AP: 7.3-magnitude quake rocks Japan — Fukushima tsunami warning triggered — Tepco orders workers near coast to move to higher ground

Published: October 25th, 2013 at 2:47 pm ET
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UPDATED HERE: Footage shows minute-long quake shaking Fukushima nuclear plant — Includes broadcasts from CTV, NHK, AOL, RT — Fukushima Official: “It was fairly big, and rattled quite a bit” (VIDEOS)

Associated Press, Oct 25, 2013 at 2:31p ET (h/t Anonymous tips): 7.3-magnitude quake rocks Japan [...] An earthquake of magnitude 7.3 struck early Saturday morning off Japan’s east coast, the U.S. Geological Survey said. Japan’s emergency agencies declared a tsunami warning for the region that includes the crippled Fukushima nuclear site. [...] NHK reported that Tokyo Electric Power Co., the operator of the Fukushima plant, ordered workers near the coast to move to higher ground. [...]

BBC News, Oct. 25, 2013 at 2:23p ET: Japan has issued a tsunami advisory for the Fukushima area – where the crippled nuclear plant is located – after a powerful quake in the Pacific [...] JMA issued a “yellow” advisory for Fukushima and also the prefectures of Iwate, Miyagi, Ibaraki and parts of Chiba, saying tsunami waves could reach 0.2-1m. “Tsunamis are expected to arrive imminently,” it said. [...]

USGS, Oct. 25, 2013: The October 25, 2013 M 7.3 earthquake offshore of Honshu, Japan occurred as the result of normal faulting in the shallow oceanic crust of the Pacific plate. The earthquake occurred outboard (east) of the Japan Trench, which marks the seafloor expression of the subduction zone plate boundary between the Pacific and North America plates, and is immediately up-dip of the source region of the March 2011 M 9.0 Tohoku earthquake. [...] The location, depth, and focal mechanism of the October 25 2013 event are consistent with normal faulting rupture near the outer-arc high of the Japan Trench. In this region, normal faulting is encouraged by both the bending of the Pacific plate as it enters the subduction zone, and by stresses transferred from the locked subduction thrust interface to the west. Since the March 2011 Tohoku earthquake, two large events of M 7.7 and M 7.3 have occurred in the vicinity of the October 25, 2013 earthquake. [...]

UPDATED HERE: Footage shows minute-long quake shaking Fukushima nuclear plant — Includes broadcasts from CTV, NHK, AOL, RT — Fukushima Official: “It was fairly big, and rattled quite a bit” (VIDEOS)

Published: October 25th, 2013 at 2:47 pm ET
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120 comments

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