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Geysir (Icelandic pronunciation: [ˈceiːsɪr̥] ⓘ), sometimes known as The Great Geysir, is a geyser in south-western Iceland, [1] that geological studies suggest started forming about 1150 CE. [2] The English word geyser (a periodically spouting hot spring) derives from Geysir. [3]
Haukadalur geothermal area was mentioned in written sources around 1294 CE, [6] when new local hot springs were activated by earthquakes, [1] but geothermal activity was present before this. [7] Earthquakes are also known to have activated local geysers in the recent past, [ 3 ] including the earthquakes that occurred on 17 and 21 July 2000 .
The three primary stops on the route are the Þingvellir National Park, the Gullfoss waterfall, and the geothermal area in Haukadalur, which contains the geysers Geysir and Strokkur, which erupts every 10-15 minutes. [3] Though Geysir has been mostly dormant for many years, Strokkur continues to erupt every 5–10 minutes. [4]
Abstracted geological map of Haukadalur geothermal area Source See Geysir. Date 2024-02-04 ... opacity":0.0, "title": "Outlet area of The Great Geysir Thermal Map ...
The Geysers is the world's largest geothermal field [15] spanning an area of around 30 square miles (78 km 2) in Sonoma, Lake and Mendocino counties in California, centered in the area of Geyser Canyon and Cobb Mountain.
Strokkur (Icelandic [ˈstrɔhkʏr̥], "churn") is a fountain-type geyser located in a geothermal area beside the Hvítá River in Iceland in the southwest part of the country, east of Reykjavík. [1] It typically erupts every 6–10 minutes. [2] Its usual height is 15–20 metres (49–66 ft), although it can sometimes erupt up to 40 metres ...
The area was discovered and explored by Tatyana Ustinova in 1941. There are about 200 geysers in the area, along with many hot-water springs and perpetual spouters. The area was formed by vigorous volcanic activity. The peculiar way of eruptions is an important feature of these geysers.
The 7800 years BP Kjalhraun flow to the north-east has a similar area but covers only 11 km 3 (2.6 cu mi) with its eastern portion broken up by faulting from the Hofsjökull volcanic system. [13] [14] On the Kjalhraun flow's northern edge is the Hveravellir high-temperature geothermal field with an area of 2.5 km 2 (0.97 sq mi). [6]