Diamond Head is a volcanic tuff cone on the Hawaiian island of Oʻahu and known to Hawaiians as Lēʻahi. The Hawaiian name is most likely derived from lae plus ʻahi because the shape of the ridgeline resembles the shape of a tuna's dorsal fin.

Is Diamond Head an extinct volcano?

Diamond Head is part of the Ko'olau Range. Ko'olau was a volcano that began erupting below sea level some 2.6 million years ago. ... Diamond Head is the youngest of these landmarks dating itself at about 200,000 years old. The vents are now extinct and Diamond Head has been dormant for about 150,000 years.

What type of volcano is Diamond Head?

Diamond Head is a special type of cinder cone because it was formed very explosively. He has a very large crater compared to the rim size. This type of volcano is called a tuff cone. Koko crater is another example of this type of volcano.

How was Diamond Head Hawaii formed?

About 300,000 years ago, molten lava flowed into the cool waters of the Pacific, creating a violent steam explosion. Cinder, ash and chunks of limestone reef flew into the air, then settled and hardened into a tuff cone that measures 760 feet at its highest point and has a 350-acre crater within it.

Why is the volcano called Diamond Head?

Known as Leahi (brow of the tuna) in Hawaiian, the crater was named Diamond Head by 19th century British sailors who thought they discovered diamonds on the crater's slopes. These "diamonds" were actually shiny calcite crystals that had no value.

The Volcanic Diamond Head Crater of Hawaii

30 related questions found

Is Diamond Head real?

Diamond Head (see more photos, view panorama) is one of the most famous landmarks on Oahu and the entire state of Hawaii. It has once been an active volcano, but hasn't spewed any ashes for more than 150,000 years. The extinct crater and lookout point at the peak of it is a popular hiking destination for many.

When did Haleakala last erupt?

Haleakalā has erupted at least ten times in the past 1,000 years. The last eruption occurred sometime between 1480 and 1600 according to scientific records. The history of Haleakalā and its recent activity indicate that the volcano will erupt again in the future.

Are there any active volcanoes on Oahu?

The Koolau and Waianae volcanoes are about 2 to 3 million years old. No Oahu volcano is active. ... Tourists also enjoy visiting the crater at Kilauea's summit, which is 4,009 feet (1,222 meters) above sea level and inside Hawaii Volcanoes National Park. Tourists also like to watch lava flowing down Kilauea into the ocean.

How did Diamond Head become a crater?

The huge crater was formed about 300,000 years ago during a single, explosive eruption that sent ash and other fine particles in the air. As these materials settled, they cemented together into a rock called tuff, creating the huge crater (geologyin.com).

What is in the middle of Diamond Head?

Inside the cone used to be Fort Ruger, which was the first US military reservation on the islands. Additionally, a shuttered air traffic control center operated on the interior of Diamond Head until 2001. Today, the inside of Diamond Head houses the Hawaii State Civil Defense and a National Guard facility.

How safe is Honolulu?

Honolulu is one of the safest cities in the nation. Though property crime rates can be quite high especially in the Waikiki area, the extensive police force keeps violent crime rates very low. The crime rate in Hawaii is 3.3 far below the average crime rate nationally of 3.8.

When did Diamond Head explode?

The views looking down from Diamond Head are amazing and well worth the many steps to the top. Diamond Head is actually an extinct volcanic crater. It is a lasting remnant of a volcanic explosion that occurred approximately 500,000 years ago.

How long ago did Diamond Head erupt?

Diamond Head is part of the Ko'olau Range of volcanoes that began erupting below sea level over 2.6 million years ago. A single eruption around 300,000 years ago created the crater.

Is Diamondhead made of Taydenite?

According to Dwayne, Diamondhead is not made of Taydenite. Diamondhead is the only alien other than Way Big to defeat Vilgax. He has gone from being one of the most used aliens in the first series, then one of the moderately used aliens in Alien Force, and now is one of the least used aliens in Ultimate Alien.

Can you hike Stairway to Heaven Oahu?

The Haiku Stairs, also known as 'Stairway to Heaven' in Oahu, make for one of the most popular, exciting, and controversial hikes in all of Hawaii. People travel from all over the world just for this one hike. ... Hiking the stairs is technically illegal. However, there is a way to legally make it to the top of the stairs.

What volcanoes are active in Hawaii?

Hawaii's Active Volcanoes. Two of the world's most active volcanoes - Kilauea and Maunaloa - can be found on Hawaii Island. Maunaloa last erupted in 1984, and Kilauea's last eruption was 1983-2018. Other volcanoes on Hawaii Island include: Maunakea, Hualalai, and Kohala.

How many volcanoes does Hawaii have?

The island of Hawaiʻi comprises five volcanoes, of which two (Kilauea and Mauna Loa) are still active.

What happened to Diamondhead?

Diamond Head is part of the system of cones, vents, and their associated eruption flows that are collectively known to geologists as the Honolulu Volcanic Series, eruptions from the Koʻolau Volcano that took place long after the volcano formed and had gone dormant.

When did Oahu last eruption?

The last eruption on the Waianae Range was 2.5 million years ago.

Is the volcano in Hawaii still erupting?

"The eruption is currently confined to Halemaʻumaʻu crater, within Hawai'i Volcanoes National Park.

Is there lava flowing in Hawaii right now?

Read more about the ongoing eruption here. This means that the answer to the question “can we see lava in Hawaii?” is “yes!”. -> Current eruption status: there is an active lava lake in the Halemaʻumaʻu crater.

Will Maui ever erupt again?

The West Maui Mountains are much older than Haleakala, the volcano observatory officials said. The most recent eruptions occurred between 400,000 and 600,000 years ago. “Because of their ages, we feel that it is unlikely that this volcano will erupt again,” the volcano observatory officials said.

Is Haleakala taller than Everest?

The peak of Haleakala National Park is 10,023ft (3,055m) above sea level. But that's not all! There is still 19,680ft (5,998m) of mountain hidden below the ocean's surface. This makes Haleakala taller than Mount Everest, by 675ft (205m), if you measure from the base to the summit.

Does every Hawaiian island have a volcano?

The Hawaiian Islands are at the southeast end of a chain of volcanoes that began to form more than 70 million years ago. Each island is made of one or more volcanoes, which first erupted on the floor of the Pacific Ocean and emerged above sea level only after countless eruptions.