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Ibusuki volcanic field - Quiz
Contributed by: Buck
  • 1. In which Japanese prefecture is the Ibusuki volcanic field located?
A) Fukuoka
B) Oita
C) Kagoshima
D) Kumamoto
  • 2. The Ibusuki volcanic field is located on which peninsula?
A) Osumi Peninsula
B) Satsuma Peninsula
C) Nishi-Matsura Peninsula
D) Kunisaki Peninsula
  • 3. Geologically, the Ibusuki volcanic field is usually regarded as part of which caldera?
A) Kikai Caldera
B) Ata South Caldera
C) Aira Caldera
D) Kirishima Caldera
  • 4. How much volcanic material is estimated to be contained in the Ibusuki volcanic field?
A) 54 km3
B) 32 km3
C) 100 km3
D) 12 km3
  • 5. When did Mount Kaimon last erupt?
A) 10000 BCE
B) 2090 BCE
C) 4800 years ago
D) 885 CE
  • 6. The present Ikeda Caldera was formed how many years ago?
A) 885 years ago
B) 2800 years ago
C) 4800 years ago
D) 6000 years ago
  • 7. Which of these is a stratovolcano within the Ibusuki volcanic field?
A) Washiodake
B) Tsujinodake
C) Kasagadake
D) Mount Kaimon
  • 8. Approximately how many hot springs are located within 5 km of the sea at the southeastern tip of the Satsuma Peninsula?
A) 450
B) 1200
C) 800
D) 100
  • 9. What is the generating capacity of the Yamagawa Binary Power Station?
A) 10000 kW
B) 4990 kW
C) 2500 kW
D) 1000 kW
  • 10. The volcanism in the Ibusuki field is associated with the subduction of which plate under the Eurasian Plate?
A) North American Plate
B) Philippine Sea Plate
C) Pacific Plate
D) Australian Plate
  • 11. Which fault scarp limits the north western sector of the Ibusuki volcanic zone?
A) Kagoshima fault scarp
B) Satsuma fault scarp
C) Ata fault scarp
D) Onkadobira fault scarp
  • 12. How many years ago was the Nabeshimadake lava dome formed?
A) 6000 years ago
B) 4800 years ago
C) 2,800 years ago
D) 885 years ago
  • 13. Which major earthquake caused seismic activation of local faults in the Ibusuki area?
A) 2011 Tōhoku earthquake
B) 1995 Kobe earthquake
C) 1923 Great Kanto earthquake
D) 2016 Kumamoto earthquake
  • 14. What kind of volcanic structure is Mizunashi?
A) Stratovolcano
B) Cinder cone
C) Lava dome
D) Maar
  • 15. What is the status of the Ibusuki volcanic field regarding eruptive intervals?
A) Currently experiencing high eruption frequency
B) Longest period between eruptions for the last 4000 years
C) Has been dormant for over 1 million years
D) Erupts exactly every 1000 years
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