The Ring of Fire is a region around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur. The Ring of Fire is a horseshoe-shaped belt about 40,000 km (25,000 mi) long and up to about 500 km (310 mi) wide.
The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately 1,300 km (810 mi) northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the Sea of Okhotsk from the north Pacific Ocean. There are 56 islands and many minor islets. The Kuril Islands consist of the Greater Kuril Chain and the Lesser Kuril Chain. They cover an area of around 10,503.2 square kilometres (4,055.3 sq mi), with a population of roughly 20,000.
The Invasion of the Kuril Islands was the World War II Soviet military operation to capture the Kuril Islands from Japan in 1945. The invasion, part of the Soviet–Japanese War, was decided on when plans to land on Hokkaido were abandoned. The successful military operations of the Red Army at Mutanchiang and during the invasion of South Sakhalin created the necessary prerequisites for invasion of the Kuril Islands.
Mount Cleveland is a nearly symmetrical stratovolcano on the western end of Chuginadak Island, which is part of the Islands of Four Mountains just west of Umnak Island in the Fox Islands of the Aleutian Islands of Alaska. Mt. Cleveland is 5,675 ft (1,730 m) high, and one of the most active of the 75 or more volcanoes in the larger Aleutian Arc. Aleutian natives named the island after their fire goddess, Chuginadak, who they believed inhabited the volcano. In 1894 a team from the U.S. Coast and Geodetic Survey visited the island and gave Mount Cleveland its current name, after then-president Grover Cleveland.
Paramushir is a volcanic island in the northern portion of Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. It is separated from Shumshu by the very narrow Second Kuril Strait in the northeast 2.5 km (1.6 mi), from Antsiferov by the Luzhin Strait to the southwest, from Atlasov in the northwest by 20 km (12 mi), and from Onekotan in the south by the 40 km (25 mi) wide Fourth Kuril Strait. Its northern tip is 39 km (24 mi) from Cape Lopatka at the southern tip of the Kamchatka Peninsula. Its name is derived from the Ainu language, from “broad island” or “populous island”. Severo-Kurilsk, the administrative center of the Severo-Kurilsky district, is the only permanently populated settlement on Paramushir island.
A somma volcano, also known as a sommian, is a volcanic caldera that has been partially filled by a new central cone. Mount Somma is a stratovolcano in southern Italy with a summit caldera in which the upper cone of Mount Vesuvius has grown.
Onekotan is an uninhabited volcanic island located near the northern end of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. Its name is derived from the Ainu language for "large village”. It is the second largest island, after Paramushir, in the northern subgroup of the Kurils. It is administratively included in the Severo-Kurilsky District of Sakhalin oblast, Russia.
Antsiferov Island is an uninhabited volcanic island located in the northern Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. Its former Japanese name is derived from the Ainu language for "place of tall waves". Its nearest neighbor is Paramushir, located 15 km away across the Luzhin Strait. It is currently named for the cossack explorer Danila Antsiferov, who first described it along with other northern Kuril islands in the early eighteenth century.
Kharimkotan ; Japanese 春牟古丹島; Harimukotan-tō, alternatively Harumukotan-tō or 加林古丹島; Karinkotan-tō) is an uninhabited volcanic island located 15 km (9 mi) from Onekotan near the northern end of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. Its name is derived from the Ainu language, from “village of many Cardiocrinum”.
Shiashkotan ; is an uninhabited volcanic island near the center of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean, separated from Ekarma by the Ekarma Strait. Its name is derived from the Ainu language, from “Konbu village”.
Fuss Peak is an active stratovolcano located on the southern end of Paramushir Island, Kuril Islands, Russia.
Kambalny is a stratovolcano located in the southern part of the Kamchatka Peninsula, Russia. It is the southernmost active volcano of Kamchatka. It has erupted mafic rocks. It has a summit crater as well as five cinder cones on its flanks which are the source of lava flows.
Nemo Peak is a stratovolcano located at the northern end of Onekotan Island, Kuril Islands, Russia. It is truncated by two nested calderas, with the cone of Nemo Peak itself rising in the southwest end of the youngest caldera and a crater lake partially filling the northeast part, named Ozero Chernoye.
Tao-Rusyr Caldera is a stratovolcano located at the southern end of Onekotan Island, Kuril Islands, Russia. It has 7.5 km wide caldera formed during a catastrophic eruption less than 10,000 years ago. The waters of Kol'tsevoe Lake fill the caldera, along with a large symmetrical andesitic cone, Krenitsyn Peak, that rises as an island within the lake. This volcano was named after Captain Pyotr Krenitsyn of the Imperial Russian Navy.
Moekeshiwan, also known as Lvinaya Past, is a volcano in the southern part of Iturup in the Kuril Islands, claimed by Japan and administered by Russia. The volcano is characterized by a large caldera that is flooded by the Sea of Okhotsk. A large eruption occurred early during the Holocene which reached a volcanic explosivity index of 7.
The Alaska Volcano Observatory (AVO) is a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). AVO was formed in 1988, and uses federal, state, and university resources to monitor and study Alaska's volcanology, hazardous volcanoes, to predict and record eruptive activity, and to mitigate volcanic hazards to life and property. The Observatory website allows users to monitor active volcanoes, with seismographs and webcameras that update regularly. AVO now monitors more than 20 volcanoes in Cook Inlet, which is close to Alaskan population centers, and the Aleutian Arc due to the hazard that plumes of ash pose to aviation.
Mount Gareloi, or Gareloi Volcano, is a stratovolcano in the Aleutian Islands of Alaska, United States, about 1,259 miles (2,026 km) from Anchorage. Gareloi is located on Gareloi Island, and comprises most of its land mass. The island also has two small glaciers which protrude to the northwest and southeast.
Kuril Ainu or Kuril, is an extinct and poorly attested Ainu language of the Kuril Islands, now part of Russia. The main inhabited islands were Kunashir, Iturup and Urup in the south, and Shumshu in the north. Other islands either had small populations or were visited for fishing or hunting. There may have been a small mixed Kuril–Itelmen population at the southern tip of the Kamchatka Peninsula.
