The class consists of four submarines, namely Vanguard, Victorious, The nuclear-powered ballistic missile submarine is in service with the UK’s Royal Navy. The Vanguard Class has a submerged displacement of 15,900t, making it the sixth biggest submarine in the world. The armoury also includes six multiple independently targetable re-entry vehicle warheads, six 533mm torpedo tubes and RPK-2 Viyuga cruise missiles.Ħ. The submarine carries 16 missiles and 45t Bulava submarine-launched ballistic missile (SLBM). The submerged endurance is dependent on the availability of food stores. It sails at a speed of 15kt on the surface and 29kt when submerged. Its power plant consists of an OK-650 nuclear reactor, one steam turbine, and one shaft and propeller. The 170m-long Borei Class has a 13.5m beam and a 10m draught. Two more Borei Class submarines named Vladimir Monomakh and Knyaz Vladimir joined Yury Dolgoruky by late-2014. It was designed by Rubin Design Bureau and constructed at a cost of $770m. The first Borei Class submarine, Yury Dolgoruky, was inducted into the Pacific Fleet of the Russian Navy in January 2013. With a submerged displacement of 24,000t, it is a nuclear-powered missile-carrying submarine serving the strategic naval forces of Russia. The Borei Class ranks as the world’s second-biggest submarine, along with Oscar II Class. In the past 1,000 years, at least 10 eruptions produced lava flows and tephra cones from the rift zone that crosses the volcano from southwest to east and through Haleakalā Crater.2. Haleakalā, the only active volcano on the Island of Maui, erupted most recently between about 600 and 400 years ago. The volcano's summit is about 969 m (3,179 ft) below sea level, located 30 km (22 miles) southeast of the Island of Hawai‘i. Kama‘ehuakanaloa (formerly Lō‘ihi Seamount), the only known active Hawaiian submarine volcano, erupted most recently in 1996 during an earthquake swarm of more than 4,000 events that were recorded by the HVO seismic network. Mauna Kea, the highest volcano on the Island of Hawai‘i, erupted most recently between about 6,000 and 4,500 years ago from at least seven separate summit-area vents, producing lava flows and cinder cones. Glaciers covered parts of the volcano's summit area during the recent ice ages, the only Hawaiian volcano known to have been glaciated. The most recent eruption in 1801 generated a lava flow that reached the ocean and now underlies the Kona International Airport. Lava flows less than 5,000 years old cover about 80 percent of the volcano. Hualālai, the third most active volcano on the Island of Hawai‘i, has erupted three times in the past 1,000 years and eight times in the past 1,500 years. Lava flows less than 4,000 years old cover about 90 percent of the volcano.
The most recent eruption in 2022 lasted two weeks and erupted lava flows that came to within 1.7 miles (2.8 kilometers) of the Daniel K. An eruption 1984 lasted 22 days and produced lava flows which reached to within about 7.2 km (4.5 miles) of Hilo, the largest population center on the Island of Hawai‘i. Mauna Loa, the largest volcano on Earth, has erupted 34 times since 1843. About 90 percent of the volcano is covered with lava flows less than 1,100 years in age.
Several summit eruptions since December 2020 have generated lava lakes that have been slowly filling in the collapsed area, including Halema‘uma‘u crater. In 2018, Kīlauea experienced the largest lower East Rift Zone eruption and summit collapse in at least 200 years. From 2008 to 2018, there was a lava lake within Halema‘uma‘u crater at the volcano's summit. Kīlauea, the youngest and most active volcano on the Island of Hawai‘i, erupted almost continuously from 1983 to 2018 at Pu‘u‘ō‘ō and other vents along the volcano's East Rift Zone. The Island of Maui has one active volcano, Haleakalā, which has erupted at least 10 times during the past 1,000 years. Kama‘ehuakanaloa (formerly Lō‘ihi Seamount), the submarine volcano located off the south coast of Kīlauea, erupted twice between 19. Mauna Kea most recently erupted only about 4,000 years ago. Between 19, there were nearly 50 Kīlauea eruptions, 12 Mauna Loa eruptions, and one Hualālai intrusion of magma. The Island of Hawai‘i, with four active volcanoes, is liveliest. The USGS Hawaiian Volcano Observatory (HVO) is responsible for monitoring six active volcanoes on the Islands of Hawai‘i and Maui. Particles were thrown up to 15 m (50 ft) high at this point and the intensity and height increased over the next two hours. An early morning view of the the Kamoamoa lava fountaining and flows from the western fissure on Sunday, Maat 7:20 a.m.
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