1. Mauna Kea is 13,803 feet above the sea level. 2. Mauna Kea is the tallest sea mountain in the world 3. The last eruption from Mauna Kea was around 4,500 years ago 4. Mauna Kea is around 1 million years old 5. Mauna Kea is one of the 5 main volcanoes of Hawaii island.

Rei Fukuzawa ERTH-103 33472 SP25 1: The transformation of blue rock into porous structures in Hawaii is fascinating! 2: Amazing how lava rocks act as natural aquifers, supplying Honolulu with 5M gallons of water daily. 3: Interesting explanation of how reefs and sedimentary rocks form from marine organisms. 4: The acid test clearly shows differences between igneous and sedimentary rocks. 5: A well-structured, educational video with great geological insights!

1. Blue lava rock is found underneath KCC and is very hard 2. Board of Water Supply pumps out approximately 5 million gallons of water daily from Kaimuki 3. Browning on rocks represent oxidization 4. Sedimentary rocks contain carbonate 5.Most Hawaiian rocks are igneous rocks made by the cooling of magma or lava

1. Blue lava rock is found underneath KCC and is very hard 2. Board of Water Supply pumps out approximately 5 million gallons of water daily from Kaimuki 3. Browning on rocks represent oxidization 4. Sedimentary rocks contain carbonate 5.Most Hawaiian rocks are igneous rocks made by the cooling of magma or lava

1. Blue lava rock is found underneath KCC and is very hard 2. Board of Water Supply pumps out approximately 5 million gallons of water daily from Kaimuki 3. Browning on rocks represent oxidization 4. Sedimentary rocks contain carbonate 5.Most Hawaiian rocks are igneous rocks made by the cooling of magma or lava

1. The reef rock reacts more to the hydrochloric acid test releasing bubbles of carbon dioxide. 2.Blue lava is found deep underground in the diamond head and its very hard to chip. 3.Most the rocks from the Hawaiian Islands are igneous. 4.The Diamond Head Crater zone is made of different rocks than the Kaimuki zone. 5. Blue rock is one of the many components that formed the Kaimuki Lava Dome.

1. The reef rock reacts more to the hydrochloric acid test releasing bubbles of carbon dioxide. 2.Blue lava is found deep underground in the diamond head and its very hard to chip. 3.Most the rocks from the Hawaiian Islands are igneous. 4.The Diamond Head Crater zone is made of different rocks than the Kaimuki zone. 5. Blue rock is one of the many components that formed the Kaimuki Lava Dome.

1. The reef rock reacts more to the hydrochloric acid test releasing bubbles of carbon dioxide. 2.Blue lava is found deep underground in the diamond head and its very hard to chip. 3.Most the rocks from the Hawaiian Islands are igneous. 4.The Diamond Head Crater zone is made of different rocks than the Kaimuki zone. 5. Blue rock is one of the many components that formed the Kaimuki Lava Dome.

Very interesting video. 1. The reef rock reacts more to the hydrochloric acid test releasing bubbles of carbon dioxide. 2.Blue lava is found deep underground in the diamond head and its very hard to chip. 3.Most the rocks from the Hawaiian Islands are igneous. 4.The Diamond Head Crater zone is made of different rocks than the Kaimuki zone. 5. Blue rock is one of the many components that formed the Kaimuki Lava Dome.

1. Mauna Kea is one of the 5 volcanoes that make up big island 2. Mauna Kea is over 33,000 from base to summit; Taller than Mount Everest 3. Considered an active volcano; last eruption was around ~4600 year’s ago 4. It’s home to basalt lava which flows and creates cinder cones 5. In 4,500 this volcano may reawaken and to be mindful that it is still considered an active volcano

1. Weathering has a big impact on changing the Hawaiian islands rock 2. Kimuki dome not only has lava rock but also blue which is also a very strong rock. 3. The rock that is called the Puka rock will retain the water 4. The island of Oahu has a few different types of reefs, flinging reefs and barrier reefs. 5. Organisms build up sedimentary rocks on the foundations of the lava rocks.

Aloha Professor, thank you for the informative video. Here are the things I learned: 1. Mauna Kea is the tallest mountain in Hawaii (13,803 feet above sea level). 2. Mauna Kea is one of the five major volcanoes that make up Hawaii's cinder block. 3. Mauna Kea is 1 Million Years Old. 4. Mauna Kea's last eruption occurred about 4,600 years ago. 5. Mauna Kea is an active volcano.

Thank you for the video, Professor Gazdar! Here are the 5 things I learned from the video: 1. Lanikai's beach is much smaller now, halved by erosion since my childhood. 2. The Mokes are protected as a bird sanctuary, and only Moku Nui is accessible. 3. Due to the unique shape of Lanikai and the Mokes, there’s little wind, leaving the waters calm and surf-free. 4. The beach’s crystal-clear water, thanks to the absence of stream runoff, makes it perfect for swimming. 5. Originally known as Kaʻohao, Lanikai’s beauty remains timeless.

Thank you for the video, Professor Gazdar! Here are the 5 things I learned from the video: 1. A significant outlier exists at Laie Point, which was separated during the 1946 tsunami. 2. The tsunami from Alaska in 1946 created the donut-shaped hole in the arch. 3. The 1946 tsunami reached heights of 15 feet (17 meters) and caused by a massive 9.2 magnitude earthquake in Alaska 4. Erosion from the sea threatens the stability of the arch, increasing the risk of collapse. 5. The reef consists of living organisms, as indicated by the presence of carbonate in the acid test.

1. The arch used to be part of the mainland 2. The Great Arch was separated by a tsunami in 1946 3.The tsunami was 50 feet tall 4.The arch may collapse due to erosion from the waves 5.The currents are turbulent because of the lack of a reef

Thank you for this excellent video! Here are 5 geological facts that I learned from the Laie Field Trip: 1.The “Great Arch” was formed during the tsunami of 1946. Part of the land that the arch was attached to was separated from the Island of Oahu. 2.The tsunami came from Alaska down to Oahu. 3.The estimated height of the waves was 50 feet. 4.The ocean current is very turbulent because there is no reef. 5.The reef in the Laie peninsula is carbonate material made by organisms.

Resubmitting with improved geological facts 1. A tsunami in 1946 formed the Laie arch and separated it from the island. 2. The constant crashing of waves are causing this arch to slowly erode and possibly collapse. 3. Some waves were even up to 50 ft high. 4. Since there is no reef in the peninsula, the currents there are very rough and strong. 5. The earthquake that cause the tsunami was off the coast of Alaska and was a magnitude of 9.2.

Yeonjae Park (ERTH101L spring 2025) Thank you for sharing a beautiful video! 1. Lanikai is developed from the koala shield volcano and from the offshore reef and the two smaller islands. 2. Lanikai means ka ohau and it means tying together or joining together. 3. There are 10 beach access entrances on mokulua drive that lead to lanikai beach. 4. The ocean bottom slopes gently to overhead depths along the entire beach. 5. Straight white fine sand beach is approximately one mile long, it narrows at both ends and wide ends in the middle.

1. The arch my collapse due to erosion and weathering from the waves 2. It was caused by a tsunami from a 9.2 earthquake in Alaska 3. The waves in this area is very strong because there is no reef blocking it 4. The reef that’s raised is made of carbonate material 5. The peninsula itself is raised reef

1. The arch was created by tsunami from the Alaska 1946 earthquake. 2. The arch was actually part of the main land but got separated by the 50-foot tsunami. 3. There is no reef so that causes the ocean to be turbulent. 4.The raised reef is carbonate material and was proved by the acid test. 5.The arch may collapse due to erosion.

Thanks for beautiful video 1. The waves near Laie Point are very strong and turbulent because there is no reef, because the Laie Peninsula is made from reef itself. 2.The Laie Arch was formed via separation during a tsunami in 1946. 3. The tsunami also created a donut like hole, coming in from Alaska. 4. The peninsula is composed of raised reefs on lava rocks. 5. The tsunami height was about 15 feet!

Teon: ERTH 103 KCC Laie Arch, Oahu Video 1. Laie point is on a raised reef on the outlier of the platform. 2. The Arch at Laie point was actually part of and connected to the main island or laie point. These land masses of the island were separated during the 1946 Tsunami from Alaska. This same tsunami actually created the arch. 3. The 1946 tsunami was 15 feet tall and created marine erosion of the outliers in Laie Point. The arch may collapse over time due to the weathering and erosion. 4. The ocean currents in the Laie area are very turbulent due to having no reef to reduce the seaway energy. 5. The peninsula is composed of raised reef stacked on lava rock, the acid test proves if the rock have carbonate or not. The rock in Laie in made of organism.

Very informative video professor! 1. Laie Arch is very distinct and noticeable with its dome shape and large hole in the middle 2. The hole in which Laie Arch is known for was created by a tsunami in 1946 3. In 1946 the tsunami that struck Laie Point was caused by a 9.2 earthquake in Alaska 4. The Laie Arch may collapse one day due to the constant corrosion occurring 5. Laie Point has very strong waves and currents in the water, this result in there being no reef or coral living in the waters surrounding Laie Point

Thank you for sharing your knowledge about the Lāʻie point. 1. The donut on the arch was created because of the tsunami in 1946 coming from Alaska. 2. The arch might collapse due to the weather and erosion. 3. The arch used to be part of the mainland but was separated by the tsunami. 4. The high magnitude of 9.2 crashed into the Lāʻie point destroyed all the houses in the area. 5. With no reef facing the peninsula of Lāʻie point, the current there is very turbulent.

Thank you for sharing this beautiful video!! 1. The arch was part of the main land of this island, but during the tsunami of 1946, this arch was separated. 2. Earthquake was 9.2 earthquake magnitude it crashed into layer point. 3. Tsunami height in 1946 was supposed to he about 15 feet at this point. 4. One day this arch may collapse due to the weathering and erosion by the seaway. 5. The peninsula is itself composed of rays reef on the lava rock.

1) Mauna Kea is the tallest mountain in Hawaii. 2) Mauna Kea’s last eruption occurred around 4,600 years ago. 3) Mauna Kea is a shield volcano that has evolved beyond the shield-building stage. 4) Mauna Kea is home to 13 of the world’s most largest and powerful telescopes. 5) Mauna Kea was created as the Pacific Plate moved over the “Hawaiian Hot Spot” located in the Earth’s mantle.

1. Laie Arch is created from Pleistocene and Holocene sand dunes and a coral conglomerate. 2. This structure was originally a part of mainland Oahu. 3. The hole in the arch was created by wave erosion during a tsunami. 4. Further weathering and erosion will occur due to a lack of reef protecting the arch. 5. The tsunami height was about 15 feet tall.

1. Haleiwa beach once grew pineapples and sugar cane 2. 100 years ago they put a break wall to protect the beach from erosion which proved to be ineffective 3. Oahu is around 4 million years old 4. Sea level rise due to temperatures and global warming eroding our beaches and sinking our island 5. Political funding or will nonexistent this giving up more of this part of our island

1. Mauna Kea is the tallest mountain in hawaii at 13,803 ft above sea level 2. Mauna Kea is the worlds home of astronomy and house 13 telescopes 3. Mauna Kea in total is 33,000 ft tall which makes it taller than MT. Everest and the tallest sea mountain 4. Mauna Kea is still active and its last eruption was around 4,600 years ago, it still has earthquakes that originate within in the mountain but not due to activity. 5. Scientists assume that Mauna Kea is 1 million years old. Also during its shield stage it built 90% of its volume.

What a beautiful natural phenomenon! 1.) The arch was once a part of the mainland island until the impact of the 1946 tsunami. 2.) The hole centered in the arch was also created from said tsunami. 3.) The tsunami reach about 50 feet, causing devastation and destruction to nearby area and homes. 4.) Due to the weathering of the waves, the arch is likely to collapse in the future. 5.) The peninsula surrounding the point is made of reef on top of lava rock, this is proven from the carbon material found and tested.

Mahalo for sharing this interesting video. I went to Mauna Kea lately to see the amazing sunset and stargazing. 1. Mauna O Wakea is the full name of this wonder, which means the mountain of the God Wakea. 2. Mauna Kea is the tallest mountain in Hawaii, standing at 13,803ft above sea level. 3. Thirteen of the world's cream of the crop telescopes are located on Mauna Kea. This is due to its ideal location and conditions. 4. We now know that Mauna Kea is actually an ACTIVE volcano. Although its most recent eruptions was about 4,600 years ago. 5. Experts estimate that Mauna Kea is roughly 1 million years old.

ERTH 101L Kai Otomo 1. Mauna Kea is one of 5 main volcanoes that make up Hawaii Island. 2. Mauna Kea is considered an active volcanoes where its last eruption was around 4,600 years ago. 3. Mauna Kea is over 33,000 feet tall from base to summit, which is significantly taller than Mt. Everest. 4. The earliest eruptions of Mauna Kea produced about 850 km3 of lava. 5. Mauna Kea is the world's home of astronomy.

1. Lanikai Beach is found by the Ko'olau shield volcano. 2. Lanikai beach is found on the eastside of Oahu. 3. Lanikai's original name is "Ka'ohao", which means "tying together" or "joining together." 4. There are 10 beach access points. 5. Lanikai is accurately translated to "sea heaven."

Thank you for great video. 1. The tsunami of 1946 caused the Laie Arch, which was once part of O'ahu island, to separate from the main land. The tsunami also created the hole in the Laie Arch. 2. The ocean is turbulent because there is no reef facing the peninsula 3.The 9.2 earthquake from Alaska caused the tsunami that demolished Laie Point. 4.The tsunami was 15 ft high. 5.The arch may collapse due to further erosion by sea waves

Thank you for great video of Mauna kea! 1. Mauna Kea is the tallest mountain in Hawaii with the summit being 13803 feet above sea level. 2. Mauna Kea's last eruption occurred about 4,600 years ago. 3. Mauna Kea was created as the Pacific Tectonic Plate moved over the “Hawaiian hot spot” located in the Earth’s mantle. 4. Mauna Kea is the highest mountain in Hawaii. 5.The shield stage's eruptions lasted around 800,000 years and are responsible for 90% of the volcano's estimated volume.

1. The hole at Laie Point was due to the tsunami of 1946 that came through from Alaska 2. The tsunami caused an earthquake that was a magnitude of 9.2 3. Due to the tsunami, the waves were about 15 feet tall 4. The arch may disappear one day due to weathering and erosion caused by the sea 5. The reef by Laie Point is made from carbonate material

nice video 1. most photographed beach and known for its moon/sunrises 2. you can swim, windsurf, canoe paddle, kayak, and sail at the beach 3. the original real name for Lanikai was Ka'ohao 4. 10 accesses to the beach 5. lanikai in hawaiian means "Sea heaven"

Thank you for the video! 1. the laie arch used to be part of the main land of the island but was separated due to a 1946 tsunami. 2. the laie arch is may collapse due to erosion and weathering. 3. waves are very turbulent because there are no reef 4. the reef is made by organism because when tested with acid, it bubbles which shows it is a carbonate material. 5. the 1946 tsunami came from alaska. the earthquake had a magnitude and 9.2 and waves reached nearly 50 feet.

This is a video with a lot to learn from. 1. The donut-shaped hole in the middle of the arch was formed by the tsunami from Alaska in 1946. 2. The tsunami in 1946 is estimated to have been about 15 feet high. 3. The arch is likely to one day collapse due to weathering and erosion of sea routes. 4. The peninsula is composed of rays reef on lava rock. 5. The reef is carbonate and is formed by organic matter.

Aloha Professor! Some facts about Mauna Kea are; 1. Mauna kea is 13,803 feet above sea level and is the tallest mountain in hawaii. 2. Mauna kea is over 33,000 feet tall from base to summit. 3. Mauna Kea is an active volcano. 4. Mauna Kea is probably at least 1 million years old. 5. Mauna Kea’s last eruption was around 4,600 years ago.

(ERTH-103Lab) Thank you for this video! 1. A donuts-shaped hole was formed by the 1946 tsunami from Alaska. 2. The tsunami demolished houses and cause great damage for people's lives. 3. One of the reasons the waves are rough because there is no coral reef. 4. The test can check whether carbon is present by pouring acid on the rocks. 5. When acid is poured onto coral, it generate bubbles. It provides that the coral was created by organisms.

Thank you for the informative video! Some interesting points I took away from this video are; 1. Igneous, basaltic/ blue rock was found on the campus of Kapiolani Community College. 2. This rock was not exposed to weather or oxidation. 3. An acid test shows that there was no reaction on the blue basaltic rock found, meaning it contains no calcium carbonate. 4. The rock tested from Diamond Head Crater contained crystals of calcite and had a reaction to the acid test. 5. The calcite crystals found in the Diamond Head rocks were mistaken for diamonds.

Great video! 1. The donut hole in the arch was made by the 1946 tsunami coming in from Alaska. 2.Laie Arch may collapse one day due to erosion/waves. 3. The Waves were recorded at 50 feet high or 17 meters. 4.The 1946 Tsunami was caused from a earthquake in Alaska that came with a 9.2 magnitude. 5. The Laie Arch Point is located on the North Shore of the island of O'ahu.

Great video!. 1. The donut shaped hole of the Laie arch was caused by a tsunami which happened in 1946 2. The tsunami came from Alaska which had a recored magnitude of 9.2 3. When the tsunami hit the arch it was believed to have been 50 feet or about 70 meters tall 4. One day the arch might break due to wether and constant eroison 5. There is no reef at Laie arch which makes the currents strong and rough

1. The donut-shaped hole of Laie Arch was created by the 1946 tsunami, which also separated the area from the mainland. 2. The tsunami was triggered by a magnitude 9.2 earthquake in Alaska. 3. When the tsunami reached Laie Arch, it was approximately 50 feet (about 15 meters) high. 4. Due to ongoing weathering and erosion, the arch may eventually collapse in the future. 5. The absence of a reef around Laie Arch causes the ocean currents in the area to be extremely strong and rough.

1. The Laie Arch was created because of the Tsunami in 1946 that came from Alaska 2. The arch has potential to collapse due to the active erosion from the sea waves 3. The waves are turbulent due to the lack of reef facing the peninsula 4. By using an acid test, you were able to see that the reef of the peninsula reacted to the acid because it was formed by marine organisms 5. Although there isn't reef facing the peninsula, the peninsula is composed of different reef on the lava rocks.

Maricela from ERTH 103. Nice video ! 1. The tsunami of 1946 created the arch and separated it from the island. This also made the donut Iike hole in the middle. The earthquake was a 9.2 coming from Alaska. 2. The arch with collapse due to the erosion and the waves 3.The reef consists of carbonated materials made by organisms in the ocean 4.There isn’t a reef facing the peninsula so the waves aren’t able to to be calmed and are turbulent. 5. The tsunami was 15ft and 17in tall

Beautiful video!!! 1.On the North shore of Oahu, the Laie Arch was then formed by a Tsunami in 1946 which made it separate from the main Island 2. Waves was said to be about 50 feet high which is about 17 meters when it hit because of an earthquake in Alaska. 3. No reefs and corals which resulted in Laie having strong and rough currents. 4. If the waves continue to be strong and rough, Laie will erode and eventually collapse. 5. It is dome shaped, has a distinctive hoe created in the middle of it.

1 1946. There was a 9.2 magnitude earthquake in Alaska. 2 that generated and sent a tsunami to Hawaii. 3. In Laie the tsunami caused a hole in one of the landmasses there today. 4. One day the arch will fall from withering any erosion. 5. Lava rock/ reef is carbon material and is made by organisms. 5

Arch was formed by tsunami from Alaska Happened in 1946 It's called Laie Arch no Reef so turbulent waves The reef was made by organisms