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Posts Tagged ‘Ogasawara Islands’

M8.5 Quake Strikes Ogasawara Islands, Japan

Posted by feww on May 30, 2015


Powerful earthquake rocks Bonin Islands, Japan

Centered at 27.9N, 140.8E the quake struck at a depth of 590km, according to Japan’s weather agency.

The quake registered up to ‘Upper 5′ on Japan’s seismicity scale of 1 to 7 in the Tokyo area. The epicenter of the quake was about 875km south of Tokyo, Japan.

Tsunami Evaluation: NO Pacific-wide destructive tsunami generated by this quake.

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Significant Quake Strikes S of Galesburg, Michigan

Posted by feww on May 2, 2015

M4.2 earthquake strikes 8km S of Galesburg, Michigan

Centered at 42.212°N, 85.429°W the quake occurred at a depth of 5.9 km, reported USGS/EHP.

EQ Details
Magnitude: 4.2Mw
Location: 42.212°N 85.429°W
Depth: 5.9 km
Time: 2015-05-02 16:23:07 UTC

Nearby Cities:

  • 8km (5mi) S of Galesburg, Michigan
  • 12km (7mi) E of Portage, Michigan
  • 15km (9mi) SE of Kalamazoo, Michigan
  • 23km (14mi) WSW of Battle Creek, Michigan
  • 92km (57mi) SW of Lansing, Michigan

Historic Earthquakes

Southern Michigan: 1947-08-10 at 02:46:41.3 UTC (local 08/09)
Magnitude: 4.60
Intensity: VI

Isoseismal Map

Damage was heaviest in the area southeast of Kalamazoo at Athens, Bronson, Coldwater, Colon, Matteson Lake, Sherwood, and Union City. Chimneys were damaged, windows and plaster were broken, and brick cornices were downed. Also felt in Indiana, Illinois, Ohio, Wisconsin, and Ontario, Canada. [Source: USGS/EHP]

Michigan: Earthquake History

Shallow Quake Generates 1-m Tsunami

Region name: Torishima Kinkai (Japan)

Magnitude 5.9
Location: 31.5N, 140.1E
Depth: Very Shallow
Time:  01:51 JST (UTC + 9.0 hrs) May 3, 2015 (Source: Japan’s weather agency.)

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M6.2 Quake Strikes Japan Region

Posted by feww on July 1, 2014


Earthquake Strikes near Bonin Islands, Japan Region

Centered at 28.4N, 138.9E the quake occurred at a depth of about 512km, according to USGS/EHP.

EQ Details
Magnitude: 6.2Mw
Event Time: 2014-06-30 19:55:32 UTC
Location: 28.354°N 138.864°E depth=512.4km (318.4mi)
Nearby Cities

  • 359km (223mi) WNW of Chichi-shima, Japan
  • 656km (408mi) SSE of Shingu, Japan
  • 682km (424mi) SSE of Owase, Japan
  • 683km (424mi) SSE of Tanabe, Japan
  • 817km (508mi) S of Tokyo, Japan

FIRE-EARTH Earthquake Forecasts for Japan

FIRE-EARTH Science Team has suspended its research on Japan seismicity, California ditto.


For detailed FIRE-EARTH Earthquake Forecasts tune into UDCCpf daily @ 06:32UTC.

 Related Links

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Volcano Erupts in Ogasawara Islands

Posted by feww on November 21, 2013

Warning issued to Pacific shipping after volcano erupts, forming a new Island

Authorities have warned shipping in the Pacific Ocean to maintain vigilance for airborne volcanic material after a volcano erupted near one of the Ogasawara Islands, some 1,000 kilometers south of Tokyo, NHK reported Japan’s Meteorological Agency (JMA) as saying.

Japan Coast Guard has confirmed black smoke spewing out of a new land mass about 500 meters southeast of Nishinoshima island, JMA said

Video footage shows a plume of black and white smoke and steam  rising to a height of more than 600 meters above a new landmass measuring about 200 meters across.

Ogasawara - new island formed from volcanic eruption
Black and white smoke and steam rising to a height of more than 600 meters above a new 200-m long landmass created by volcanic eruption near Nishino shima, Bonin Islands, south of Japan. Screenshot from NHK news video clip.

new volcanic island
Screenshot  from NHK news video clip.

“The agency says multiple clusters of white smoke overhead suggest intermittent explosions,” said the report.

Volcanic activity created a new island which was fused to the uninhabited Nishinoshima between 1973 and 1974, the last time when eruptions occurred near the island.

Location Map of Volcano Islands, Ogasawara Islands, Japan region. Image credit: Lim Tor

Bonin Islands (aka, Ogasawara Group, in Japan).  Click Image to Enlarge.

In 2010, one of the volcanoes in the region erupted, spewing smoke and ash to a height of about about 100 meters above the sea level. The surrounding sea area changed to a greenish-yellow color with nearby areas turning cloudy.

JMA said the volcano, called Fukutokuokanoba, had erupted seven times since 1904, forming ephemeral islands (temporary land masses) on three occasions, all of which later sank below the ocean surface.

The first known ephemeral island called Shin-Iwo-jima (New Sulfur Island) was formed in 1904, and the most recent in 1986.

What the Volcano Islands Look Like

North Iwo Jima Island (Official Japanese name Kita-iōtō, but commonly known as Kita-iōjima, meaning “north sulfur island”) is the northernmost island of the Volcano Islands cluster of the Ogasawara Islands, about 1175 km south of Tokyo. Image Credit: Chisatos

Related Links:

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