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Posts Tagged ‘Hua-lien’

8th Strong Quake Strikes Ryukyu Islands, Japan

Posted by feww on February 7, 2010

Eighth Strong Earthquake Measuring 6.6Mw Strikes Japan Region

Background:

Referring to an earlier forecast, FEWW Moderators believe an additional series of 5 – 6 quakes measuring ≥ 6.0 Mw could strike Japan region in the coming weeks.

FEWW Moderators had previously anticipated more powerful earthquakes in the region, including as many as 10 additional magnitude 6+ quakes to strike the region in the coming weeks.

Earthquake Information Issued by JMA at 15:15 JST 07 Feb 2010

Occurred at (JST)

Latitude

Longitude

Depth

Mag.

Region Name

15:10 JST 07 Feb 2010

23.4ºN

124.0ºE

10km

6.6Mw

Ishigakijima Kinkai

Approximate distances (USGS)

  • 115 km (70 miles) SSW of Ishigaki-jima, Ryukyu Islands, Japan
  • 225 km (140 miles) ESE of Hua-lien, Taiwan
  • 225 km (140 miles) ESE of Su-ao, Taiwan
  • 2055 km (1280 miles) SW of TOKYO, Japan

Note: USGS/EHP has again downgraded the quake by 0.2 order of magnitude to 6.4Mw

Tsunami Forecast/Watch

JMA Issued a Tsunami Forecast at 15:13 JST 07 Feb 2010 for MIYAKOJIMA and YAEYAMA areas saying that tsunami height was expected to be about 0.5 meters.
However, the tsunami watch was later canceled. JMA said: “No tsunami damage at some of the other coasts though there may be slight sea level changes.:

Fire-Earth anticipates intense seismic activity and volcanic unrest/activity in the Japan Region throughout 2010 and beyond.

10-degree Map Centered at 25°N,125°E


Earthquake Location Map.
Source: USGS/EHP. Map enhanced by FEWW.


Political Map of Japan.

Related Links:

Posted in Japan quake, Japan Quake Forecast, Japan region quake, seismic event report, volcanism | Tagged: , , , , , , , , | 3 Comments »

Magnitude 6.3 quake strikes Taiwan region

Posted by feww on July 13, 2009

Strong Quake Strikes Taiwan – March 4

FOR March 4, 2010 Quake in Taiwan Click the Link ABOVE

A Magnitude 6.3 earthquake occurred near east coast of Taiwan.

A Magnitude 6.3 mainshock followed by a M5.1 aftershock struck about 60km east of the coastal town of Hua-lien, Taiwan, at a depth of 24.7 km, USGS reported.

The quake occurred about 40km east of an unnamed volcano [Volcano Number: 0801-03= ; Latitude: 24.00°N,  Longitude: 121.83°E] where according to the Global Volcanism Program:

A submarine eruption observed by the U.S. Navy boat “Southampton” took place on October 29, 1853 in the Philippine Sea offshore from the city of Hualien about 18 km from the eastern coast of Taiwan. Several days later another ship, the “Macedonian,” passed the same location and reported white ash covering its curtains.

Subject to further seismic activity in the area FEWW will publish the probability of eruption at volcano 0801-03.

10-degree Map Centered at 25°N,120°E

Tw - us2009jabu
Earthquake location. Original Map: USGS

Earthquake Details:

  • Magnitude: 6.3
  • Date-Tim:
    • Monday, July 13, 2009 at 18:05:02 UTC
    • Tuesday, July 14, 2009 at 02:05:02 AM at epicenter
  • Location:  23.997°N, 122.177°E
  • Depth:  24.7 km (15.3 miles)
  • Region:  TAIWAN REGION
  • Distances:
    • 60 km (40 miles) E of Hua-lien, Taiwan
    • 75 km (45 miles) SSE of Su-ao, Taiwan
    • 135 km (85 miles) SSE of T’AI-PEI, Taiwan
    • 150 km (95 miles) SE of Hsin-chu, Taiwan
  • Location Uncertainty:  horizontal +/- 6.9 km (4.3 miles); depth +/- 20 km (12.4 miles)
  • Parameters NST= 95, Nph= 95, Dmin=62.3 km, Rmss=0.72 sec, Gp= 50°, M-type=teleseismic moment magnitude (Mw), Version=6
  • Source:  USGS NEIC (WDCS-D)
  • Event ID: us2009jabu

Seismic Hazard Map – USGS

neic_jabu_w

Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Historic Seismicity [7+ shocks sine 1900] – USGS

neic_jabu_7

7_legend

Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

Related Links:

Posted in energy magnitude, euroasian plate, fault plane, Philippine Plate, radiated energy | Tagged: , , , , | 3 Comments »