Strong earthquake hits south of tokyo-no tsunami danger

AP Associated Press

TOKYO (AP) — A strong earthquake struck off an island chain south of Tokyo on Tuesday, but officials said there was no danger of a tsunami.

Japan’s Meteorological Agency said the earthquake measured a preliminary magnitude of 6.9 and was very deep, about 480 kilometers (300 miles) below the ocean’s surface. Deep earthquakes generally cause less damage.

The U.S. Geological Survey put the magnitude at 6.3. Discrepancies often occur in preliminary readings because of slightly different equipment, locations and methods used in estimates, according to seismological experts.

The Japanese agency said the quake was centered west of the Ogasawara island chain in the Pacific Ocean about 1,000 kilometers (600 miles) south of Tokyo.

Japan earthquake: Large but very deep temblor strikes offshore

Saturday, May 30, 2015

A powerful and extremely deep earthquake struck near remote Japanese islands and shook Tokyo on Saturday, but officials said there was no danger of a tsunami, and no injuries or damage were immediately reported.

The magnitude-8.5 offshore earthquake struck off the Ogasawara islands at 8:24 p.m. at a depth of 370 miles, Japan’s Meteorological Agency said. The U.S. Geological Survey said the quake had a magnitude of 7.8 and a depth of 421 miles.

Damage worse than thought in Japanese earthquake

Yahoo News

TOKYO (AP) — The damage from an overnight earthquake in a mountainous area of central Japan that hosted the 1998 winter Olympics proved more extensive than initially thought.

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A daylight assessment Sunday found at least 50 homes destroyed in two villages, and 41 people injured across the region, including seven seriously, mostly with broken bones, officials said.

The magnitude-6.7 earthquake struck shortly after 10 p.m. Saturday west of Nagano city at a depth of 5 kilometers (3 miles), the Japan Meteorological Agency said. The agency revised the magnitude and depth from initial estimates. The U.S. Geological Survey recorded a magnitude of 6.2. Since the quake occurred inland, there was no possibility of a tsunami.


[Breaking] M6.8 hit Fukushima offshore / No update on Fukushima plant status

Fukushima Diary
At 4:22 7/12/2014 (JST), a strong earthquake of M6.8 hit Fukushima offshore.

The maximum seismic intensity was 4.

In area where Fukushima nuclear plant is located, it was 3. The epicenter was approx. 10km deep.

At this moment, no update on Fukushima plant situation has been published.

Magnitude-5.2 earthquake jolts Tohoku

Japan Times


(map: Lonely Planet)

An earthquake with a preliminary magnitude of 5.2 jolted northeastern parts of Japan on Sunday afternoon, the Meteorological Agency reported.

The quake struck at 2:24 p.m. at a depth of around 70 km on the southern coast of Iwate Prefecture, the agency said.

In parts of Miyagi, the temblor’s intensity was registered as 4 on the Japanese seismic scale to 7.

M5.7 earthquake jolts eastern Japan; no tsunami alert

Japan Today
NATIONAL NOV. 19, 2013 – 06:55AM JST
A 5.7-magnitude earthquake hit eastern Japan on Tuesday morning, seismologists reported. No tsunami alert was issued.

The quake struck at around 4:10 a.m. off the eastern Honshu coastline, 25 kilometers from the city of Toba and 37 kilometers from the city of Ise, according to the U.S. Geological Survey which monitors earthquakes worldwide.

The tremor struck far down at a depth of 332 kilometers, the USGS added. There were no initial reports of damage.

Japan lies on the so-called “Ring of Fire”, a series of seismic fault lines encircling the Pacific Ocean which create frequent seismic and volcanic activity.

A 5.5-magnitude earthquake hit eastern Japan last week, rocking buildings in Tokyo. That tremor struck at a much shallower depth of 59 kilometers.


Magnitude mb 5.1
Date time 2013-12-09 20:36:46.0 UTC
Location 36.38 N ; 141.84 E
Depth 5 km
Distances 208 km E of Tokyo, Japan / pop: 8,336,599 / local time: 05:36:46.0 2013-12-10
125 km E of Mito-shi, Japan / pop: 246,538 / local time: 05:36:46.0 2013-12-10
107 km E of Takahagi, Japan / pop: 33,576 / local time: 05:36:46.0 2013-12-10

Magnitude 5.0 quake jolts eastern Japan, no tsunami warning


TOKYO | Sun Nov 3, 2013 1:57am EDT

Nov 3 (Reuters) – An earthquake with a preliminary magnitude of 5 jolted eastern Japan including the capital, Tokyo, on Sunday, the NHK public broadcaster and witnesses said.

There were no immediate reports of injuries or damage, and no tsunami warning was issued. (Reporting by Tetsushi Kajimoto; Editing by Robert Birsel)