Search results
Results from the WOW.Com Content Network
The largest volcanic landslides on Earth occur from submarine volcanoes and are several times larger than those that occur on land. Submarine landslides with volumes of 100–150 km 3 (24–36 cu mi) have occurred in the Canary Islands within the last 43 million years, but the largest submarine landslides could have been up to 900 km 3 (220 cu ...
The bulge and surrounding area slid away in a gigantic rockslide and debris avalanche, releasing pressure, and triggering a major pumice and ash eruption of the volcano. The debris avalanche had a volume of about 1 km 3 (0.24 cu mi), traveled at 50 to 80 m/s (110 to 180 mph), and covered an area of 62 km 2 (24 sq mi), killing 57 people.
The world's largest historic subareal (on land) landslide occurred during the 1980 eruption of Mount St. Helens, a volcano in the Cascade Mountain Range in the State of Washington, US [13] The volume of material displaced was 2.8 km 3 (0.67 cu mi). [14] Directly in the path of the huge mudflow was Spirit Lake. Normally a chilly 5 °C (41 °F ...
The eruption of Mount St. Helens (18 May 1980) caused an enormous landslide when the top 1300 feet of the volcano suddenly gave way. Val Pola landslide during Valtellina disaster (1987) Italy Thredbo landslide , Australia on 30 July 1997, destroyed hostel.
A volcanic hazard is the probability a volcanic eruption or related geophysical event will occur in a given geographic area and within a specified window of time. The risk that can be associated with a volcanic hazard depends on the proximity and vulnerability of an asset or a population of people near to where a volcanic event might occur.
A volcanic eruption is essentially the only natural way for short-lived – less than a few years – gases like sulfur dioxide and water vapor to make it into the stratosphere.
Strombolian eruptions are a type of volcanic eruption named after the volcano Stromboli, which has been erupting nearly continuously for centuries. [13] Strombolian eruptions are driven by the bursting of gas bubbles within the magma. These gas bubbles within the magma accumulate and coalesce into large bubbles, called gas slugs.
The volcanic island of Anak Krakatau in Indonesia saw an eruption on 22 December 2018 which caused a deadly tsunami, with waves surging up to five meters in height. The tsunami killed at least 437 ...