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Archive for the ‘Sumatra Volcanoes’ Category

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

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

    Large Quake Could Strike Near Padang, Sumatra

    Posted by feww on December 23, 2009

    Strong Earthquake Measuring 6.2 Mw Strikes Kepulauan Mentawai Region, Indonesia

    An earthquake measuring 6.2 Mw struck Kepulauan Mentawai Region, about 115 km (70 miles) WSW of Padang, Sumatra, Indonesia, at a depth of about 22km. The mainshock was followed by at least one aftershock measuring 5.3Mw.

    More than two dozen quakes measuring 5.0Mw or larger, including a 6.9Mw quake that occurred in August 2009, have struck the area since mid August 2009.

    Based on the existing information, FEWW EarthModel forecasts a large quake measuring ≥8.0 could strike near Padang, the capital and largest city of West Sumatra, Indonesia.

    Padang has a population of about 800,000 people.

    Earthquake Details:

    Region: Southern Sumatra, Indonesia
    Time: 2009-12-23 01:11:59.6 UTC
    Magnitude: 6.2 [estimated by FEWW]
    Epicenter: 99.47°E 1.43°S   [location estimated by USGS: 1.419°S, 99.448°E]
    Depth: 27 km

    EQ Location Map. Source: GFZ Potsdam – Earthquake Bulletin. Image may be subject to copyright.

    Seismic Hazard Map

    Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green. Source: USGS/EHP

    Historic Seismicity

    Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green. Source: USGS/EHP

    Related Links:

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