Volcanic crater lake

crater lakecaldera lakecratervolcanic lakeslakecratersvolcanic lakecrater lakescrater or caldera islands
A volcanic crater lake is a lake in a crater that was formed from an explosive activity or collapse during a volcanic eruption.wikipedia
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Maar

maar lakemaarsdry maar
Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent.

Crater Lake

Crater Lake, OregonCraterCrater Lake NPS HQ
A well-known crater lake, which bears the same name as the geological feature, is Crater Lake in Oregon.
Crater Lake (Klamath: giiwas ) is a crater lake in south-central Oregon in the western United States.

Lake Nyos

1986 Lake Nyos DisasterLake Nyos disasterNyos
Gas discharges from Lake Nyos (Cameroon) suffocated 1,800 people in 1986, and crater lakes such as Mount Ruapehu's (New Zealand) often contribute to destructive lahars.
Lake Nyos is a crater lake in the Northwest Region of Cameroon, located about 315 km northwest of Yaoundé, the capital.

Lake breakout

breakout
If the volcanic dam portion erodes rapidly or fails catastrophically, the occurrence produces a breakout or outburst flood.
High-altitude lakes tend to form in volcanic craters – where they are called crater lakes – or in valleys dammed as the result of earthquakes or glacial or volcanic deposition.

Volcanic dam

lava damlava dammedlava flow
At such a saddle location, the upper portion of the lake is contained only by its adjacent natural volcanic dam; continued leakage through or surface outflow across the dam can erode its included material, thus lowering lake level until a new equilibrium of water flow, erosion, and rock resistance is established.
This classification generally excludes other, often larger and longer lived dam-type geologic features, separately termed crater lakes, although these volcanic centers may be associated with the source of material for volcanic dams, and the lowest portion of its confining rim may be considered as such a dam, especially if the lake level within the crater is relatively high.

Lake Oku

Lake Oku is a crater lake on the Bamenda Plateau in the Northwest Region of Cameroon.

Lake Assal (Djibouti)

Lake AssalLake AsalLac Assal
Lake Assal (بحيرة عسل, literally 'honey lake') is a crater lake in central-western Djibouti.

Zengena Lake

Zengena crater lakeLake ZengenaZengena
Zengena Lake is a crater lake located at 10.91389°N, 36.96667°W in the Awi Zone of the Amhara Region in Ethiopia.

Lake Chala

Chala
Lake Chala, also known as Lake Challa, is a crater lake that straddles the border between Kenya and Tanzania.

Lake Ngozi

Mount NgoziNgozi
Lake Ngozi is the second largest crater lake in Africa.

Ganga Talao

Grand Bassin
Ganga Talao (commonly known as Grand Bassin) is a crater lake situated in a secluded mountain area in the district of Savanne, deep in the heart of Mauritius.

Bishoftu

Debre ZeyitDebre ZeitBishoftu (Debre Zeyit)
It is a resort town, known for five crater lakes: Lake Bishoftu, Lake Hora (a base for watersports, many water birds and an annual festival), Lake Bishoftu Guda, Lake Koriftu and the seasonal Lake Cheleklaka.

Lake Maninjau

ManinjauManinjau Caldera
Lake Maninjau (Danau Maninjau, meaning overlook or observation in the Minangkabau language) is a caldera lake in West Sumatra, Indonesia.

Mount Zuqualla

ZuquallaZequalaZuquala
With a height of 2989 m, it is known for its crater lake, lake Dembel, an elliptical crater lake with a maximum diameter of about one kilometer, but the trail around the crater is about 6 kilometers long.

Kawah Putih

Kawah Putih (Sundanese: ) (White Crater) is a striking crater lake and tourist spot in a volcanic crater about 50 km south of Bandung in West Java in Indonesia.

Mount Rinjani

RinjaniGunung RinjaniMt Rinjani
Adjacent to the volcano is a 6 by caldera, which is filled partially by the crater lake known as Segara Anak or Anak Laut (Child of the Sea), due to the color of its water, as blue as the sea (laut).

Lake Segara Anak

SamalasSegara Anak Segara Anak
Segara Anak is a crater lake in the caldera that formed during the explosive volcanic eruption of Mount Samalas in 1257.

Lahar

laharsmudflowsvolcanic mudflows
Gas discharges from Lake Nyos (Cameroon) suffocated 1,800 people in 1986, and crater lakes such as Mount Ruapehu's (New Zealand) often contribute to destructive lahars.

Lake Gunung Tujuh

Lake Gunung Tujuh or The Seven Mountain Lake in English is a volcanic crater lake in the province of Jambi, Indonesia, located at -1.70639°N, 101.41167°W within Kerinci National Park.

Annobón

AnnobonAnnobón IslandPagalu
Its central crater lake is named Lago A Pot and its highest peak is Quioveo, which rises 598 m. The island is characterized by a succession of lush valleys and steep mountains, covered with rich woods and luxuriant vegetation.

Lake Shikotsu

ShikotsuShikotsu CalderaShikotsuko Training Area
Lake Shikotsu is a caldera lake in Chitose, Hokkaidō, Japan.

Lake Towada

TowadaTowada CalderaTowadako
Lake Towada is the largest crater lake in Honshū island, Japan.

Lake Kussharo

KussharoKussharo Caldera
Lake Kussharo is a caldera lake in Akan National Park, eastern Hokkaidō, Japan.

Paektu Mountain

Baekdu MountainMount PaektuChangbai Mountain
A large crater lake, called Heaven Lake, is in the caldera atop the mountain.

Mount Bisoke

BisokeVisokeMount Visoke
Bisoke’s last eruption was in 1957 and has a crater lake at the summit, the largest of the range.