Lewati ke konten utama
← Kembali ke peta
⇄ Bandingkan

Gunung Rainier

Rainier

Stratovolkan · United States · 4392 m

Mount Rainier is located east of the Puget Sound region, seen here from High Knob to the SW in 1981. Large Holocene mudflows from this heavily glaciated volcano have reached as far as the Puget Sound lowlands. Several postglacial tephras have erupted from Rainier, with tree-ring dating placing the last recognizable tephra deposit during the 19th century. Extensive hydrothermal alteration of the upper portion of the volcano has contributed to its structural weakness.
Mount Rainier is located east of the Puget Sound region, seen here from High Knob to the SW in 1981. Large Holocene mudflows from this heavily glaciated volcano have reached as far as the Puget Sound lowlands. Several postglacial tephras have erupted from Rainier, with tree-ring dating placing the last recognizable tephra deposit during the 19th century. Extensive hydrothermal alteration of the upper portion of the volcano has contributed to its structural weakness. · Foto: Photo by Lee Siebert, 1981 (Smithsonian Institution). · Wikimedia Commons
Tipe
Stratovolkan
Negara
United States
Wilayah
North America Volcanic Regions / High Cascades Volcanic Arc
Ketinggian
4392 m
Koordinat
46.853, -121.760
Letusan terakhir
1450
Kondisi tektonik
Subduction zone / Continental crust (> 25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

Mount Rainier is a heavily glaciated andesitic volcano in the Puget Sound region. Large Holocene mudflows from collapse have reached as far as the Puget Sound lowlands. The present summit was constructed within a large crater breached to the NE, formed by collapse during a major explosive eruption about 5,600 years ago that deposited the widespread Osceola Mudflow. Rainier has produced eruptions throughout the Holocene, including about a dozen during the past 2,600 years; the largest of these occurred about 2,200 years ago. The present summit cone is capped by two overlapping craters. Extensive hydrothermal alteration of the upper portion of the volcano has contributed to its structural weakness; an active thermal system has caused periodic melting on flank glaciers and produced an elaborate system of steam caves in the summit icecap. Reported uncertain 19th-century eruptions, including a possible but not confirmed phreatic eruption in 1894, have not left identifiable deposits.

Ringkasan Wikipedia

Ringkasan Inggris

Mount Rainier, also known as Tahoma, is a large, active stratovolcano in the Cascade Range of the Pacific Northwest in the United States. The mountain is located in Mount Rainier National Park about 59 miles (95 km) south-southeast of Seattle. At 14,410 feet (4,390 m) it is the highest mountain in the U.S. state of Washington, the most topographically prominent mountain in the contiguous United States, and the tallest in the Cascade Volcanic Arc.

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
8050 BCE~7719 BCE · 2 letusan · VEI maks. 35730 BCE~5398 BCE · 1 letusan · VEI maks. 25398 BCE~5067 BCE · 1 letusan · VEI maks. 35067 BCE~4735 BCE · 2 letusan · VEI maks. 34072 BCE~3741 BCE · 1 letusan · VEI maks. ?3741 BCE~3409 BCE · 1 letusan · VEI maks. 33078 BCE~2747 BCE · 1 letusan · VEI maks. 22747 BCE~2415 BCE · 1 letusan · VEI maks. 3758 BCE~426 BCE · 4 letusan · VEI maks. ?426 BCE~95 BCE · 3 letusan · VEI maks. 4237~568 · 1 letusan · VEI maks. ?900~1231 · 1 letusan · VEI maks. ?1231~1563 · 1 letusan · VEI maks. ?1563~1894 · 7 letusan · VEI maks. 28050 BCE5730 BCE3078 BCE758 BCE1563

Garis waktu rinci

  1. 1894VEI 1Teramati
    1894-11-21 – 1894-12-24
  2. 1882VEI 2Perkiraan geologi
    1882 – Berlangsung
  3. 1879VEI 2Perkiraan geologi
    1879 – Berlangsung
  4. 1870VEI 2Perkiraan geologi
    1870 – Berlangsung
  5. 1858VEI 2Perkiraan geologi
    1858 – Berlangsung
  6. 1854VEI 2Perkiraan geologi
    1854 – Berlangsung
  7. 1843VEI 2Perkiraan geologi
    1843 – Berlangsung
  8. 1450 (±100 tahun)VEI ?Perkiraan geologi
    1450 – Berlangsung
  9. 910 (±500 tahun)VEI ?Perkiraan geologi
    910 – Berlangsung
  10. 440 (±100 tahun)VEI ?Perkiraan geologi
    440 – Berlangsung
  11. 150 SMVEI ?Perkiraan geologi
    BCE 150 – Berlangsung
  12. 250 SM (±200 tahun)VEI 4Perkiraan geologi
    BCE 250 – Berlangsung
  13. 400 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 400 – Berlangsung
  14. 500 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 500 – Berlangsung
  15. 610 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 610 – Berlangsung
  16. 650 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 650 – Berlangsung
  17. 700 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 700 – Berlangsung
  18. 2550 SMVEI 3Perkiraan geologi
    BCE 2550 – Berlangsung
  19. 2750 SMVEI 2Perkiraan geologi
    BCE 2750 – Berlangsung
  20. 3650 SMVEI 3Perkiraan geologi
    BCE 3650 – Berlangsung
  21. 3850 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 3850 – Berlangsung
  22. 4850 SMVEI 2Perkiraan geologi
    BCE 4850 – Berlangsung
  23. 5050 SMVEI 3Perkiraan geologi
    BCE 5050 – Berlangsung
  24. 5350 SMVEI 3Perkiraan geologi
    BCE 5350 – Berlangsung
  25. 5550 SMVEI 2Perkiraan geologi
    BCE 5550 – Berlangsung
  26. 7800 SM (±300 tahun)VEI ?Perkiraan geologi
    BCE 7800 – Berlangsung
  27. 8050 SMVEI 3Perkiraan geologi
    BCE 8050 – Berlangsung

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.