How fast was the 1993 tsunami that strike Japan?
At 2217 local time (1317 UTC), the Ms-7.8 quake rocked the west coast of Hokkaido and the small, offshore island of Okushiri in the Sea of Japan, generating a major tsunami. Within 2-5 minutes, extremely large waves engulfed the Okushiri coastline and the central west coast of Hokkaido.
What caused the Japanese tsunami of July 12 1993?
On July 12, 1993 a large earthquake off the west coast of Hokkaido and the small offshore island of Okushiri in the Sea of Japan/East Sea, generated a destructive tsunami. Origin Time – The earthquake occurred at 1317:12 UT, July 12, 1993.
How did the 1993 Hokkaido earthquake happen?
The island was hit by a tremor measuring 6 on the Richter scale (estimated because the island did not have a seismograph). At around 22:20, the first wave of the tsunami struck the island, sweeping away many people and homes (385 homes out of 504) in the Aonae district of the island.
What does Japan do after a tsunami?
They are removing spent fuel rods from cooling pools, reinforcing a seawall to protect from future tsunamis, treating radioactive cooling water leaking from the reactors and removing highly contaminated debris.
What town built a wall to protect itself from tsunamis?
Taro
Before 2011, people in Taro assumed their walls would withstand just about everything. “Taro had built a perfect town to prevent disaster,” 63-year-old local tour guide Kumiko Motoda told AFP. The town adopted sea walls as early as 1934, after being engulfed by huge tsunamis in 1896 and 1933.
What parts of Japan were hit by tsunami?
Damaging tsunami waves struck the coasts of Iwate prefecture, just north of Miyagi prefecture, and Fukushima, Ibaraki, and Chiba, the prefectures extending along the Pacific coast south of Miyagi.
What could stop a tsunami?
The pressure of deep-ocean sound waves could be used to stop tsunamis in their tracks, researchers have found, by dissipating their energy across wider areas and reducing the height and speed of these monster waves before they reach land.
How long did the Japan tsunami last?
approximately six minutes
The magnitude 9.0–9.1 (Mw) undersea megathrust earthquake had an epicenter in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region, and lasted approximately six minutes, causing a tsunami….Intensity.
| Intensity | Prefecture |
|---|---|
| 2 | Wakayama, Tottori, Shimane, Okayama, Tokushima, Kochi, Saga, Kumamoto |