Best Tuff Cone

Molokini is a crescent-shaped volcanic tuff cone islet in the Alalakeiki Channel between Maui and Kahoolawe in Hawaii. Its partly submerged crater shelters coral reefs and is designated as a marine conservation area, making it a destination for snorkeling and scuba diving. The sheltered interior is...

Diamond Head, known in Hawaiian as Leahi, is a volcanic tuff cone on the southeastern coast of Oahu beside Honolulu and Waikiki. It formed during an explosive eruption, and its broad crater and prominent coastal profile later became a navigational landmark and a site of United States military fortif...

Hunga Tonga is an older volcanic island in the southwest Pacific kingdom of Tonga, associated with the largely submerged Hunga volcano. Its exposed rocks record earlier volcanic activity, including deposits of fragmented material. It should be distinguished from the new tuff cone that appeared betwe...

Rising above the eastern end of Waikiki, Diamond Head (Lēahi) is a tuff cone on Oahu, Hawaii, protected as a State Monument. It formed during the Pleistocene, approximately 300,000 years ago, as explosive volcanic activity deposited ash and other fragments around a vent. Those deposits hardened into...

On Jeju Island's eastern coast, Seongsan Ilchulbong, or Sunrise Peak, rises as a steep-sided volcanic cone with a broad summit crater. Explosive encounters between magma and water built its layered deposits of fragmented volcanic material. The crater rim gives it a ring-shaped outline, while its exp...

Pinnacle Rock stands beside the shore of Bartolomé Island in Ecuador's Galápagos archipelago. Its pointed profile and steep faces are the surviving remains of an eroded tuff cone, built from fragmented volcanic material. The feature belongs to the islands' protected coastal setting, where volcanic l...

On the southwestern coast of Jeju Island, South Korea, Yongmeori Coast exposes volcanic rock near Sanbangsan Mountain. Its cliffs preserve layered deposits formed through explosive interactions between magma and water. Subsequent wave erosion has cut into those deposits, revealing the succession of...

Within Tonga's southwest Pacific waters, Hunga Ha'apai forms an exposed remnant of the largely submarine Hunga volcanic system. The older island contains volcanic rocks and fragmented deposits that preserve evidence of activity before the recent eruptions. During 2014-2015, a new tuff cone grew betw...

Punchbowl Crater is a volcanic tuff cone in Honolulu on the island of Oahu. Its bowl-shaped interior contains the National Memorial Cemetery of the Pacific, which was established in 1949 and holds the remains of members of the United States armed forces as well as memorials to missing personnel. The...

Central Island is a volcanic island in Lake Turkana in northern Kenya. Formed by volcanic cones and craters within the East African Rift system, it contains three principal crater lakes commonly known as Crocodile Lake, Flamingo Lake, and Tilapia Lake. The island is protected as Central Island Natio...

Surtsey is a young, tuff-cone volcanic island formed off Iceland’s southern coast during the Holocene epoch. Its emergence in 1963 created a unique research reserve offering scientists an unparalleled opportunity to study ecological succession and geological processes in a newly formed environment....

The Caldeira das Sete Cidades is a large tuff-cone crater located on São Miguel Island in the Azores archipelago. Formed during the Pleistocene epoch through volcanic activity, it features a maar-caldera structure containing two distinct lakes—one blue and one green—resulting from varying mineral co...

Kavachi is an active submarine volcano in the Solomon Islands, southwest of Vangunu Island in the western Pacific Ocean. Its shallow eruptions commonly involve explosive interaction between magma and seawater, sometimes producing temporary islands or cones that are subsequently eroded below sea leve...

Hanauma Bay is a volcanic tuff cone located along Oahu’s southeast coastline. Formed during the Honolulu Volcanic Series, its breached tuff ring creates a unique marine environment. Designated as a nature preserve in 1967, it provides sheltered waters for snorkeling and observation of diverse marine...

Rangitoto Island is a volcanic tuff cone located in Auckland Harbour, New Zealand. Formed during the Holocene epoch through explosive eruptions of lava and ash, it represents a significant example of a basal tuff cone structure. The island’s dramatic basaltic peak and surrounding crater are notable...

A small tuff cone islet rising 206 feet off northeastern Oahu, Hawaii, protected as a state seabird sanctuary within Kāneʻohe Bay.

Molokini is a tuff cone islet located off the coast of Maui, Hawaii. Formed during the Pleistocene epoch from volcanic ash ejected by an underwater eruption, it now constitutes a marine reserve. The island’s unique geological structure and surrounding waters support diverse marine life, making it a...

Panum Crater is a rhyolitic volcanic feature near the southern shore of Mono Lake in eastern California. It consists of a tuff ring surrounding a central lava dome and formed through explosive interaction between rising magma and groundwater, followed by the extrusion of viscous rhyolite. As part of...

Vulcan Island, also known as Talay, is a volcanic tuff cone situated within Taal Lake in the Philippines. Formed during the Holocene epoch, it represents the active core of Taal Volcano. The island’s prominent crater holds the lake's primary water source and frequently displays volcanic activity inc...

Koko Crater is a volcanic tuff cone on the southeastern side of Oahu, Hawaii, within the Honolulu Volcanics. It was produced by explosive interactions involving magma and water, which accumulated fragmented volcanic material around a broad crater. The sheltered interior contains the Koko Crater Bota...

Laacher See is a maar lake located within the Eifel region of Germany. It represents the remains of a volcanic eruption around 13,000 years ago, creating a tuff-cone structure known as a ‘maar’. The significant feature is the extensive tuff ring and ash deposit resulting from this Plinian event, imp...

Bogoslof Island is an active volcanic island in Alaska's Aleutian chain, rising from a largely submarine volcano in the Bering Sea. Explosive eruptions involving seawater, ash, and magma have repeatedly created, removed, and reshaped portions of the island, leaving a coastline that changes markedly...

South Crater is a broad, nearly level volcanic basin on Mount Tongariro in New Zealand's central North Island. The Tongariro Alpine Crossing traverses its floor between the slopes near Ngauruhoe and the ascent toward Red Crater, making it one of the route's most recognizable landscape sections. Desp...

Fort Rock is a crescent-shaped volcanic tuff ring in Lake County, Oregon, formed when rising magma interacted explosively with water in the prehistoric Fort Rock basin. Erosion by waves from the former lake helped produce the breached, cliff-lined landform visible today. The formation lies within Fo...

Elegante Crater is a broad maar in the El Pinacate volcanic field of Sonora, Mexico, within the El Pinacate and Gran Desierto de Altar Biosphere Reserve. Approximately 1.6 kilometers across and about 200 meters deep, it formed through explosive interaction between rising magma and groundwater. Its e...

Ferdinandea, also called Graham Island, is a submerged volcanic feature in the Strait of Sicily between Sicily and Tunisia. An eruption in 1831 built a temporary island of loose volcanic material above sea level, prompting competing names and territorial claims before waves rapidly eroded it beneath...

South Island is a volcanic island in the southern part of Lake Turkana in Kenya. It is protected within South Island National Park, one of the three areas comprising the Lake Turkana National Parks UNESCO World Heritage property. The island lies in the tectonically active East African Rift and inclu...

Ōtuataua is a volcanic cone within the Auckland volcanic field near Ihumātao in New Zealand. It stands in the Ōtuataua Stonefields Historic Reserve, a landscape preserving archaeological evidence of Māori settlement and cultivation in soils modified with volcanic stone. The cone and surrounding ston...

The Specchio di Venere is a shallow crater lake located on the volcanic island of Pantelleria, Italy. It occupies a volcanic maar, which was formed by a phreatomagmatic eruption caused by the interaction of magma and groundwater. The lake's water is highly alkaline and warmed by geothermal activity,...