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A seismogram recorded in Massachusetts, United States. The magnitude 9.1 (M w) undersea megathrust earthquake occurred on 11 March 2011 at 14:46 JST (05:46 UTC) in the north-western Pacific Ocean at a relatively shallow depth of 32 km (20 mi), [9] [56] with its epicenter approximately 72 km (45 mi) east of the Oshika Peninsula of Tōhoku, Japan, lasting approximately six minutes.
The Intensity 7 ( 震度7, Shindo 7) is the maximum intensity in the Japan Meteorological Agency seismic intensity scale, covering earthquakes with an instrumental intensity (計測震度) of 6.5 and up. [ 15] At Intensity 7, it becomes impossible to move at will. [ 13] The intensity was created following the 1948 Fukui earthquake.
The largest megathrust event within the last 20 years was the magnitude 9.0–9.1 Tōhoku earthquake along the Japan Trench megathrust. [ 20 ] In North America, the Juan de Fuca Plate subducts under the North American Plate , creating the Cascadia subduction zone from mid Vancouver Island, British Columbia down to Northern California.
The largest earthquake ever recorded was a 9.5-magnitude quake in Chile on May 22, 1960, per the United States Geological Survey. For more People news, make sure to sign up for our newsletter ...
Following are some major Japanese quakes in the last 30 years: - On Jan. 16, 1995, an earthquake with a magnitude of 7.3 hit central Japan, devastating the western port city of Kobe. The worst ...
A magnitude 9.0 earthquake and subsequent tsunami in March 2011 devastated large areas along Japan's northeastern coast, killing nearly 20,000 people and triggering the Fukushima Daiichi nuclear ...
The 1 January 2024 mainshock was the strongest to hit the peninsula since records began in 1885. [ 15] The swarm began in December 2020 at depths greater than 15 km (9.3 mi) beneath the peninsula's northeast. By mid-March 2021, the earthquake swarm migrated to shallower depths above 15 km (9.3 mi).
August 8, 2024 at 4:29 AM. Google Maps. TOKYO — Japan issued a tsunami advisory Thursday after a 7.1-magnitude earthquake struck off the southern island of Kyushu. The temblor occurred off the ...