Cenozoic Hawaii

atoll of the United States Minor Outlying Islands

Hawaiian volcano

volcano on the island of Hawaii in Hawaii, United States

Kauai, sometimes written Kauai, is one of the main Hawaiian Islands. It has an area of 562.3 square miles (1,456.4 km2), making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauai is 73 miles (117 km) northwest of Oahu, across the Kauai Channel. The island's 2020 population was 73,298.

Kīlauea ( , ) is an active shield volcano in the Hawaiian Islands. It is located along the southeastern shore of Hawaii Island. The volcano is between 210,000 and 280,000 years old and grew above sea level about 100,000 years ago. Since the islands were settled, it has been the most active of the five volcanoes that together form the island and among the most active volcanoes on Earth. The most recent eruption began in December 2024, with episodic lava fountains and flows continuing into 2026.

Lānai, sometimes written Lanai, is the sixth-largest of the Hawaiian Islands and the smallest publicly accessible inhabited island in the chain. It is colloquially known as the Pineapple Island because of its past as an island-wide pineapple plantation. The island's only settlement of note is the small town of Lānai City. The island is 98% owned by Larry Ellison, cofounder and chairman of Oracle Corporation; the remaining 2% is owned by the state of Hawaii or individual homeowners.

Niʻihau, sometimes written Niihau, is the seventh largest island in Hawaii and the westernmost of the main islands. It is southwest of Kauai across the Kaulakahi Channel. Its area is . Several intermittent playa lakes provide wetland habitats for the Hawaiian coot, the Hawaiian stilt, and the Hawaiian duck. The island is designated as critical habitat for Brighamia insignis, an endemic and endangered species of Hawaiian lobelioid. The United States Census Bureau defines Niihau and the neighboring island and State Seabird Sanctuary of Lehua as Census Tract 410 of Kauai County, Hawaii. Its 2010

Kahoolawe is the smallest of the eight main volcanic islands of the Hawaiian Islands. Unpopulated, it lies about southwest of Maui. The island is long by wide, with a total land area of . Its highest point is the crater of Luamakika, at the summit of Puuomoaula Nui, about above sea level.

thumb|right|250px|Sunrise at Haleakalā Haleakalā (; Hawaiian: ), or the East Maui Volcano, is a massive, active shield volcano that forms more than 75% of the Hawaiian Island of Maui. The western 25% of the island is formed by another volcano, Mauna Kahalawai, also referred to as the West Maui Mountains.

small island in Hawaii

undersea mountain in Hawaii, United States

Laysan (; ) is one of the Northwestern Hawaiian Islands, located northwest of Honolulu. It has one land mass of , about in size. It is an atoll of sorts, although the land completely surrounds Laysan Lake, some above sea level, that has a salinity approximately three times greater than the ocean. Laysan's Hawaiian name, Kauō, means "egg".

mountain on Oahu in Hawaii, United States of America

atoll of Hawaii

small islands and atolls in the Hawaiian archipelago

atoll in Hawaii

thumb|upright=1.4|Map showing the location of Nīhoa in the Hawaiian island chain Nīhoa, also written Nihoa and also known as Bird Island or Moku Manu, is the tallest of ten islands and atolls in the uninhabited Northwestern Hawaiian Islands (NWHI). The island is located at the southern end of the NWHI chain, southeast of Necker Island. Nīhoa is the closest NWHI in proximity to the eight main windward Hawaiian Islands at approximately northwest of the island of Kauaʻi. The island has two peaks, Miller's Peak in the west, and Tanager Peak in the east. Nīhoa's area is about and is surrounded by a

mountain range

island in Honolulu County, Hawaii, United States

Hualālai (pronounced in Hawaiian) is an active shield volcano on the island of Hawaii in the Hawaiian Islands. It is the westernmost, third-youngest and the third-most active of the five volcanoes that form the island of Hawaii, following Kīlauea and the much larger Mauna Loa. Its peak stands above sea level. Hualālai is estimated to have risen above sea level about 300,000 years ago. Despite maintaining a very low level of activity since its last eruption in 1801, and being unusually inactive for the last 2,000 years, Hualālai is still considered active, and is expected to erupt again sometim

island in Hawaii

thumb|upright=1.3|Kaula Island viewed from the north on Kaʻula Island, also called Kaʻula Rock, is a small, crescent-shaped island in the Hawaiian Islands. It is located 22 miles southwest of Niʻihau.

atoll of Hawaii

mountain in Hawaii

shoal in Honolulu County, Hawaii, United States

Molokini is a crescent-shaped, partially submerged volcanic crater which forms a small, uninhabited islet located in ʻAlalākeiki Channel between the islands of Maui and Kahoolawe, within Maui County in Hawaii. It is the remains of one of the seven Pleistocene epoch volcanoes that formed the prehistoric Maui Nui island, during the Quaternary Period of the Cenozoic Era.

non-regular jagged mountain range in Oahu, Honolulu County, Hawaii

mountain in United States of America

Kamakou () is a shield volcano on the island of Molokai in the U.S. state of Hawaii, with a summit elevation of . It is part of the extinct East Molokai shield volcano, which comprises the east side of the island.

mountain in Hawaii, US

prehistoric Hawaiian island

much eroded shield volcano that constitutes the western one-quarter of the Hawaiian Island of Maui

headland in Honolulu, Hawaii, United States