John Seach, Volcano Live

 Volcanic Tsunamis - John Seach

Tsunami Date
Volcano
Comments
1638 BC
Santorini (Greece)
Waves 50 m. Destroyed population on Crete.
79
Vesuvius (Italy)
Caused by caldera collapse.
1640
Komaga-take (Japan)
Caused by volcanic earthquake.
1660
Long Island (Papua New Guinea)
Deaths from tsunami.
1693
Hekla (Iceland)
Tsunami caused by volcanic earthquake.
1715
Taal (Philippines)
Tsunami caused by base surge.
1741
Oshima-Oshima (Japan)
Mag 6.9 volcanic earthquake caused tsunami.
1749
Taal (Philippines)
Tsunami caused by base surge.
1754
Taal (Philippines)
Tsunami caused by volcanic earthquake.
1780
Sakura-jima (Japan)
Wave 6 m.
1792
Unzen (Japan)
Waves 55 m. Caused by avalanche. Over 10,000 killed.
1815
Tambora (Indonesia)
Waves over 10 m. Caused by pyroclastic flows. Over 10,000 killed.
1827
Avachinsky (Russia)
Tsunami caused by volcanic earthquake.
1845
Soputan (Indonesia)
Tsunami caused by volcanic  earthquake.
1871
Ruang (Indonesia)
Wave 26 m. Caused by pyroclastic flow.
1878
Yasur (Vanuatu)
Wave 16 m. Caused by volcanic earthquake.
1878
Rabaul (Papua New Guinea)
Wave 4 m.
1878
Okmok (Alaska)
Caused by volcanic earthquake.
1883
Augustine (Alaska)
Waves 9 m. Caused by avalanche.
1883
Krakatoa (Indonesia)
Waves 40 m. lethal volcanic tsunami on record with 36,000 killed.
1888
Ritter (Papua New Guniea)
Waves 12 m. Casued by avalanche. Many killed.
1889
Banua Wuhu (Indonesia)
Tsunami caused by volcanic earthquake.
1889
Banua Wuhu (Indonesia)
Unknown wave height.
1892
Awu (Japan)
Pyroclastic flow generated tsunami.
1902
St Vincent (Caribbean)
Pyroclastic flow generated tsunami.
1902
Pelee (Caribbean)
Pyroclastic flow generated tsunami.
1906-07
Savai'i (Samoa)
Tsunamis caused by lava entering the sea.
1911
Taal (Philippines)
Tsunami caused by base surge.
1913
Ambrym (Vanuatu)
Underwater eruption.
1913
Taal (Philippines)
Unknown wave height.
1915
Bayonnaise Rocks (Myojin Reef) Japan
Unknown wave height.
1928
Paluweh (Indonesia)
Waves 10 m. Caused by avalanche. 150 killed.
1929
Anak Krakatau (Indonesia)
Wave 4 m.
1930
Stromboli (Italy)
Wave 2 m. Caused by volcanic earthquake and landslide.
1933
Severgin (Kurile Islands)
Waves 10 m. Caused by volcanic earthquakes.
1937
Rabaul (Papua New Guinea)
Wave over 4 m, caused by volcanic earthquake.
1951
Kavachi (Solomon Islands)
Unknown wave height.
1952
Bayonnaise Rocks (Myojin Reef) Japan
Submarine eruption. Wave 2 m.
1953
Tuluman (Papua New Guinea)
Small wave.
1956
Bezymianny (Russia)
Tsunami caused by shockwave.
1965
Taal (Philippines)
Tsunami caused by base surge.
1969
Didicas (Philippines)
Three killed.
1971
Tinakula (Solomon Islands)
Unknown wave height.
1972
Ritter (Papua New Guniea)
Subsidence. Small tsunamis.
1974
Ritter (Papua New Guniea)
Subsidence. Small tsunamis.
1979
Illiwerung (Indonesia)
Waves 9 m. Caused by avalanche. Over 500 killed.
1980's
Ruapehu (New Zealand)
Wave < 2 m.
1980
St Helens (USA)
Waves 260 m. Caused by avalanche into lake.
1983
Illiwerung (Indonesia)
Submarine eruption. Some deaths.
1986
Nyos (Cameroon)
Waves 75 m. Caused by underwater eruption of CO2.
1988
Vulcano (Italy)
Waves 5.5 m. Caused by avalanche. 
1994
Rabaul (Papua New Guinea)
Wave 1.2 m. Caused by pyroclastic flow.
1996
Karymsky (Russia)
Waves 30 m. Caused by phreatomagmatic eruption.
1997
Soufriere Hills (Montserrat)
Waves 3 m. Caused by volcanic debris slide.
2002
Stromboli (Italy)
Landslide.
Various years
Kick 'em Jenny (Caribbean)
Waves 5 m. Caused by underwater eruption.
Undated
Augustine (Alaska)
Pyroclastic flow generated tsunami.

How Do Volcanoes Produce Tsunamis?
Volcanoes produce tsunamis through nine different mechanisms.
Volcanic earthquakes, undersea eruptions, pyroclastic flows, caldera collapse, landslides, 
lahars, phreatomagmatic eruptions, lava bench collapse, and airwaves from large explosions.

Waves produced by volcanic tsunamis can be as high as those produced by the largest earthquakes.
The most devastating volcanic tsunami recorded was that produced by the eruption of Krakatoa in 1883. 
The waves had runup heights of 40 m and killed 36,000 people.

Volcanoes and Tsunamis
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Copyright John Seach