Dating Technique: Historical Records

Volcanic Explosivity Index (VEI):  1

Area of Activity: Mata Ole Afi (1649 m)

Eruptive Characteristics:
    Central vent eruption
    Radial fissure eruption
    Explosive eruption
    Lava flow(s)
    Evacuation

Start Date: 1760  Stop Date: Unknown

Dating Technique: Historical Records

Volcanic Explosivity Index (VEI):  2

Lava Volume:  2  x  109 m3

Area of Activity: Mauga Afi (west-central Toasivi ridge)

Eruptive Characteristics:
    Central vent eruption
    Radial fissure eruption
    Explosive eruption
    Lava flow(s)
    Damage (land, property, etc.)
    Evacuation

Start Date: 1610 ± 200 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Area of Activity: Le'ele

Eruptive Characteristics:
    Flank (excentric) vent
    Explosive eruption

Start Date: 1350 ± 50 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Area of Activity: Tafua Savai'i?

Eruptive Characteristics:
    Flank (excentric) vent
    Explosive eruption
    Lava flow(s)

Start Date: 1310 ± 50 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Explosive eruption
    Lava flow(s)

Start Date: 1240 ± 30 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Central vent eruption
    Lava flow(s)

Start Date: 1040 ± 150 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Flank (excentric) vent  (?)
    Lava flow(s)

Start Date: 170 AD ± 100 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Flank (excentric) vent  (?)
    Lava flow(s)

Start Date: 480 BC ± 300 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Explosive eruption
    Lava flow(s)  (?)

Start Date: 1150 BC ± 150 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Eruptive Characteristics:
    Flank (excentric) vent
    Lava flow(s)

Start Date: 1990 BC ± 150 years Stop Date: Unknown

Dating Technique: Radiocarbon (corrected)

Area of Activity: North flank (Maugaloa)

Eruptive Characteristics:
    Flank (excentric) vent
    Explosive eruption
    Lava flow(s)


Global Volcanism ProgramDepartment of Mineral SciencesNational Museum of Natural HistorySmithsonian Institution

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