Odanohama Beach, located on Ōshima Island, known as the “Green Pearl,” is set in Kesennuma Bay within Rikuchū Kaigan National Park. In 1611, Spanish explorer Sebastián Vizcaíno, sent by Date Masamune to survey ports, named this island “Santa Catalina Island” in his book “The Discovery of the Island of Gold,” using the name of a Christian saint.
There is now a bridge connecting to Oshima, but before the earthquake, it was only accessible by ferry. As a result, the residents of the island were isolated for a while after the quake. Photo by Maki Takahashi.
Odanohama Beach was actually a very beautiful beach. Even a year after the disaster, something floated up in the sea every day, so volunteers worked every day to clean it. Photo by Maki Takahashi.
The beach was cleaned up, but beyond the sand, you could still see the piles of cars washed away by the tsunami. Photo by Maki Takahashi.
"That day, I was in the Seria parking lot. The moment I finished shopping and got into my car, it suddenly shook violently just before I started driving. I was on my way back from picking up my son and daughter from kindergarten. Since we were up on a hill, the shaking was terrifying—so intense I feared the mountain might collapse. The surrounding utility poles swayed wildly, and I panicked, wondering what if they fell and hit the car directly.
It was the parking lot shared by Saizeria and Seria, and the sound of glass shattering inside the stores echoed loudly—clang, clang. I felt relieved thinking, Thank goodness we weren't inside. We were in the open parking lot, so nothing fell on us, but the swaying utility poles and the unstable ground were very unsettling. Instead of rushing home, I headed straight to my grandmother's place first. I needed to make sure she was safe.
Grandma's house had tilted slightly. The entire structure had sunk about 5 centimeters, making the doors difficult to open and close. All the glass from the cabinets was scattered everywhere. The second-floor room was completely filled with books and belongings, leaving no space to step. I moved the futon to a safe spot, cleared away the glass shards, and made sure Grandma could sleep safely.
I returned home in the evening as darkness began to fall. Fortunately, my house had suffered almost no damage, and nothing had fallen over. However, the electricity wasn't working, and there was no running water. Gas was also unavailable, leaving the house pitch-black and making it impossible to see my hands. Looking down from my house on the hill, most buildings were shrouded in darkness, with only scattered lights dotting the town. The phone had worked briefly right after the quake, but after that, all communication was lost. My father was driving home, and we couldn't even confirm everyone's safety.
That night, we relied on candles and flashlights for light. The Bisco snacks I'd bought in bulk earlier proved useful as food. We also had a tabletop stove and rice, so we managed to eat and get by. We fetched water from my sister-in-law's house, bringing back two large plastic tanks, but the tap water didn't come back for about a week. Electricity finally returned after about three days.
In the pitch-black night, I could see something burning far out at sea. It was the petrochemical complex engulfed in flames. The next morning, I learned from our neighbor's son that a tsunami had struck, causing devastating damage. Since our neighborhood wasn't facing the sea, I could confirm my family was safe, but I was worried about friends living along the coast, and everyone was desperately trying to find them. Smartphones and social media weren't widely used yet, so information was scarce. We had no idea what was happening..."
News about Oshima being isolated after the Great East Japan Earthquake and what kind of support it received. (Japanese only)
One year after the Great East Japan Earthquake, in 2012, this video shows the scene on the evening of March 10th when fireworks and candle art were held on Kesennuma's Ōshima Island as a memorial, and the next day, March 11th, when volunteers and local residents observed a moment of silent prayer facing the sea at Oda Beach. (Japanese only)
Six years after the Great East Japan Earthquake, a long-awaited bridge has been built to an isolated island in Kesennuma City, Miyagi Prefecture, which suffered damage from the tsunami and other disasters. (Japanese only)
A video about the beauty of Oshima's landscapes and other attractions, as well as the dragon palace legends associated with Oshima. (Japanese only)
Beach clean-up events and water rescue drills are sometimes held at Odanohama Beach.
ANNnewsCH. (2012, March 2). Kesennuma-Island Ferry: Support Ends, Farewell (12/03/02) [Video]. YouTube. youtu.be/NJCeB8YmUw4?si=Xr83THBK-_zeONcH
ANNnewsCH. (2017, March 29). Long-awaited East Japan's longest arch bridge reaches isolated island after earthquake (03/29/17) [Video]. YouTube. https://youtu.be/4mB3PR345wc?si=sLhuhPS97yqdesTh
Kesennuma Tourism Promotion Organization. (2025, August 22). Kesennuma Oshima Odanohama Beach swimming area special event. kesennuma-kanko.jp/kodanohama-event/
Ministry of the Environment. (n.d.). Top 100 Beaches. Ministry of the Environment. water-pub.env.go.jp/water-pub/mizu-site/suiyoku2006/data/index.asp?info=6
Ocean and Japan Project. (2021, August 3). Kesennuma Oshima: Spectacular Views Woven by Sea and Mountains, and the Dragon Palace Legend Nippon Foundation Sea and Japan Project in Miyagi 2021 #09 [Video]. YouTube. youtu.be/OO5WJF74oRE?si=EYcvQxUXq0TOh_6B
uekate. (2019, March 19). Kesennuma Oshima Odanohama Beach [Video]. YouTube. https://youtu.be/bdn_eJsLadw?si=_inDsz3NdbDC-2V0