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Harrat Rahat

Rahat, Harrat

Campo volcánico · Saudi Arabia · 1744 m

The northern part of Saudi Arabia's largest lava field, 20,000 km2 Harrat Rahat, is seen in this NASA International Space Station image (N to the top left). Harrat Rahat extends for 300 km S of the city of Madinah (Medina), the light-colored area at the top-center. Although basaltic scoria cones are more common, small shield volcanoes and lava domes are also present. The most well-known eruption took place in 1256 CE, when the large dark-colored flow seen extending to the upper right traveled 23 km to within 4 km of Madinah.
The northern part of Saudi Arabia's largest lava field, 20,000 km2 Harrat Rahat, is seen in this NASA International Space Station image (N to the top left). Harrat Rahat extends for 300 km S of the city of Madinah (Medina), the light-colored area at the top-center. Although basaltic scoria cones are more common, small shield volcanoes and lava domes are also present. The most well-known eruption took place in 1256 CE, when the large dark-colored flow seen extending to the upper right traveled 23 km to within 4 km of Madinah. · Foto: NASA International Space Station image ISS001-344-27, 2001 (http://eol.jsc.nasa.gov/). · Wikimedia Commons
Tipo
Campo volcánico
País
Saudi Arabia
Región
Arabia-Central Asia Volcanic Regions / Western Arabia Volcanic Province
Altitud
1744 m
Coordenadas
23.080, 39.780
Última erupción
1256
Contexto tectónico
Intraplate / Continental crust (> 25 km)
Forma volcánica
Cluster
Roca principal
Basalt / Picro-Basalt
Resumen geológico

Harrat Rahat, Saudi Arabia's largest lava field, covers 20,000 km2 and extends for 300 km S of Madinah (Medina). Four coalescing lava fields erupted from offset NNW-trending vent systems comprise the field, which has an average width of 60 km. Lava flows extend as far as 100 km W of the axis of the field. Basaltic scoria cones dominate, but the volcanic field has also produced silicic trachy-basaltic to trachytic rocks. Small shield volcanoes and lava domes with associated pyroclastic flow and surge deposits are also present. Activity has migrated to the north over time, resulting in eruptions near Madinah. The best-known eruption took place in 1256 CE, when a 0.5 km3 lava flow erupted from six aligned scoria cones and traveled 23 km to within 4 km of Madinah.

Resumen de Wikipedia

Resumen en inglés

Ḥarrat Rahāṭ is a volcanic lava field in the Hejazi region of Saudi Arabia. In 1256 CE, a 0.5 km3 (0.12 cu mi) lava flow erupted from six aligned scoria cones, and traveled 23 km to within 4 km of the Islamic holy city of Medina; this was its last eruption. There were earlier eruptions, such as in 641 CE, which made finger-like flows to the east of the 1256 CE flow. It is the biggest lava field in Saudi Arabia. Nearby is Al Wahbah crater.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
641~706 · 1 erupciones · VEI máx. 21227~1292 · 2 erupciones · VEI máx. 364177196710971227

Línea de tiempo detallada

  1. 1292VEI ?Estimación geológica
    1292 – En curso
    Near Madinah
  2. 1256VEI 3Observado
    1256-06-05 – 1256-07-27
    Fissure 20 km SE of Madinah
  3. 641VEI 2Observado
    641 – En curso
    West of Madinah

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.