Earthquake magnitude 6.7 - South of Java, Indonesia

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Magnitude 6.7 - SOUTH OF JAVA, INDONESIA

2011 April 03 20:06:42 UTC


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Earthquake Details

• This event has been reviewed by a seismologist.

<TABLE id=parameters summary="Earthquake Details"><TBODY><TR><TH>Magnitude</TH><TD>6.7</TD></TR><TR><TH>Date-Time</TH><TD>

• Sunday, April 03, 2011 at 20:06:42 UTC
• Monday, April 04, 2011 at 03:06:42 AM at epicenter
• Time of Earthquake in other Time Zones

</TD></TR><TR><TH>Location</TH><TD>9.786?S, 107.749?E</TD></TR><TR><TH>Depth</TH><TD>24 km (14.9 miles)</TD></TR><TR><TH>Region</TH><TD>SOUTH OF JAVA, INDONESIA</TD></TR><TR><TH>Distances</TH><TD>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

</TD></TR><TR><TH>Location Uncertainty</TH><TD>horizontal +/- 12 km (7.5 miles); depth +/- 7 km (4.3 miles)</TD></TR><TR><TH>Parameters</TH><TD>NST=167, Nph=168, Dmin=242.7 km, Rmss=1.18 sec, Gp= 40?,
M-type=regional moment magnitude (Mw), Version=7
</TD></TR><TR><TH>Source</TH><TD>

• USGS NEIC (WDCS-D)

</TD></TR><TR><TH>Event ID</TH><TD>usc0002i9q

</TD></TR></TBODY></TABLE>

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/usc0002i9q.php

 

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Re: Earthquake magnitude 6.7 - South of Java, Indonesia

Magnitude-6.7 earthquake strikes off Indonesia

<!-- cT-storyDetails --><CITE>April 4, 2011 - 8:19AM</CITE>

Excerpt:

Indonesian seismologists put the magnitude at 7.1 and issued a tsunami warning, saying the tremor had the potential to cause a killer wave and asking recipients of its public alert SMS to warn others of the danger.

The warning was later cancelled.

When the quake struck hundreds of residents in the seaport town of Cilacap fled inland and to higher ground by motorbike, car and on foot, an AFP reporter said.

"They were all panicking and shouting 'quake, quake'," the reporter said.

Suharjono, the technical head of Indonesia's Meteorology and Geophysics Agency, who like many Indonesians uses only one name, said shaking from the tremor had been felt in Pangandaran and Cilacap districts in Java.

"This quake roused people from their sleep," he said. "We have not received any reports of damage or casualties so far."

Full text:
http://news.smh.com.au/breaking-new...ake-strikes-off-indonesia-20110404-1cthe.html

 

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Re: Earthquake magnitude 6.7 - South of Java, Indonesia

Indonesian to English translation (Google)


Incident response earthquakes April 4, 2011 in waters south of Java.

Monday, April 4, 2011 09:43 administrator. Responses earthquake occurrence in the waters south of Java, based on information from BMKG, USGS, United States, GFZ, Germany and other data as follows:

1. The earthquake occurred on Monday, April 4, 2011, at 03:06:39 pm. Based on information from BMKG, earthquake center located at coordinates 10.01 ? S and 107.69 ? east, with a magnitude of 7.1 magnitude at a depth of 10 km, located 293 km southwest of Cilacap, Central Java. Meanwhile, according to the USGS, the earthquake center is at coordinates 9.786 ? S and 107.749 ? east, with a magnitude of 6.7 Mw at a depth of 24 km. According to the GFZ, the center of the earthquake is at coordinates 9.84 ? S and 107.75 ? east, with a magnitude of 6.7 Mw at a depth of 10 km.

2. Condition of Earthquake Affected Areas

Vibration felt strong earthquakes in southern coastal areas of West Java and Java Tenga. This region is prepared by the Quaternary sediments of coastal sediment, sediment and debris deposits in volcanic rocks. These deposits are loose, dust, yet compact (unconsolidated) and strengthen the shock effect (amplification), so vulnerable to earthquake shocks.

3. Earthquake Impact:

According to information from BMKG, earthquake shaking can be felt in Pangandaran and Cilacap (IV MMI), KARANGKATES, Denpasar, Yogyakarta, Cisarua, Purworejo (II MMI). In addition, residents reported, the quake was felt in Bandung (III-IV MMI). According www.detik.com, earthquake shock felt up to Jakarta and Denpasar. This earthquake also caused panic in Cilacap and the population spread out of the house. BMKG potential tsunami warning issued immediately after the earthquake and the early warning lifted approximately 1 hour and 30 minutes after the earthquake passed.

Until now, reports the earthquake response is made, there were no reports of casualties or building damage.

4. The cause of earthquakes:

By considering the location and depth of the earthquake center, earthquake is predicted intraplate earthquakes with hypocenter located on the Indo-Australian Plate. The source of this earthquake has a normal fault focal mechanism with southwest-southeast direction.

5. Recommendation:

Public urged to stay calm, follow directions and information from officers and Satkorlak Satlak PB PB, and not moved the issue of irresponsible about earthquakes and tsunamis.
Community to remain vigilant with the occurrence of earthquake aftershocks, the estimated magnitude smaller.

This earthquake did not cause a tsunami, because although the earthquake center is located in the sea, but is not expected to occur seafloor deformation that can generate a tsunami.

The full report can be downloaded here:
http://www.vsi.esdm.go.id/index.php?option=com_remository&Itemid=63&func=fileinfo&id=207

http://www.vsi.esdm.go.id/index.php...-selatan-jawa-&catid=41:info-gemtsu&Itemid=69