New Zealand’s Mount Rwabiho was captured in a stunning photo by an astronaut on the space station

Mount Rwabihu in New Zealand. September 23, 2021.

The lake on top of the volcano provides the main clues to what is happening below.

While passing over New Zealand’s North Island, an astronaut was aboard the International Space Station (IS) take a picture Mount Ruapehu, offers a peer-to-peer view (straight down) of the mountain and Tongariro National Park. Ruapehu Active Stratovolcano It has a height of 2,797 meters (9,177 ft) at its highest point. It is the highest mountain in the North Island.

Also called a compound volcano, a stratovolcano is a tall, cone-shaped volcano made up of several layers (layers) of solid lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes have a steep slope and occasional eruptions.

They are among the most common types of volcanoes, while shield volcanoes are less common. Three of the most famous examples of stratigraphic volcanoes are Vesuvius in Italy, whose catastrophic eruption in AD 79 buried the Roman cities of Pompeii and Herculaneum; Krakatoa in Indonesia, best known for its catastrophic eruption of 1883; and Mount St. Helens in Washington, whose major eruption occurred in 1980.

Near the summit lies Crater Lake (Te Wai ā-moe), which is heated by a hydrothermal system inside the volcano. The lake remains warm all year round (from 15 to 45 degrees Celsius[{” attribute=””>Celsius / 60 to 110 degrees at Ruapehu in 2022. Moderate tremors started in March and led volcanologists to issue an alert about heightened volcanic activity. They took periodic lake temperature measurements and sulfur dioxide emission samples to monitor changes. Water temperature peaked around 40 degrees Celsius (104 degrees Fahrenheit) in May 2022, but cooled to 24 degrees Celsius (75 degrees Fahrenheit) in the following months. By July, temperatures and emissions dropped enough to lower the volcanic alert level.

During the period of unrest, a magmatic intrusion was detected beneath the volcano. The intrusion suggested that magma was rising slowly under the volcano but had halted. As a result of the magma rising, scientists suggested that the likelihood of an eruption may have increased within the Crater Lake basin.

Astronaut photograph ISS065-E-415587 was acquired on September 23, 2021, with a Nikon D5 digital camera using a focal length of 1150 millimeters. It is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the Expedition 65 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet.