Search results
Results from the WOW.Com Content Network
The 2022 eruption of Mauna Loa was an episode of eruptive volcanic activity at Mauna Loa, the world's largest active volcano, located on Hawaiʻi island, Hawaiʻi. Mauna Loa began to erupt shortly before midnight HST on November 27, 2022, when lava flows emerged from fissure vents in Moku‘āweoweo (Mauna Loa's summit caldera ).
A Hawaiian eruption is a type of volcanic eruption where lava flows from the vent in a relatively gentle, low level eruption; it is so named because it is characteristic of Hawaiian volcanoes. Typically they are effusive eruptions , with basaltic magmas of low viscosity , low content of gases, and high temperature at the vent.
At the time, Mauna Ulu was the longest flank recorded eruption of any Hawaiian volcano. The eruption formed a new vent, covered a large area of land with lava, and enlarged the island. The eruption started as a fissure between two pit craters, ʻĀloʻi and ʻAlae, where the Mauna Ulu shield eventually formed.
Like all Hawaiian volcanoes, Mauna Loa was created as the Pacific tectonic plate moved over the Hawaii hotspot in the Earth's underlying mantle. [10] The Hawaii island volcanoes are the most recent evidence of this process that, over 70 million years, has created the 3,700 mi (6,000 km)-long Hawaiian–Emperor seamount chain. [11]
This is a list of volcanic eruptions from Kīlauea, an active shield volcano in the Hawaiian Islands that is currently erupting. These eruptions have taken place from pit craters and the main caldera, as well as parasitic cones and fissures along the East and Southwest rift zones.
Kamoamoa is a set of volcanic fissures born on March 5, 2011, on the flanks of Kīlauea, Hawaii, US.Their opening between Puʻu ʻŌʻō to the east and Nāpau to the west follows a sudden drop in the level of lava lakes in the Puʻu ʻŌʻō and Halemaʻumaʻu craters, as well as an increase in nearby seismic activity, particularly tremors.
The volcano also erupted in June about a mile south of Kilauea caldera, marking the first eruption in that region of the volcano in about 50 years. The last one took place in December 1974 ...
The volcano has remained relatively active since the 1996 swarm and is monitored by the United States Geological Survey (USGS). The Hawaii Undersea Geological Observatory (HUGO) provided real-time data on Kamaʻehuakanaloa between 1997 and 1998. Kamaʻehuakanaloa's last known eruption was in 1996, before the earthquake swarm of that summer.