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Amerika Serikat · Rekahan erupsi

North Gorda Ridge Segment

Tipe
Rekahan erupsi
Ketinggian
3000 m (bawah laut)
Letusan terakhir
1996
This lava flow was erupted in 1996 along the North Gorda Ridge, the northernmost of five segments of the Gorda Ridge located immediately south of the Blanco Transform Fault, which offsets the Gorda and Juan de Fuca spreading ridges. Submarine cameras revealed new lava flows about 100-200 m wide along a fissure that was at least 3.5 km long. The 65-km-long North Gorda Ridge segment is located about 200 km W of the southern Oregon coast and has an hourglass shape in plan view, with a shallower narrow axial valley at the center.
This lava flow was erupted in 1996 along the North Gorda Ridge, the northernmost of five segments of the Gorda Ridge located immediately south of the Blanco Transform Fault, which offsets the Gorda and Juan de Fuca spreading ridges. Submarine cameras revealed new lava flows about 100-200 m wide along a fissure that was at least 3.5 km long. The 65-km-long North Gorda Ridge segment is located about 200 km W of the southern Oregon coast and has an hourglass shape in plan view, with a shallower narrow axial valley at the center. · Foto: Image courtesy of National Oceanic and Atmospheric Administration, 1996 (http://www.pmel.noaa.gov/vents/home.html).
Tipe
Rekahan erupsi
Negara
Amerika Serikat
Wilayah
Pasifik Timur / Northeast Pacific Rifts Volcanic Province
Ketinggian
3000 m (bawah laut)
Koordinat
42.670, -126.780
Letusan terakhir
1996
Kondisi tektonik
Zona rift / Kerak samudra (< 15 km)
Bentuk lahan
Gugusan gunung api
Batuan utama
Basal / Pikrobasal

Ringkasan geologi

Teks asli bahasa Inggris

The northernmost of five segments of the Gorda Ridge lies immediately south of the Blanco Transform Fault that offsets the Gorda and Juan de Fuca oceanic spreading ridges.

Kutipan dari Global Volcanism Program, Smithsonian Institution · Baca ringkasan lengkap di GVP →

Riwayat letusan

3 tercatatGlosarium

Ringkasan catatan

Letusan terkonfirmasi
3
Letusan tidak pasti
0
Rentang catatan terkonfirmasi
4840 SM – 1996
Letusan terkonfirmasi terbesar
VEI 0 (1996, yang terbaru dari 3)
Letusan terkonfirmasi sejak 1900
1
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
4840 SM~4612 SM · 1 letusan · VEI maks. 03245 SM~3017 SM · 1 letusan · VEI maks. 01768~1996 · 1 letusan · VEI maks. 04840 SM3245 SM1422 SM1731768

Garis waktu rinci

  1. 1996VEI 0Teramati
    1996-02-28 – 1996-03-15
    Near center of North Gorda Ridge segment
  2. 3020 SMVEI 0Perkiraan geologi
    3020 SM – akhir tidak diketahui
  3. 4840 SMVEI 0Perkiraan geologi
    4840 SM – akhir tidak diketahui

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Tautan eksternal

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