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Posts Tagged ‘Java Quake’

M6.7 Quake Strikes South of Java

Posted by feww on April 4, 2011

Strong Earthquake Measuring 6.7Mw Strikes South of Java, ENE of Christmas Island

The quake struck at an estimated depth of 24 km about 241 km (149 miles) ENE of Christmas Island, USGS/EHP said.

Earthquake Location Map

Source: USGS/EHP. Map enhanced by FIRE-EARTH

Earthquake Details

  • Magnitude: 6.7
  • Date-Time: Sunday, April 03, 2011 at 20:06:42 UTC
  • Location: 9.786°S, 107.749°E
  • Depth: 24 km (14.9 miles)
  • Distances:
    • 241 km (149 miles) ENE of Christmas Island
    • 277 km (172 miles) S of Tasikmalaya, Java, Indonesia
    • 318 km (197 miles) S of Bandung, Java, Indonesia
    • 412 km (256 miles) SSE of JAKARTA, Java, Indonesia
  • Location Uncertainty:
    • horizontal +/- 12 km (7.5 miles)
    • depth +/- 7 km (4.3 miles)
  • Source: USGS NEIC (WDCS-D)

Tsunami Evaluation


Damage Report

There was no report of damage or casualties as of posting; however, news agencies quoted a spokesman for Indonesia’s earthquake agency as saying: “In Cilacap people were panicking—most of them are evacuating to higher ground.”

The agency reported the quake as a 7.1 magnitude striking at a depth of 10km with the epicenter located at about 300km from Cilacap, south coast of Java island, Indonesia.

Other Recent Significant Quakes:

  • FIJI Region: 6.4Mw; 17.649°S, 178.578°W; depth of 552km;   Sunday, April 03, 2011 at 14:07:09 UTC
  • Tarapaca Chile: 5.9Mw; 9.555°S, 69.072°W; depth of 83km;  Saturday, April 02, 2011 at 10:59:37 UTC
  • Crete, Greece: 5.9Mw; 35.729°N, 26.455°E; depth of 78km; Friday, April 01, 2011 at 13:29:12 UTC
  • E Honshu, Japan: 5.9Mw; 39.353°N, 141.982°E; depth of 38km;  Friday, April 01, 2011 at 11:57:54 UTC

Related Links

Posted in Indonesia earthquake, Indonesia quake, Indonesia tsunami | Tagged: , , , , | Leave a Comment »

Strong Quake Strikes Sunda Strait, Indonesia

Posted by feww on October 16, 2009

Strong Quake Measuring up to 6.4 Mw Strikes Sunda Strait, Indonesia

Strong earthquake measuring about 6.4 Mw struck Sunda Strait about 180 km WSW of JAKARTA, island of Java, Indonesia, at a depth of about 55km on Friday, October 16, 2009 at 09:53 UTC.

Some buildings  in the capital, Jakarta, were reported as swaying by the officials. So far there are no reports damage or casualties. A magnitude 7.9 quake, which struck southern Sumatra on September 30, left up to 1,200 people dead.

The quake shook buildings as far away as Jakarta, causing some people to leave their homes and offices. (Photo: Amee Enriquez, JG). Image may be subject to copyright.

Earthquake Details:

GFZ Potsdam – Earthquake Bulletin
Region: Sunda Strait, Indonesia
Time: 2009-10-16 09:52:55.9 UTC
Magnitude: 6.2  [Maximum quake magnitude estimated by FEWW at 6.4Mw]
Epicenter: 105.45°E 6.47°S
Depth: 64 km
Status: automatic

10-degree Map Centered at 5°S,105°E

sunda strait 16 oct 09
Earthquake Location Map. Source: USGS/EHP. Enhanced by FEWW.

USGS/EHP Release

  • Magnitude: 6.1 [Maximum quake magnitude estimated by FEWW at 6.4Mw]
  • Date-Time:
    • Friday, October 16, 2009 at 09:52:52 UTC
    • Friday, October 16, 2009 at 04:52:52 PM at epicenter
  • Location: 6.613°S, 105.182°E
  • Depth: 50.6 km (31.4 miles)
  • Distances:
    • 125 km (80 miles) S of T.-Telukbetung, Sumatra, Indonesia
    • 180 km (115 miles) WSW of JAKARTA, Java, Indonesia
    • 185 km (115 miles) W of Sukabumi, Java, Indonesia
    • 265 km (165 miles) W of Bandung, Java, Indonesia
  • Location Uncertainty: horizontal +/- 6.3 km (3.9 miles); depth +/- 8.8 km (5.5 miles)
  • Source: USGS NEIC (WDCS-D)
  • Event ID:  us2009mva4

Related Links [Including FEWW forecasts]

Posted in earthquake forecast, Earthquakes, feww earthquake forecast, seismic activity report, seismic hazard report | Tagged: , , , , , , | 1 Comment »

Strong Quakes Strikes Bhutan

Posted by feww on September 21, 2009

Magnitude 6.1 [possibly 6.4] Earthquake Strikes East of Thimphu, Bhutan

Strong earthquake measuring 6.1 to 6.4 Mw struck Bhutan 135 km NNW of Gauhati, Assam, India

Bhutan is a small landlocked country located at the eastern end of the Himalaya Mountains in South Asia, bordered by India  (south, east and west) and China (north).

The quake caused landslides blocking roads to mountanous regions, killing about a dozen people and destroying a few homes and a monstary in the nearby Tashigang district, according to media reports.

The quake was felt in Assam state, NW India, which borders Bhutan, but there were no reports of damage there, as of posting.

Map of Bhutan with the approximate position of the EQ marked.

Summary from: European-Mediterranean Seismological Center
Magnitude: Mw 6.4
Region: BHUTAN

Date time: 2009-09-21 at 08:53:06.0 UTC
Location: 27.47 N ; 91.48 E
Depth: 10 km

  • 45 km NW Guwahati (pop 899,094 ; local time 14:23 2009-09-21)
  • 99 km NW Tangla (pop 17,724 ; local time 14:23 2009-09-21)
  • 12 km S Trashiyangtse (pop 3,025 ; local time 14:53 2009-09-21)

EQ Details:  GFZ Potsdam – Earthquake Bulletin
Region: Bhutan
Time: 2009-09-21 08:53:06.3 UTC
Magnitude: 6.1
Epicenter: 91.46°E 27.34°N
Depth: 18 km
Status: manually revised

10-degree Map Centered at 25°N,90°E

locmap bhutan
EQ Location Map. Original map: USGS

Source of EQ Data: USGS NEIC (WDCS-D)

Magnitude: 6.1

  • Monday, September 21, 2009 at 08:53:05 UTC
  • Monday, September 21, 2009 at 02:53:05 PM at epicenter

Location: 27.352°N, 91.424°E
Depth:  10 km (6.2 miles)
Region: BHUTAN

  • 135 km (85 miles) NNW of Gauhati, Assam, India
  • 180 km (110 miles) E of THIMPHU, Bhutan
  • 615 km (380 miles) NNE of Kolkata (Calcutta), West Bengal, India

Location Uncertainty:  horizontal +/- 6.1 km (3.8 miles)
Parameters NST=134, Nph=134, Dmin=>999 km, Rmss=1.02 sec, Gp= 22°, M-type=teleseismic moment magnitude (Mw), Version=8

Related Links:

Posted in Assam, Bhutan quake, India, seismic activity report, THIMPHU, volcanic activity | Tagged: , , , , , | Leave a Comment »

Another Busy Day for Earthquakes

Posted by feww on September 8, 2009

Magnitude 6.2 Strikes South of Java, Indonesia

10-degree Map Centered at 10°S,110°E

South of Java  Indonesia - USGS map
EQ Location Map. USGS Map.

Earthquake Details

GFZ Potsdam – Earthquake Bulletin
Region: South of Java, Indonesia
Time: 2009-09-07 16:12:22.0 UTC
Magnitude: 6.2
Epicenter: 110.59°E 10.34°S
Depth: 20 km
Status: manually revised

South of Java  Indonesia
© Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum – GFZ

The earthquake occurred close to a site forecast by FEWW as epicenter of a major 2009 earthquake measuring  ≥ 8.4 Mw. [See location map above.]

Meanwhile …

Magnitude 5.0  EQ struck  Hokkaido,  Japan Region

The quake struck onshore close to the south coast of Hokkaido on September 07, 2009 at 16:24 UTC. The earthquake was the second of the same size to strike the area in 5 days.

10-degree Map Centered at 40°N,145°E
EQ Location Map. Source: USGS

EQ Details:

  • Magnitude: 5.0
  • Date-Time:  Monday, September 07, 2009 at 16:24:27 UTC [Tuesday, September 08, 2009 at 01:24:27 AM at epicenter]
  • Location: 42.167°N, 142.824°E
  • Depth: 71 km (44.1 miles)
  • Distances:
    • 155 km (100 miles) SW of Kushiro, Hokkaido, Japan
    • 160 km (100 miles) SE of Sapporo, Hokkaido, Japan
    • 770 km (480 miles) NNE of TOKYO, Japan
    • 7095 km (4400 miles) NE of MOSCOW, Russia
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2009lgbc


At 10:03 JST on   Sep 08, 2009  a  magnitude   3.9    quake struck  Chiba-ken Hokuseibu region centered at  35.8N,  140.1E and at a depth of  50km, JMA reported. [For background information and FEWW forecast see:  Earthquake Forecast: Tokyo, Japan]

Soon after, Sicily was struck …

Magnitude 5.0 EQ Strikes Sicily, Italy

The quake struck on Monday, September 07, 2009 at 21:26 UTC.

10-degree Map Centered at 40°N,15°E
EQ Location Map. Source: USGS

Earthquake Details

  • Location: 38.652°N, 14.074°E
  • Depth: 10 km (6.2 miles)
  • Region:  SICILY, ITALY
  • Distances:
    • 85 km (50 miles) NE of Palermo, Sicily, Italy
    • 140 km (85 miles) WNW of Messina, Sicily, Italy
    • 155 km (95 miles) NW of Catania, Sicily, Italy
    • 385 km (240 miles) SSE of ROME, Italy
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2009lgbr

See also: FEWW forecast: Earthquake Forecast: Southern Italy, Sicily

An hour or so later …

Magnitude 6.2 Strikes  Georgia (SAK’ART’VELO)

The strong mainshock was followed by a magnitude 5.0 aftershock about 8 minutes later.

10-degree Map Centered at 45°N,45°E
EQ Location Map. Source: USGS

EQ Details (mainshock)

  • Magnitude: 6.2
  • Date-Time: Monday, September 07, 2009 at 22:41:37 UTC [Tuesday, September 08, 2009 at 03:41:37 AM at epicenter]
  • Location: 42.712°N, 43.483°E
  • Depth: 10 km (6.2 miles) set by location program
  • Distances:
    • 80 km (50 miles) NE of K’ut’aisi, Georgia
    • 105 km (65 miles) WSW of Vladikavkaz, Russia
    • 135 km (85 miles) E of Zugdidi, Georgia
    • 155 km (95 miles) NW of TBILISI, Georgia
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2009lgbw

The two events were similar to a pair of quakes, measuring 5.9 and 5.3, that struck  eastern Chechnya at a depth of 10km, about 240km to the NE, on October 11, 2008.

The Chechnya quakes killed more than a dozen people and injured up to 150 others.

Related Links:

Posted in Hokkaido quake, Italy quake, Japan quakes, Palermo, SAK'ART'VELO quake, seismic activity report | Tagged: , , , , | 1 Comment »

Deadly Earthquake Strikes Java, Indonesia

Posted by feww on September 2, 2009

Powerful earthquake measuring at least 7.3 Mw strikes off the coast of Java, Indonesia.

FEWW ‘EarthModel’ estimated the magnitude as 7.6 Mw, while the quake was recorded by the European-Mediterranean Seismological Center as a magnitude 7.3Mw (±0.4 )

More than 20 people have been killed according to the initial reports, with  hundreds of structures destroyed or damaged in the city of Tasikmalaya and town of Sukabumi west of Java. Thousands of people have been evacuated, taking refuge in open areas, including the grounds of a military base.

Dozens more people were injured, including up to 50 people in Jakarta, about 190km from the epicenter, officials said.

deadly java quake
Magnitude 7.6Mw destroyed or damaged many buildings in the city of Tasikmalaya west of the island of Java. Photo: AFP. Image may be subject to copyright.

The quake struck offshore, with the epicenter about 115km west-southwest of Tasikmalaya city (190 km SSE of the Capital Jakarta), at a depth of about 60 km.

The mainshock was followed by at least 4 aftershocks, with 2 of the shocks measuring 5.6 and  5.2. Local tsunami warnings automatically issued after the quake have now been withdrawn. Local seismologists reported small  sea levels rises near the west coast of Java.

Summary of Earthquake details as reported by
European-Mediterranean Seismological Center

Magnitude:  7.3 Mw (±0.4 )

Date and time: 2009-09-02 at 07:55:03.8 UTC
Location: 7.84 S ; 107.35 E
Depth: 70 km

  • 91 km S Banjaran (pop 164,952 ; local time 14:55 2009-09-02)
  • 72 km S Banjar (pop 37,263 ; local time 14:55 2009-09-02

Automatic GEOFON Global Seismic Monitor

© Helmholtz-Zentrum Potsdam Deutsches GeoForschungsZentrum – GFZ

GFZ Potsdam – Earthquake Bulletin

  • Region: Java, Indonesia
  • Time: 2009-09-02 07:55:02.7 UTC
  • Magnitude: 7.4
  • Epicenter: 107.34°E 8.00°S
  • Depth: 62 km
  • Status: manually revised

In line with their current practice of downsizing nearly all their EQ reports in 2009, USGS Earthquake Hazard Program downgraded the quake to a magnitude 7.0 Mw.

FEWW Earthquake Forecast For Java/Bali Region:

  • Region: Java/Bali, Indonesia
  • Date of Occurrence: September to Late December 2009
  • Magnitude: 8.4+
  • Epicenter: 10°40’31.43″S 114°55’33.81″E
  • Depth: 40 km

Related Links:

Posted in Challis Oil Field, earthquake forecast, East Nusa Tenggara, Jabiru Oil Field, NW Australia, Plate boundaries, quake forecast, seismic event forecast, Timor Sea, Timor sea quake | Tagged: , , , , , , , , | 8 Comments »