Exploring the Earth

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  • Topic: Volcano, Volcanology, Pyroclastic flow
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FSTG111 Exploring the Earth Assignment 1 Study Figure I-1 and answer the following questions: (a) With which type of plate boundary are most of the modern volcanoes associated? _______________________________________________________________________ (b) Identify the following volcanoes and indicate the plate-tectonic environment of each (all of these are listed in Table 1): Volcano Plate 1. Mount St. Helens, WA 2. Kilauea, Hawaii 3. Krakatoa, Indonesia Tectonic Environment ----------------------------------------------------------------------------------------------------------------------------------------------------

4. Mount Pinatubo, Phillipines -------------------------------------------------5. Mount Vesuvius, Italy 6. Mount Pelee, Martinique 7. Nevado del Ruiz, Columbia 8. Katmai, Alaski 9. Laki, Iceland ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

(c) Would you expect an overlap between the volcanic belts and earthquake zones? If so, why?

2 `

Table 1. Selected major volcanic eruptions.

Year

Volcanic Eruption

VEI*

Comments

4895 B.C. ± 1390 B.C. ± 79 130 + 1631 1783 1792 1815

Carter Lake (Mt. Mazama), Oregon Santorini, (Thera), Greece Vesuvius, Italy Taupo, New Zealand Vesuvius, Italy Laki, Iceland Unzen, Japan Tambora, Indonesia

7 6 5 7 4 4 2 7

1883

Krakatoa, Indonesia

6

1902 1912 1914-1917

Mount Pelée, Island of Martinique, West Indies Katmai, Alaska Lassen Peak, California

4 6 3

1919 1959 1963 1968 1980

Kelut (Java) Kilauea, Hawaii Agung, Bali Fernandina, Galapagos Mount St. Helens, Washington El Chichon, Mexico Nevado del Ruiz,.Columbia Mount Pinatubo, Phillippine Islands Unzen, Japan Etna, Italy Kilauea, Hawaii

4 2 4 4 5

1982 1985 1991 1991 1991-1993 1983-1993

4 3 5 4 ? ?

Post-eruption...
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