|
Mount Hudson is a stratovolcano in Chile, and the site of one of the largest eruptions in the twentieth century. A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ...
The most general definition of mountain range is a group of mountains bordered by lowlands. ...
This article needs to be cleaned up to conform to a higher standard of quality. ...
This article is about longitude and latitude; see also UTM coordinate system Map of Earth showing lines of latitude (horizontally) and longitude (vertically); large version (pdf) The geographic (earth-mapping) coordinate system expresses every horizontal position on Earth by two of the three coordinates of a spherical coordinate system which...
Mountains can be characterized in several ways. ...
View of Mount Rainier, a stratovolcano. ...
The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ...
A volcano is a geological landform (usually a mountain) where magma (rock of the Earths interior made molten or liquid by high temperature along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. ...
View of Mount Rainier, a stratovolcano. ...
(19th century - 20th century - 21st century - more centuries) Decades: 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s The 20th century lasted from 1901 to 2000 in the Gregorian calendar (often from (1900 to 1999 in common usage). ...
Geography
Mount Hudson is in southern Chile. The mountain itself is covered by a glacier. There is a caldera at the summit from an ancient eruption; modern volcanic activity comes from inside the caldera. Geologic features associated with glaciers include end, lateral, and medial moraines that form from glacially transported rocks and debris; U-shaped valleys and cirques (cwms) at their heads. ...
Crater Lake, Oregon A caldera is a volcanic feature formed by the collapse of a volcano into itself. ...
Download high resolution version (839x500, 165 KB)TOMS chart of sulfur dioxide emissions from volcanoes. ...
Download high resolution version (839x500, 165 KB)TOMS chart of sulfur dioxide emissions from volcanoes. ...
Sulfur dioxide (or Sulphur dioxide) has the chemical formula SO2. ...
A volcano is a geological landform (usually a mountain) where magma (rock of the Earths interior made molten or liquid by high temperature along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. ...
Historical Eruptions Large eruptions around 4750 BC and 1890 BC are believed to have been of Volcanic Explosivity Index (VEI) 6; these are probably responsible for the large caldera. Recently, the volcano has had moderate eruptions in 1891 and 1971 as well as a large eruption in 1991. BC may stand for: Ballistic Coefficient a measure of air drag on a projectile by calculating a ratio its sectional density to its coefficient of form. ...
BC may stand for: Ballistic Coefficient a measure of air drag on a projectile by calculating a ratio its sectional density to its coefficient of form. ...
The Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U.S. Geological Survey and Steve Self at the University of Hawaii in 1982 to provide a relative measure of the explosiveness of volcanic eruptions. ...
1891 was a common year starting on Thursday (see link for calendar). ...
1971 is a common year starting on Friday (click for link to calendar). ...
1991 is a common year starting on Tuesday of the Gregorian calendar. ...
1971 Eruption Before 1970, little was known about the mountain. Minor eruptive activity began in 1970 and melted parts of the glacier, raising river water levels and leading to the identification of the caldera. In August-September of 1971, a moderate eruption (VEI 3) located in the northwest area of the caldera sent ash into the air and caused lahars from the melting of a large portion of the glacier. The lahars killed five people; many more were evacuated. Note: as an adjective (stressed on the second syllable instead of the first), august means honorable. ...
September is the ninth month of the year in the Gregorian Calendar and one of four Gregorian months with the length of 30 days. ...
1971 is a common year starting on Friday (click for link to calendar). ...
For other meanings of Ve, see Ve (disambiguation). ...
A lahar is a mixture of rock, mud, and water that flows down from a volcano (or occasionally other mountains), typically along a river valley. ...
1991 Eruption The eruption in August to October 1991 was a large plinian eruption that ejected 2-6 cubic kilometers of material (a VEI of 5). Parts of the glacier melted and ran down the mountain as mud flows (see glacier run). Because of the remoteness of the area no humans were killed but hundreds of people were evacuated from the vicinity. Ash fell on Chile and Argentina as well as in the South Atlantic Ocean and on the Falkland Islands. Note: as an adjective (stressed on the second syllable instead of the first), august means honorable. ...
October is the tenth month of the year in the Gregorian Calendar and one of seven Gregorian months with the length of 31 days. ...
1991 is a common year starting on Tuesday of the Gregorian calendar. ...
Eruption of Vesuvius in 1822. ...
For other meanings of Ve, see Ve (disambiguation). ...
A so-called glacier run (literal translation of Icelandic jökulhlaup) is due to the eruption of a volcano under a glacier. ...
For other uses, see Atlantic (disambiguation) The Atlantic Ocean is Earths second-largest ocean, covering approximately one-fifth of its surface. ...
In addition to the ash, a large amount of sulfur dioxide and other aerosols were ejected in the eruption. These contributed to those already in the atmosphere from the even larger Mount Pinatubo eruption earlier in the year and helped cause a worldwide cooling effect over the following years. Ozone was also depleted, with the Antarctic ozone hole growing to its largest levels ever recorded in 1992 and 1993. (See the Mount Pinatubo article for more.) Sulfur dioxide (or Sulphur dioxide) has the chemical formula SO2. ...
Mount Pinatubo is an active volcano located on the island of Luzon in the Philippines, at the intersection of the borders of the provinces of Zambales, Bataan, and Pampanga. ...
Greek ἀνταρκτικός, opposite the arctic) is a continent surrounding the Earths South Pole. ...
Image of the largest antarctic ozone hole ever recorded in September 2000. ...
1991 is a leap year starting on Wednesday of the Gregorian calendar. ...
1993 is a common year starting on Friday of the Gregorian calendar and marked the Beginning of the International Decade to Combat Racism and Racial Discrimination (1993-2003). ...
Mount Pinatubo is an active volcano located on the island of Luzon in the Philippines, at the intersection of the borders of the provinces of Zambales, Bataan, and Pampanga. ...
Because of the Pinatubo eruption, the Hudson eruption received little attention at the time. Mount Pinatubo is an active volcano located on the island of Luzon in the Philippines, at the intersection of the borders of the provinces of Zambales, Bataan, and Pampanga. ...
References and External Links - Mount Hudson at Global Volcanism Program
- Mount Hudson at AGU
- Mount Hudson at VolcanoWorld
- Chile Volcanoes (USGS)
|
Feeds |
Contact