Katla’s summit sits at 4,961 feet (1,512 metres) above sea level, and its oval caldera is about 6 miles (10 km) across at its widest. Unrest was first noted in July, when a short-lived glacial flood burst from the Myrdalsjökull glacier that covers Katla occurred in connection with increased seismicity. Surface and bedrock topography of the Myrdalsjokull ice cap, Iceland: the Katla caldera, eruptions sites and routes of jokulhlaups. In the early morning of 18 July, a small jökulhlaup (sudden glacier-outburst flood) lasting less than 24 hours, occurred in "Jökulsá á Sólheimasandi," one of the rivers draining from the Mýrdalsjökull icecap (figure 2) towards the S. Inspection of the icecap revealed that a new ice cauldron, ~2 km wide, and 50 m deep, had formed just above the origin of the Sólheimajökull outlet glacier. People thought it was because of Katla showing her anger and that it was her fault if the glacier erupted. The Iceland Met Office (IMO) reported that seismic activity within Katla's caldera had increased in mid-June and then began to decline. More Details. Bull Volcanol, 70: 495-506. Larsen G, 1979. Expand each entry for additional details. Sources: Icelandic Meteorological Office (IMO); Iceland Magazine. Peak harmonic tremor on 8 July coincided with rising water levels and increased water conductivity, as measured by the main flood gauge (figure 6; gauge is at red triangle on figure 4). It is believed that there was a very big eruption in Katla from 932 to 936. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales. There is no Emissions History data available for Katla. One day she took her trousers and ran straight up to Mýrdalsjökull and was seen disappear into the glacier. During previous weeks microseismicity had been registered near several of the ice cauldrons. Possibly there were insignificant subglacial eruptions in 1955, 1999 and 2011. Res., 107: 33-54. The colours of the moss on the lava field were surreal. It is thought that it will only take 2-3 hours for an eruption to melt its way through the glacier. Katla. The activity intensified again at 1202 on 30 September with tremor and several earthquakes M 3 or larger. This renewable geothermal energy powers the artisan still that the vodka passes through on its way to perfection. The volcano is long "overdue" for an eruption, as it has historically erupted once every 40-80 years. She was housekeeper in the monastery and was thought to have supernatural powers. The Iceland Met Office (IMO) reported that an intense seismic swarm began at Katla on 29 September. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Bull Volcanol, 57: 18-32. Katla is about 30 km in diameter with a crater of 10 km in diameter. Katla’s eruption in 1918 was characterized by explosive activity that produced voluminous ash clouds and landslides. Volc., 68, 727-735. He knew that Katla had the magic trousers so he went back to the farm and took the trousers and put them on. This area is so extensive and it takes time to drive through the area. However, Katla eruption 1918 is the one we are counting from – so the time is ripe! Huge glacier flow came from underneath Kötlujökull as a result of the eruption. | October. Geotherm. Icelandic volcanologists are expecting another eruption in the next few years, so Myrdalsjokull and the Katla caldera are being monitored quite closely. On 29 July the Iceland Met Office (IMO) reported that a glacial outburst flood (jökulhlaup) in the Múlakvísl river, SE of Katla, had begun, and a M 3 earthquake along with a few smaller earthquakes were located in the N part of the caldera. It is worth mentioning that Katla has often erupted resultantly to eruption in Eyjafjallajökull. It poured over Mýrdalssandur and Vík í Mýrdal. Figure 1 shows annual seismic strain release from 1970-September 1977 in the Myrdalsjökull area. In some cases additional feature type, elevation, or location details are provided. Katla, a giant volcano hidden beneath the ice cap of Mýrdalsjökull glacier, is busy filling its magma chambers, new research confirms. Katla produces basaltic magmas that typically do not cause explosive eruptions. Katla is considered by many to be one of the greatest threats known to man due to its potential for devastation. TV Thrillers. The ice over the volcano melts because of the heat, causing the water to form a lake under the remaining ice cap. (Basaltic magmas are low in viscosity and contain low concentrations of gases.) Seismicity was low after the swarm had ended. Reports are organized chronologically and indexed below by Month/Year (Publication Volume:Number), and include a one-line summary. Reykjavik: Vaka-Helgafell, 168 p. Jakobsson S P, 1979. Soon afterwards a great glacier flood came from the glacier.

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