Get our newsletter!
Voyages aux volcans actifs !
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Notre nouveau livre
Volcano Discoveries: "One of the most eye-catching guides to the world’s volcanoes ever published."
Voyages Volcans
VolcanoAdventures: Depuis 2005, VolcanoDiscovery propose des voyages en petits groupes, des randonnées et du trekking, ainsi que des expéditions pour voir des volcans actuellement en activité, des voyages photographiques dans de nombreuses régions d’activité volcanique à travers le monde.
Volcano Adventure Guide
The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Départs garantis:
2-18 nov. 2019: Volcans et Épices - Mer des Moluques (Sulawesi, Indonésie)
17-21 nov. 2019: Spécial Volcan Krakatau - Le Krakatau, détroit de la Sonde
17-30 nov. 2019: Désert, sels et volcans - Désert de Danakil (Éthiopie)
9-17 mai 2020: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
9-23 juil. 2020: Colors of Iceland: Fire, Earth, Ice and Water - Iceland
11-29 août 2020: Kamchatka - Land of Colors - Kamchatka (Russia)
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Diaporama
Actualités

Pas d'article dans la liste.

 

Harrat Rahat volcan

champ volcanique 1744 m / 5,722 ft
western Saudi Arabia, 23.08°N / 49.78°E
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Harrat Rahat livres
Style éruptif tipique: effusif
Eruptions du volcan Harrat Rahat: 1292 (?), 1256, 641 AD No recent earthquakes
HeureMag. / DepthDistanceLocation
Harrat Rahat is Saudi Arabia's largest lava field and comprises an area of 20,000 sq km, extending for 300 km at an average width of 60 km south of the holy city of Al Madinah (Medina).
Historic eruptions have occurred near Medina, notably one in 1256 AD.

Introduction:

The field which is progressively younger towards the north contains mostly basaltic scoria cones and lava flows reaching up to 100 km from the rift axis. However, the volcanic field also erupted some more silicic trachy-basaltic to trachytic magmas, which formed small lava domes with associated pyroclastic-flow and -surge deposits.

1256 AD eruption
The best-known eruption of Harrat Rahat was in 1256 AD and produced about 500 million m3 of lava flows from 6 vents aligned on the eruptive fissure. The lava flows traveled 23 km and came to within 4 km of Medina.

Derniers images satellite


See also: Sentinel hub | Landsat 8
 

Plus sur VolcanoDiscovery:

Volcano Calendar 2015
Volcano Calendar 2015: We're proud to present our new volcano calendar 2015: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
RSS feeds
Volcano & Earthquake news feeds: If you like to use RSS to access the latest news about volcanoes and earthquakes without needing to visit the site, have a look at our available news feeds!
Volcano Specials
Volcano Special Tours: We organize tours to particularly active volcanoes and during ongoing eruptions for extended observation time from various viewpoints. These trips, exclusively for very small groups, are often announced only at short notice and require fast travel and flexibility. Each trip is accompanied by a volcanologist from our team. Examples include: Kilauea (Hawai'i), Colima (Mexico), Krakatau and many others.
Etna Trekking Tours
Private tours on Etna volcano: Discover Europe's largest active volcano on private, guided 1-day tours. Tours can be customized for different interests and fitness levels.
Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.