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Posts Tagged ‘Padang’

Strong Earthquake Strikes Southern Sumatra

Posted by feww on May 6, 2010

M6.5 Earthquake Strikes Southwest of Sumatra, Indonesia

The strong shock was centered at 4.063°S, 101.085°E and occurred at an estimated depth of about 27km on Wednesday, May 05, 2010 at 16:29:03 UTC, USGS/EHP said.

The earthquake epicenter was located about 50km (31 miles) NNW of a large 8.5Mw quake which struck on September 12, 2007 at a depth of about 34km (21miles) killing at least 25 people.

Tsunami Status

The Pacific Tsunami Center ruled out the possibility of a destructive widespread tsunami as a result of this quake, but did not rule out “a very small possibility of a local tsunami” that may affect the local coasts within a radius of about 100km from the quake’s epicenter.

Fire-Earth Forecast:

Fire-Earth Forecasts large scale volcanic activity in and around Sumatra Region in 2010 and beyond.

10-degree Map Centered at 5°S,100°E

Earthquake Location Map. Source: USGS/EHP. Map enhanced by Fire-Earth.

Earthquake Details

  • Magnitude: 6.5
  • Date-Time:
    • Wednesday, May 05, 2010 at 16:29:03 UTC
    • Wednesday, May 05, 2010 at 11:29:03 PM at epicenter
  • Location: 4.063°S, 101.085°E
  • Depth: 27 km (16.8 miles)
  • Distances:
    • 135 km (85 miles) WSW of Bengkulu, Sumatra, Indonesia
    • 215 km (135 miles) WSW of Lubuklinggau, Sumatra, Indonesia
    • 355 km (220 miles) SSE of Padang, Sumatra, Indonesia
    • 680 km (420 miles) WNW of JAKARTA, Java, Indonesia
  • Location Uncertainty:  horizontal +/- 5.3 km (3.3 miles)
  • Source:  USGS NEIC (WDCS-D)
  • Event ID: us2010vxbk

Related Links:

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    Posted in earhquake forecast, earthquake, earthquake 2010, Indonesia quake, sumatra quake, Sumatra Volcanoes | Tagged: , , , , | Leave a Comment »

    Powerful Quake Strikes Seabed Off W Indonesia

    Posted by feww on August 16, 2009

    A powerful earthquake measuring 6.7Mw strikes off the coast of western Indonesia

    The powerful earthquake, originally reported as measuring 7.0Mw, struck in the Kepulauan Mentawai Region, Indonesia, about 110 km WSW of Padang, Sumatra, Indonesia, at a depth of 44.8km on Sunday August 16, 2009, USGS reported.

    The earthquake, which was later downgraded by USGS EQ Hazard Program was followed by a cluster of  aftershocks at the time of writing, the largest of which measured 5.9Mw.

    [ Note: FEWW Moderators have noted that at least a dozen or so earthquakes which were initially reported as measuring 6.0 or greater, have been subsequently downgraded by USGS without any explanation.  Moderators also noted an  earthquake reported in Alaska, which measured greater than 5.0, was withdrawn from the USGS report last week, again without any explanation.]

    See also FEWW comments:

    According to Indonesia’s Meteorological and Geophysics Agency there was NO tsunami warning.

    Several people received minor injuries as they fled building in Padang, where a small number of buildings were damage, according to reports.

    Earthquake Details

    • Magnitude: 6.7
    • Date-Time
      • Sunday, August 16, 2009 at 07:38:25 UTC
      • Sunday, August 16, 2009 at 02:38:25 PM at epicenter
    • Location: 1.397°S, 99.473°E
    • Depth: 44.8 km (27.8 miles)
    • Distances
      • 110 km (70 miles) WSW of Padang, Sumatra, Indonesia
      • 305 km (190 miles) SW of Pekanbaru, Sumatra, Indonesia
      • 560 km (345 miles) SSW of KUALA LUMPUR, Malaysia
      • 960 km (600 miles) WNW of JAKARTA, Java, Indonesia
    • Location Uncertainty: horizontal +/- 5.8 km (3.6 miles); depth +/- 10.2 km (6.3 miles)
    • Parameters: NST=240, Nph=240, Dmin=683.1 km, Rmss=1.04 sec, Gp= 22°, M-type=teleseismic moment magnitude (Mw), Version=8
    • Source: USGS NEIC (WDCS-D)
    • Event ID:  us2009kjak

    10-degree Map Centered at 0°N,100°E

    Earthquake Location Map. Source: USGS

    Historic Seismicity [USGS]

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

    Seismic Hazard Map [USGS]
    Seismic Hazard Map
    Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green

    Related Links:

    Posted in aftershocks, Kepulauan Mentawai, Pekanbaru, seismic activity, seismic hazard report | Tagged: , , , , | 4 Comments »